Brake disc with drainage function

By incorporating blind holes and strip holes within the brake disc, combined with a negative pressure design for gas flow, the problem of water film on the brake disc in rainy weather is solved, achieving efficient water drainage and enhanced braking force.

CN224283293UActive Publication Date: 2026-05-26SHANDONG DOUBLE LINK BRAKE MATERIAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG DOUBLE LINK BRAKE MATERIAL
Filing Date
2025-08-22
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional brake discs are prone to forming a water film when driving in the rain, which reduces braking friction. Furthermore, creating grooves directly on the brake disc can cause water to slide onto the brake pads, affecting braking performance.

Method used

Design a brake disc with blind holes and strip holes inside. The blind holes are evenly distributed around the circumference of the brake disc, and one end of the strip hole is perpendicular to the blind hole and the other end extends out of the outer ring surface of the disc for water to be thrown out. Combined with the air flow, negative pressure is generated to enhance the drainage effect.

Benefits of technology

It effectively drains water from between the brake pads and the disc, improves braking performance, prevents water film formation, and ensures stable braking force.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224283293U_ABST
    Figure CN224283293U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of brake discs, in particular to a brake disc with a drainage function, which comprises a disc body of the brake disc, blind holes are arranged in the disc body, the blind holes are uniformly distributed along the circumference of the brake disc, brake pads are positioned on rotating tracks of the blind holes, a plurality of strip-shaped holes are arranged on the brake disc, and the strip-shaped holes are communicated with the brake pads. And one end of the strip-shaped hole penetrates through the blind hole and is vertical and communicated with the blind hole, and the other end penetrates out of the outer ring surface of the brake disc and is communicated with the outside. According to the brake disc, through cooperation of the blind holes and the strip-shaped holes, water located between the brake pad and the disc body can be discharged through the blind holes and the strip-shaped holes, meanwhile, negative pressure can be generated through gas flowing, and water flow can be discharged more conveniently.
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Description

Technical Field

[0001] This utility model belongs to the field of brake disc technology, specifically a brake disc with drainage function. 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 force; when you press the brake pedal, it's the caliper that clamps the brake disc to slow down or stop the car.

[0003] Traditional brake discs are prone to forming a water film on their surface when driving in the rain, which leads to a decrease in braking friction ("water fade") and affects the normal use of the brake disc. If grooves are directly made on the brake disc, water on the brake disc that is outside the brake pad track can also easily slide along the grooves to the brake pad, affecting its braking performance. Utility Model Content

[0004] This invention provides a brake disc with drainage function to overcome the deficiencies in the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] A brake disc with drainage function includes a disc body, wherein blind holes are formed in the disc body and are evenly distributed along the circumference of the brake disc. The brake pads are located on the rotation trajectory of the blind holes. Several strip holes are formed on the brake disc, one end of which passes through the blind holes and is perpendicular to and communicates with the blind holes, and the other end passes through the outer circumference of the brake disc and communicates with the outside.

[0007] When this application is in use, since the brake pads can contact the brake disc, when there is water on the brake pads or the disc, the brake pads can push the water through the blind hole into the strip hole. Since one end of the strip hole passes through the blind hole and is perpendicular to and connected to the blind hole, and the other end passes through the outer ring surface of the brake disc and is connected to the outside, the water can be thrown out under the action of centrifugal force, thereby achieving the effect of drainage.

[0008] Preferably, the strip-shaped hole has an arc-shaped structure and bends in the opposite direction of the brake disc rotation, so that the strip-shaped through hole can better conform to the movement trajectory of the water being thrown out, thus achieving better water throwing out.

[0009] Preferably, the outer ring surface of the disc body is provided with a strip-shaped through hole, the inner end face of which extends to the water outlet end of the strip-shaped hole, and the outer end of which is located in front of the strip-shaped hole along the trajectory line of the disc body. When the disc body rotates, it can drive the strip-shaped through hole to take in air, so that the gas enters from the outer end of the strip-shaped through hole and is discharged from the inner end, thereby forming a negative pressure at the inner end. Since the inner end is located at the water outlet end of the strip-shaped hole, a negative pressure is formed at the water outlet end of the strip-shaped hole, which can better discharge water.

[0010] Preferably, the outer end of the strip-shaped through hole is a flared funnel-shaped structure, which can achieve better air intake and thus enable a stronger negative pressure to be formed at the water outlet of the strip-shaped hole, which is conducive to the discharge of water.

[0011] Preferably, the outer ring surface of the disc body has a notch. The notch extends from the outer end of the strip hole along the extension direction of the strip hole to the outer ring surface of the disc body. The notch can make the air venting smoother, thereby increasing the negative pressure and facilitating the drainage of water.

[0012] The beneficial effects of this utility model are as follows: The use of this application not only allows water located between the brake pad and the disc to be discharged through the blind hole and the strip hole by the cooperation of the blind hole and the strip hole, but also allows the negative pressure generated by the gas flow to make the water flow more convenient to be discharged. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of 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 based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] As shown in the figure:

[0016] 1. Disc body, 2. Blind hole, 3. Strip hole, 4. Strip through hole, 5. Trumpet mouth, 6. Notch. Detailed Implementation

[0017] 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.

[0018] A brake disc with drainage function, such as Figure 1As shown, the brake disc includes a disc body 1. Blind holes 2 are formed inside the disc body 1. The blind holes 2 are evenly distributed along the circumference of the brake disc. The brake pads are located on the rotation trajectory of the blind holes 2. Several strip holes 3 are formed on the brake disc. One end of the strip hole 3 passes through the blind hole 2 and is perpendicular to and communicates with the blind hole 2. Multiple blind holes 2 are provided on each strip hole 3, and all blind holes 2 communicate with the strip hole 3. The other end of the blind hole 2 passes through the outer ring surface of the brake disc and communicates with the outside.

[0019] When this application is in use, since the brake pads can contact the brake disc body 1, when there is water on the brake pads or disc body 1, the brake pads can push the water through the blind hole 2 into the strip hole 3. Since one end of the strip hole 3 passes through the blind hole 2 and is perpendicular to and connected to the blind hole 2, and the other end passes through the outer ring surface of the brake disc and is connected to the outside, the water can be thrown out under the action of centrifugal force, thereby achieving the effect of drainage.

[0020] The strip-shaped hole 3 has an arc-shaped structure and bends in the opposite direction of the brake disc rotation, so that the strip-shaped through hole 4 can better match the trajectory of the water being thrown out, thus achieving better water throwing out.

[0021] The outer ring surface of the disc body 1 is provided with a strip-shaped through hole 4. The inner end face of the strip-shaped through hole 4 extends to the water outlet end of the strip-shaped hole 3. The outer end of the strip-shaped through hole 4 is located in front of the strip-shaped hole 3 along the trajectory line of the disc body 1. When the disc body 1 rotates, it can drive the strip-shaped through hole 4 to take in air. Thus, the gas enters from the outer end of the strip-shaped through hole 4 and is discharged from the inner end, thereby forming a negative pressure at the inner end. Since the inner end is located at the water outlet end of the strip-shaped hole 3, a negative pressure is formed at the water outlet end of the strip-shaped hole 3, which can better discharge water.

[0022] The outer end of the strip-shaped through hole 4 is a flared funnel-shaped structure 5, which enables better air intake and allows the water outlet end of the strip-shaped hole 3 to form a stronger negative pressure, which is beneficial for water discharge.

[0023] The outer ring surface of the disc body 1 is provided with a notch 6. The notch 6 extends from the outer end of the strip hole 3 along the extension direction of the strip through hole 4 and extends to the outer ring surface of the disc body 1. The notch 6 can make the exhaust more smooth, thereby increasing the negative pressure and facilitating the discharge of water.

[0024] The use of this application not only allows water located between the brake pad and the disc 1 to be discharged through the blind hole 2 and the strip hole 3 by the cooperation of the blind hole 2 and the strip hole 3, but also allows the negative pressure generated by the gas flow to make the water flow more convenient to be discharged.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A brake disc having a drainage function, characterized by: The brake disc includes a disc body with blind holes evenly distributed around its circumference. The brake pads are located on the rotation trajectory of the blind holes. The brake disc has several strip holes, one end of which passes through the blind holes and is perpendicular to and connected to them, and the other end of which passes through the outer circumference of the brake disc and is connected to the outside.

2. The brake disc having a water drainage function according to claim 1, characterized in that: The strip hole has an arc-shaped structure and bends in the opposite direction of the brake disc's rotation.

3. The brake disc with water drainage function according to claim 2, characterized in that: The outer ring surface of the disc is provided with a strip-shaped through hole, the inner end face of the strip-shaped through hole extends to the water outlet end of the strip-shaped hole, and the outer end of the strip-shaped through hole is located in front of the strip-shaped hole along the trajectory line of the disc.

4. The brake disc with water drainage function according to claim 3, characterized in that: The outer end of the strip-shaped through hole has an outward-flaring trumpet-shaped structure.

5. The brake disc with water drainage function according to claim 4, characterized in that: The outer ring surface of the disc has a notch that extends from the outer end of the strip hole along the extension direction of the strip hole to the outer ring surface of the disc.