Brake disc with pin fin heat dissipation structure

Abstract

The brake disc with the pin fin heat dissipation structure comprises a disc body (1), a hollow installation portion (2) is arranged in the center of the disc body (1), and an installation side portion (3) is arranged on one side of the disc body (1). The disc body (1) is provided with a plurality of heat dissipation grooves (4) around the axis of the disc body (1), and the heat dissipation grooves (4) are communicated with the hollow mounting part (2) and the outside; a plurality of heat dissipation columns (5) arranged in a pin-fin-shaped array mode are arranged on the inner side wall of the heat dissipation groove (4). By increasing the contact area of the brake disc and air, air convection is enhanced, airflow circulation is promoted, the heat exchange efficiency is improved, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake discs, in particular to a brake disc with a pin-fin heat dissipation structure. Background Art

[0002] The brake is braked by the friction between the brake disc and the brake pad, so the brake disc is one of its important braking components. The friction between the brake disc and the brake pad generates heat, which increases the temperature of the brake disc. There is a heat dissipation structure of the existing brake disc, such as the Chinese utility model patent with the announcement number CN203756809U, which discloses a brake outer disc and a brake inner disc. The brake outer disc is connected to the brake inner disc through multiple connecting columns; a heat dissipation boss is provided on the brake inner disc. The brake outer disc and the brake inner disc are both annular discs, and the inner diameter of the brake outer disc is larger than the inner diameter of the brake inner disc. When this type of brake disc rotates, the heat dissipation boss rotates accordingly. When the heat dissipation boss rotates, an air flow is formed between the heat dissipation bosses, which facilitates the brake disc to dissipate heat through the heat dissipation holes. However, the contact area between the heat dissipation boss and the air is small, which makes the airflow circulation effect poor and reduces the heat exchange efficiency, so the overall heat dissipation effect is not ideal. Utility Model Content

[0003] The purpose of the utility model is to provide a brake disc with a pin-fin heat dissipation structure. The utility model increases the contact area between the brake disc and the air, strengthens air convection, promotes air circulation, improves heat exchange efficiency, and enhances heat dissipation effect.

[0004] The technical solution of the utility model is: a brake disc with a pin-fin heat dissipation structure, comprising a disc body, the center of the disc body has a hollow mounting portion, one side of the disc body is provided with a mounting side portion; the disc body is provided with a plurality of heat dissipation grooves around the axis of the disc body, and the inner side walls of the heat dissipation grooves are provided with a plurality of heat dissipation columns arranged in a pin-fin-shaped array.

[0005] In the above-mentioned brake disc with pin-fin heat dissipation structure, the disc body includes an inner body and an outer body, a connecting partition is provided between the inner body and the outer body, and a heat dissipation groove connects the hollow mounting part with the outside; the heat dissipation groove is formed by two adjacent connecting partitions, and the heat dissipation column is arranged on one side of the outer body.

[0006] In the aforementioned brake disc with pin-fin heat dissipation structure, the mounting side portion includes a disc body fixed to one side of the disc body, the central portion of the disc body has a central hole corresponding to and connected to the hollow mounting portion, and a plurality of mounting holes are evenly arranged on the disc surface of the disc body.

[0007] In the aforementioned brake disc with pin-fin heat dissipation structure, the disc body and the mounting side portion are an integrated structure.

[0008] In the aforementioned brake disc with a pin-fin heat dissipation structure, the heat dissipation columns are arranged in 8×12, the diameter of the heat dissipation columns is 1.5 mm, the spacing between adjacent heat dissipation columns is 0.5 mm, and the height of the heat dissipation columns is 5 mm.

[0009] In the aforementioned brake disc with a pin-fin heat dissipation structure, the heat dissipation columns are arranged in 4×6, the diameter of the heat dissipation columns is 1.5 mm, the spacing between adjacent heat dissipation columns is 2.5 mm, and the height of the heat dissipation columns is 5 mm.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. In the utility model, the brake disc includes a disc body and a mounting side portion, the disc body is provided with a plurality of heat dissipation grooves, and the inner side walls of the heat dissipation grooves are provided with a plurality of heat dissipation columns arranged in a pin-fin array. When the brake disc rotates, the airflow passes through the heat dissipation columns, thereby increasing the contact area. As the brake disc rotates, the air convection is enhanced, which promotes the circulation of airflow, improves the heat exchange efficiency, and enhances the heat dissipation effect.

[0012] 2. The disc body and the mounting side are an integrated structure, and the integrated structure can improve the structural strength of the disc body and the mounting side. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 is a schematic diagram of a heat sink;

[0015] Figure 3 is a schematic diagram of a heat dissipation column;

[0016] Figure 4 It is a cross-sectional view of the utility model.

[0017] Explanation of the markings in the accompanying drawings: 1-disk body, 2-hollow mounting portion, 3-mounting side portion, 4-heat dissipation groove, 5-heat dissipation column, 6-inner body, 7-outer body, 8-connecting baffle, 9-disk body, 10-center hole, 11-mounting hole. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0019] Embodiment: A brake disc with a pin-fin heat dissipation structure comprises a disc body 1, as shown in the attached Figure 1As shown, the center of the disc body 1 has a hollow mounting portion 2, and the hollow mounting portion 2 will penetrate the mounting shaft body. One side of the disc body 1 is provided with a mounting side portion 3, and the mounting side portion is connected to the wheel hub. The mounting side portion 3 includes a disc body 9 fixed to one side of the disc body 1. The center of the disc body 9 has a center hole 10 corresponding to and communicating with the hollow mounting portion 2. A plurality of mounting holes 11 are evenly arranged on the disc surface of the disc body 9. The shaft body will penetrate into the center hole, and bolts are installed in the mounting holes to achieve the connection between the brake disc and the wheel hub. The disc body 1 has a plurality of heat dissipation slots 4 around the axis of the disc body 1, as shown in the attached Figure 2 As shown, the heat dissipation slot 4 connects the hollow mounting portion 2 with the outside, and the hot air flow inside the disk body flows to the outside through the heat dissipation slot; the inner wall of the heat dissipation slot 4 is provided with a plurality of heat dissipation columns 5 arranged in a pin-fin array, as shown in the attached Figure 3 and 4 shown.

[0020] The disc body 1 includes an inner body 6 and an outer body 7, a connecting baffle 8 is provided between the inner body 6 and the outer body 7, the outer member, the inner member and the connecting baffle are integrally formed, the heat dissipation slot 4 is formed by two adjacent connecting baffles 8, and the heat dissipation column 5 is arranged on one side of the outer body 7. When the brake disc rotates, the airflow will flow between the heat dissipation columns, and the area of ​​the airflow and the heat dissipation column will increase, thereby improving the heat exchange efficiency and the heat dissipation effect. The disc body 1 and the mounting side portion 3 are an integrated structure, and the integrated structure can improve the good structural strength of the disc body and the mounting side portion.

[0021] In this embodiment, the heat dissipation columns 5 are arranged in 8×12, the diameter of the heat dissipation columns 5 is 1.5 mm, the interval between adjacent heat dissipation columns 5 is 0.5 mm, and the height of the heat dissipation columns 5 is 5 mm.

[0022] In one embodiment, the heat dissipation columns 5 are arranged in 4×6, the diameter of the heat dissipation columns 5 is 1.5 mm, the spacing between adjacent heat dissipation columns 5 is 2.5 mm, and the height of the heat dissipation columns 5 is 5 mm.

[0023] In other embodiments, the height of the heat dissipation column can also be selected as 3 mm, and the heat dissipation column can also be arranged on two sides of the heat dissipation groove. Therefore, when manufacturing the brake disc, the number, spacing and height of the heat dissipation columns can be set according to actual heat dissipation requirements to meet various heat dissipation requirements.

[0024] The working principle of the utility model is as follows: the brake disc comprises a disc body and a mounting side portion, a plurality of heat dissipation grooves are arranged on the disc body, and a plurality of heat dissipation columns arranged in a pin-fin array are arranged on the inner side walls of the heat dissipation grooves. When the brake disc rotates, the air flow passes through the heat dissipation columns, thereby increasing the contact area. As the brake disc rotates, the air convection is enhanced, which promotes the circulation of air flow, improves the heat exchange efficiency, and enhances the heat dissipation effect.

[0025] The above embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. In this embodiment, up, down, left, right, front, and back only represent their relative positions and do not represent their absolute positions. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A brake disc with a pin-fin heat dissipation structure, comprising a disc body (1), characterized in that: The disk body (1) has a hollow mounting portion (2) at the center, and a mounting side portion (3) is provided on one side of the disk body (1); the disk body (1) has a plurality of heat dissipation grooves (4) around the axis of the disk body (1), and the heat dissipation grooves (4) connect the hollow mounting portion (2) with the outside; and a plurality of heat dissipation columns (5) arranged in a pin-fin array are provided on the inner side wall of the heat dissipation groove (4).

2. The brake disc with a pin-fin heat dissipation structure according to claim 1, characterized in that: The disk body (1) comprises an inner body (6) and an outer body (7), a connecting baffle (8) is provided between the inner body (6) and the outer body (7), the heat dissipation groove (4) is formed by two adjacent connecting baffles (8), and the heat dissipation column (5) is provided on one side of the outer body (7).

3. The brake disc with a pin-fin heat dissipation structure according to claim 1, characterized in that: The mounting side portion (3) comprises a circular disc (9) fixed to one side of the disc body (1); the central portion of the circular disc body (9) has a central hole (10) corresponding to and connected to the hollow mounting portion (2); and a plurality of mounting holes (11) are evenly arranged on the disc surface of the circular disc body (9).

4. The brake disc with a pin-fin heat dissipation structure according to claim 1, characterized in that: The disk body (1) and the mounting side portion (3) are an integrated structure.

5. The brake disc with a pin-fin heat dissipation structure according to claim 1, characterized in that: The heat dissipation columns (5) are arranged in an 8×12 pattern, the diameter of the heat dissipation columns (5) is 1.5 mm, the spacing between adjacent heat dissipation columns (5) is 0.5 mm, and the height of the heat dissipation columns (5) is 5 mm.

6. The brake disc with a pin-fin heat dissipation structure according to claim 1, characterized in that: The heat dissipation columns (5) are arranged in a 4×6 pattern, the diameter of the heat dissipation columns (5) is 1.5 mm, the spacing between adjacent heat dissipation columns (5) is 2.5 mm, and the height of the heat dissipation columns (5) is 5 mm.

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