Automobile noise reduction brake pad

By incorporating a combination of ceramic friction layer, carbon fiber reinforcement layer, metal sound-absorbing layer and flake graphite heat-conducting layer into the brake pads, along with heat dissipation grooves and ventilation grooves, the noise problem during emergency braking of the brake pads is solved, achieving rapid heat dissipation and noise reduction, and improving driving comfort.

CN223511373UActive Publication Date: 2025-11-04YANCHENG MINGRUI AUTO PARTS CO LTD
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Patent Information

Application Number
CN202422896854.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-11-04
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Existing brake pads generate significant noise during emergency braking, affecting driving comfort and safety.

Method used

The design employs a combination of a ceramic friction layer, a carbon fiber reinforcement layer, a cold-rolled metal sound-absorbing layer, and a flake graphite thermal conductive layer, along with heat dissipation slots, ventilation slots, and cooling fans to achieve rapid heat dissipation and reduce noise.

Benefits of technology

It effectively reduces brake noise, improves brake pad heat dissipation rate, avoids heat fade caused by high temperature, and enhances driving experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223511373U_ABST
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Abstract

The utility model discloses an automobile noise reduction brake pad, and relates to the technical field of brake pads. The brake pad comprises a back plate, the top face of the back plate is fixedly connected with a brake pad body, the surface of the back plate is provided with a first heat conduction assembly used for guiding out heat on the surface of the brake pad body, the surface of the brake pad body is provided with a second heat conduction assembly, and the left side and the right side of the back plate are both fixedly connected with installation lugs. The brake pad body comprises a friction layer, a reinforcing layer is fixedly connected to the bottom of the friction layer, a noise reduction layer is fixedly connected to the bottom of the reinforcing layer, a heat conduction layer is fixedly connected to the bottom of the noise reduction layer, the friction layer is made of ceramic materials, the reinforcing layer is made of carbon fiber materials, and the noise reduction layer is made of metal cold-rolled sheet coated rubber. And in the using process, the effect of conveniently and rapidly dissipating heat of the brake pad is achieved, noise caused by heat fading of the brake pad due to long-time high temperature is avoided, and therefore the driving feeling is improved.
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Description

Technical Field

[0001] This utility model relates to the field of brake pad technology, specifically to a noise-reducing brake pad for automobiles. Background Technology

[0002] With the rapid development of the automotive industry and people's increasing emphasis on driving safety, the technology of automotive components is constantly innovating and improving. Brake pads, as one of the key components of the automotive braking system, play a crucial role in driving safety. In traditional driving, automotive braking mainly relies on the friction between the brake pads and brake discs (brake rotors) and between the tires and the ground to decelerate the vehicle until it comes to a stop. Therefore, the performance of the brake pads directly affects the efficiency and reliability of the entire braking system.

[0003] Although existing brake pads offer a certain level of assurance in terms of braking system performance, the following problems have been found in actual use: during emergency braking, the friction between the brake pads and the brake disc or tires generates significant noise, affecting driving comfort and safety.

[0004] Therefore, a noise-reducing brake pad for automobiles is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a noise-reducing brake pad for automobiles in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A noise-reducing brake pad for automobiles includes a backplate, a brake pad body fixedly connected to the top surface of the backplate, a first heat-conducting component for dissipating heat from the surface of the brake pad body provided on the surface of the backplate, a second heat-conducting component provided on the surface of the brake pad body, mounting ears fixedly connected to both the left and right sides of the backplate, the brake pad body including a friction layer, a reinforcing layer fixedly connected to the bottom of the friction layer, a sound-absorbing layer fixedly connected to the bottom of the reinforcing layer, and a heat-conducting layer fixedly connected to the bottom of the sound-absorbing layer.

[0008] Furthermore, the friction layer is made of ceramic, the reinforcement layer is made of carbon fiber, the sound-absorbing layer is made of cold-rolled metal plate coated with rubber, and the heat-conducting layer is made of flake graphite.

[0009] Furthermore, the first heat-conducting component includes a heat dissipation groove, which is formed through the top surface of the back plate. A mounting cover is fixedly connected to the bottom surface of the back plate, and a cooling fan is provided at the bottom of the mounting cover.

[0010] Furthermore, the second heat-conducting component includes a ventilation slot, which is formed on the top surface of the brake pad body, and the surface of the back plate is provided with longitudinal heat-conducting holes.

[0011] Furthermore, the bottom of the inner wall of the ventilation groove is inclined, and the depth of the ventilation groove near the center of the brake pad body is lower than the depth away from the center of the brake pad body.

[0012] The beneficial effects of this utility model are as follows:

[0013] The backplate is fixed to the caliper by mounting ears. The friction between the brake pad body and the brake pad achieves braking and deceleration of the vehicle. The brake pad body can reduce braking noise. The first and second heat conduction components can accelerate the heat dissipation rate of the brake pad body. In use, it can facilitate rapid heat dissipation of the brake pads and avoid the noise caused by brake pad thermal fade due to prolonged high temperature, thereby improving the driving experience. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a top sectional view of the structure of this utility model;

[0016] Figure 3 This is a bottom view of the structure of this utility model;

[0017] Figure 4 This is a cross-sectional view of the main structure of the brake pad of this utility model;

[0018] Reference numerals: 1. Backplate; 2. Brake pad body; 201. Friction layer; 202. Reinforcing layer; 203. Noise-absorbing layer; 204. Heat-conducting layer; 3. First heat-conducting component; 301. Heat dissipation groove; 302. Mounting cover; 303. Heat dissipation fan; 4. Mounting ear; 5. Ventilation groove; 6. Heat-conducting hole. Detailed Implementation

[0019] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] like Figures 1 to 4 As shown, a noise-reducing brake pad for automobiles includes a back plate 1. A brake pad body 2 is fixedly connected to the top surface of the back plate 1. A first heat-conducting component 3 for dissipating heat from the surface of the brake pad body 2 is provided on the surface of the back plate 1, and a second heat-conducting component is provided on the surface of the brake pad body 2. Mounting ears 4 are fixedly connected to both the left and right sides of the back plate 1. More specifically, the back plate 1 is fixed to the caliper via the mounting ears 4. The friction between the brake pad body 2 and the brake pad achieves braking and deceleration of the vehicle. The brake pad body 2 can reduce braking noise, and the first and second heat-conducting components can accelerate the heat dissipation rate of the brake pad body 2.

[0024] The brake pad body 2 includes a friction layer 201, a reinforcing layer 202 fixedly connected to the bottom of the friction layer 201, a noise-absorbing layer 203 fixedly connected to the bottom of the reinforcing layer 202, and a heat-conducting layer 204 fixedly connected to the bottom of the noise-absorbing layer 203. It should be noted that the friction layer 201 rubs against the brake disc to achieve the function of deceleration and braking; the reinforcing layer 202 provides stronger support and increases the strength of the brake pad; the noise-absorbing layer 203 reduces braking noise; and the heat-conducting layer 204 transfers frictional heat and accelerates heat dissipation.

[0025] The friction layer 201 is made of ceramic, the reinforcement layer 202 is made of carbon fiber, the sound-absorbing layer 203 is made of cold-rolled metal sheet coated with rubber, and the heat-conducting layer 204 is made of flake graphite. More specifically, the ceramic friction layer 201 provides good heat dissipation and low noise; the carbon fiber reinforced composite material can improve the high-temperature resistance and vibration damping effect of the brake pads, thus achieving a noise reduction effect; the sound-absorbing layer 203 provides additional elastic support, allowing the brake pads to make better contact with the brake disc while absorbing noise; and the flake graphite material has good thermal conductivity, which can quickly dissipate the heat generated by friction and reduce the operating temperature of the brake pads.

[0026] The first heat-conducting component 3 includes a heat dissipation groove 301, which extends through the top surface of the back plate 1. A mounting cover 302 is fixedly connected to the bottom surface of the back plate 1, and a cooling fan 303 is provided at the bottom of the mounting cover 302. It should be noted that the heat dissipation groove 301 facilitates the downward conduction of heat generated by the friction of the brake pad body 2. The cooling fan 303 accelerates airflow, thereby speeding up heat dissipation.

[0027] The second heat-conducting component includes a ventilation slot 5, which is located on the top surface of the brake pad body 2. A heat-conducting hole 6 is longitudinally formed on the surface of the back plate 1. More specifically, by providing the ventilation slot 5, the surface area of ​​the brake pad body 2 is further increased, accelerating the heat dissipation rate of the brake pad body 2. Furthermore, by providing the heat-conducting hole 6, the surface area of ​​the back plate 1 is increased, improving the heat dissipation effect.

[0028] The bottom of the inner wall of the ventilation slot 5 is inclined, and the depth of the ventilation slot 5 near the center of the brake pad body 2 is lower than the depth away from the center of the brake pad body 2. It should be noted that by setting the ventilation slot 5 at an incline, the external air blowing towards the center of the brake pad body 2 is accelerated during vehicle operation, thereby increasing the wind speed and facilitating the blowing away of powder generated by friction on the surface of the brake pad body 2.

[0029] In summary: By fixing the backplate 1 to the caliper through the mounting ear 4, the friction between the brake pad body 2 and the brake pad is used to brake and decelerate the vehicle. The brake pad body 2 can reduce braking noise. The first heat conduction component 3 and the second heat conduction component can accelerate the heat dissipation rate of the brake pad body 2. In use, it can facilitate the rapid heat dissipation of the brake pads, avoid the noise caused by the brake pads' thermal fade due to prolonged high temperature, and thus improve the driving experience.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A type of automotive noise-reducing brake pad, characterized in that, The back plate (1) is fixedly connected to the top surface of the back plate (1), and a first heat-conducting component (3) for dissipating heat from the surface of the brake pad body (2) is provided on the surface of the back plate (1). A second heat-conducting component is provided on the surface of the brake pad body (2). Mounting ears (4) are fixedly connected to both the left and right sides of the back plate (1). The brake pad body (2) includes a friction layer (201), a reinforcing layer (202) is fixedly connected to the bottom of the friction layer (201), a sound-absorbing layer (203) is fixedly connected to the bottom of the reinforcing layer (202), and a heat-conducting layer (204) is fixedly connected to the bottom of the sound-absorbing layer (203).

2. The automotive noise-reducing brake pad according to claim 1, characterized in that, The friction layer (201) is made of ceramic, the reinforcement layer (202) is made of carbon fiber, the sound-absorbing layer (203) is made of cold-rolled metal plate coated with rubber, and the heat-conducting layer (204) is made of flake graphite.

3. The automotive noise-reducing brake pad according to claim 1, characterized in that, The first heat-conducting component (3) includes a heat dissipation groove (301), and the heat dissipation groove (301) is opened through the top surface of the back plate (1). The bottom surface of the back plate (1) is fixedly connected to a mounting cover (302), and a heat dissipation fan (303) is provided at the bottom of the mounting cover (302).

4. The automotive noise-reducing brake pad according to claim 1, characterized in that, The second heat-conducting component includes a ventilation groove (5), and the ventilation groove (5) is opened on the top surface of the brake pad body (2), and the back plate (1) has a heat-conducting hole (6) longitudinally opened on the surface.

5. The automotive noise-reducing brake pad according to claim 4, characterized in that, The bottom of the inner wall of the ventilation groove (5) is inclined, and the depth of the ventilation groove (5) near the center of the brake pad body (2) is lower than the depth away from the center of the brake pad body (2).