Automobile brake pad facilitating rapid heat dissipation
By setting horizontal and vertical grooves on the outside of the friction material layer, and combining composite materials and multi-layer transition layers, the problem of low heat dissipation efficiency of traditional brake pads is solved, achieving efficient heat dissipation and stable braking performance, and improving safety in use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional car brake pads have low heat dissipation efficiency when used frequently, leading to thermal fade, which affects braking performance and poses safety hazards.
Multiple horizontal and vertical grooves are arranged on the outer side of the friction material layer, staggered and equipped with heat dissipation holes and through holes, combined with composite materials and multi-layer transition layers to enhance air circulation and heat dissipation.
It improves the heat dissipation efficiency of brake pads, reduces heat fade, maintains braking stability and safety, and extends service life.
Smart Images

Figure CN224135051U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive brake pads, and in particular to an automotive brake pad that facilitates rapid heat dissipation. Background Technology
[0002] Automotive brake pads refer to the friction material fixed on the brake drum or brake disc that rotates with the wheel. The friction lining and friction pad blocks bear external pressure and generate friction to achieve the purpose of vehicle deceleration. They are generally composed of steel plates, adhesive heat insulation layers and friction blocks.
[0003] When a car is driving downhill, the brake pads are used frequently, which generates a lot of heat. Because of the excessive heat, the braking performance of the brake pads will decrease. During continuous braking, the temperature of the friction material can reach more than 500 degrees Celsius, leading to thermal fade and even dangerous situations. Traditional brake pads rely on the metal backplate for heat dissipation, which has low heat dissipation efficiency. Moreover, the existing heat dissipation groove design is simple and has poor airflow guidance. Utility Model Content
[0004] Purpose of the invention: The purpose of this utility model is to provide an automotive brake pad that facilitates rapid heat dissipation.
[0005] Technical solution: Includes a friction material layer, a transition layer fixedly installed on the back of the friction material layer, a back plate fixedly installed on the back of the transition layer, multiple horizontal grooves and multiple vertical grooves are provided on the outer side of the friction material layer, the multiple horizontal grooves and multiple vertical grooves are arranged alternately, heat dissipation holes are installed at the intersection of the multiple horizontal grooves and multiple vertical grooves, the multiple heat dissipation holes are arranged in an array, and a row of through holes is installed at both ends of the friction material layer, the through holes correspond to the horizontal grooves, the width of the multiple horizontal grooves and multiple vertical grooves is 2 mm, and the diameter of the heat dissipation holes is 2 mm.
[0006] By adopting the above technical solution, multiple horizontal grooves and multiple vertical grooves are provided on the outer side of the friction material layer. The multiple horizontal grooves and multiple vertical grooves can increase the contact area with air, accelerate heat dissipation, and improve the air circulation, thereby improving the heat dissipation effect, reducing heat fade, improving heat dissipation efficiency, maintaining brake stability, and improving safety in use.
[0007] Optionally, the friction material layer is made of composite materials, including copper fiber materials and ceramic materials. The friction material layer is 7 mm thick, with 8% copper fiber material and 15% ceramic material. The surface of the friction material layer is covered with a laser micro-clad hard phase.
[0008] By adopting the above technical solution, the friction material layer is a composite material, which can improve wear resistance and extend service life.
[0009] Optionally, the transition layer is provided with multiple circular holes arranged in an array, the circular holes corresponding to the heat dissipation holes, and the diameter of the circular holes is 2 mm.
[0010] By adopting the above technical solution, the circular holes are used for air circulation to achieve heat dissipation.
[0011] Optionally, the transition layer is a double-layer composite layer, comprising an aluminum foam layer and a graphene material layer. The aluminum foam layer has a thickness of 4 mm, the graphene material layer has a thickness of 2.5 mm, the porosity of the aluminum foam layer is 38%, and the thermal conductivity of the graphene material layer is ≥580 W / (m·K).
[0012] By adopting the above technical solution, the transition layer is used to connect the back plate and the friction material layer, and at the same time, it is used for heat dissipation.
[0013] Optionally, connecting pieces are fixedly installed at both ends of the back panel. The back panel is 5 mm thick and the connecting pieces and the back panel are an integral structure.
[0014] By adopting the above technical solution, the connecting piece is used to install on the vehicle, so that the backplate can be installed on the vehicle, thereby realizing the installation of brake pads.
[0015] Optionally, a fixing slot is provided in the middle of the connecting piece, and the middle of the fixing slot is lower than the two ends.
[0016] By adopting the above technical solution, the fixing slot is used to insert the component, thereby fixing the back plate.
[0017] Optionally, the back panel is provided with multiple ventilation holes arranged in an array, with each ventilation hole corresponding to a round hole, and the diameter of the ventilation hole is 2 mm.
[0018] By adopting the above technical solution, the vent holes are used for air circulation to achieve heat dissipation of the brake pads.
[0019] Optionally, the outer side of the vent is chamfered.
[0020] By adopting the above technical solution, the chamfer is used to increase the contact area with air and accelerate heat dissipation.
[0021] Beneficial effects: This utility model has multiple horizontal and vertical grooves on the outer side of the friction material layer. The multiple horizontal and vertical grooves can increase the contact area with air, accelerate heat dissipation, and the heat dissipation holes and through holes are used to improve air circulation, improve the heat dissipation effect, reduce heat fade, improve heat dissipation efficiency, maintain brake stability, and improve safety in use. Attached Figure Description
[0022] Figure 1 This is an overall structural diagram of an embodiment of the present utility model;
[0023] Figure 2 This is a front structural view of the friction material layer according to an embodiment of the present invention;
[0024] Figure 3 This is a structural diagram of the back side of the friction material layer according to an embodiment of the present invention;
[0025] Figure 4 This is a structural diagram of the transition layer according to an embodiment of the present invention;
[0026] Figure 5 This is a front structural view of the back plate of an embodiment of the present utility model;
[0027] Figure 6 This is a back structural diagram of the back plate according to an embodiment of the present utility model;
[0028] Explanation of reference numerals in the attached diagram: 1. Friction material layer; 2. Transition layer; 3. Back plate; 4. Connecting piece; 5. Vertical groove; 6. Horizontal groove; 7. Heat dissipation hole; 8. Through hole; 9. Round hole; 10. Ventilation hole; 11. Fixing position; 12. Chamfer. Detailed Implementation
[0029] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, such as... Figures 1 to 6 The system includes a friction material layer 1, a transition layer 2 fixedly installed on the rear side of the friction material layer 1, a back plate 3 fixedly installed on the rear side of the transition layer 2, multiple horizontal grooves 6 and multiple vertical grooves 5 on the outer side of the friction material layer 1, which are arranged alternately, and heat dissipation holes 7 are installed at the intersection points of the multiple horizontal grooves 6 and vertical grooves 5, which are arranged in an array. A row of through holes 8 is installed at each end of the friction material layer 1, and the through holes 8 correspond to the horizontal grooves 6. The multiple horizontal grooves 6 and multiple vertical grooves 5 on the outer side of the friction material layer 1 can increase the contact area with air and accelerate heat dissipation. The heat dissipation holes 7 and through holes 8 are used to improve air circulation, improve the heat dissipation effect, reduce heat fade, improve heat dissipation efficiency, maintain brake stability, and improve safety during use.
[0030] The friction material layer 1 is made of composite materials, including copper fiber materials and ceramic materials. The friction material layer 1 is 7 mm thick. As a composite material, the friction material layer can improve wear resistance and extend service life.
[0031] The transition layer 2 is provided with multiple circular holes 9, which are arranged in an array. The circular holes 9 correspond to the heat dissipation holes 7 and are used for air circulation to achieve heat dissipation.
[0032] The transition layer 2 is a double-layer composite layer, consisting of an aluminum foam layer and a graphene material layer. The aluminum foam layer is 4 mm thick, and the graphene material layer is 2.5 mm thick. The transition layer 2 is used to connect the back plate 3 and the friction material layer 1, and also for heat dissipation.
[0033] Connecting pieces 4 are fixedly installed at both ends of the back plate 3. The back plate 3 is 5 mm thick. The connecting pieces 4 are used to install the back plate on the vehicle so that the brake pads can be installed.
[0034] A fixing slot 11 is provided in the middle of the connecting piece 4. The middle part of the fixing slot 11 is lower than the two ends. The fixing slot 4 is used to insert the component and fix the back plate.
[0035] The back plate 3 is provided with multiple ventilation holes 10, which are arranged in an array. The ventilation holes 10 correspond to the round holes 9. The ventilation holes 10 are used for air circulation to achieve heat dissipation of the brake pads.
[0036] The outer side of the vent 10 is provided with a chamfer 12, which is used to increase the contact area with air and accelerate heat dissipation.
[0037] The implementation principle of a car brake pad that facilitates rapid heat dissipation in this application embodiment is as follows: When using a car brake pad that facilitates rapid heat dissipation, the back plate 3 is installed near the brake disc through the fixed connecting piece 4, thereby realizing the installation of the brake disc. The friction material layer 1 contacts the brake disc to achieve braking. The heat generated by the friction material layer 1 is dissipated through multiple horizontal grooves 6 and multiple vertical grooves 5. The heat dissipation holes 7, round holes 9, and vent holes 10 allow for the flow of air in the direction of vehicle travel into the horizontal grooves 6, thereby achieving the heat dissipation of the brake disc.
[0038] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.
Claims
1. A type of automotive brake pad that facilitates rapid heat dissipation, characterized in that: The system includes a friction material layer (1), a transition layer (2) fixedly installed on the rear side of the friction material layer (1), a back plate (3) fixedly installed on the rear side of the transition layer (2), a plurality of horizontal grooves (6) and a plurality of vertical grooves (5) are provided on the outer side of the friction material layer (1), the plurality of horizontal grooves (6) and vertical grooves (5) are arranged in an alternating manner, heat dissipation holes (7) are installed at the intersection points of the plurality of horizontal grooves (6) and vertical grooves (5), the plurality of heat dissipation holes (7) are arranged in an array, and a row of through holes (8) is installed at both ends of the friction material layer (1), the through holes (8) corresponding to the horizontal grooves (6).
2. The automobile brake pad of claim 1, wherein: The friction material layer (1) is made of composite material, including copper fiber material and ceramic material, and the thickness of the friction material layer (1) is 7 mm.
3. The automobile brake pad of claim 1, wherein: The transition layer (2) is provided with a plurality of circular holes (9), which are arranged in an array and correspond to the heat dissipation holes (7).
4. The automobile brake pad of claim 1, wherein: The transition layer (2) is a double-layer composite layer, which includes an aluminum foam layer and a graphene material layer. The aluminum foam layer has a thickness of 4 mm and the graphene material layer has a thickness of 2.5 mm.
5. The automobile brake pad of claim 1, wherein: The back plate (3) has connecting pieces (4) fixedly installed at both ends, and the thickness of the back plate (3) is 5 mm.
6. The automobile brake pad of claim 5, wherein: The connecting piece (4) is provided with a fixing slot (11) in the middle, and the middle of the fixing slot (11) is lower than the two ends.
7. The automobile brake pad of claim 3, wherein: The back plate (3) is provided with a plurality of ventilation holes (10), which are arranged in an array and correspond to the round holes (9).
8. The automotive brake pad for rapid heat dissipation according to claim 7, characterized in that: The outer side of the vent (10) is provided with a chamfer (12).