Porous heat dissipation type automobile brake pad

Abstract

The utility model discloses a porous heat dissipation type automobile brake pad, which belongs to the field of automobile brake pads and comprises a friction material layer, a plurality of inclined holes are arranged on the front surface of the friction material layer, a plurality of vertical through holes are arranged at the top and the bottom of the friction material layer, the vertical through holes are communicated with the inclined holes, and a plurality of transverse through holes are transversely arranged on the friction material layer. A plurality of inclined holes are formed in the front face of the friction material layer, a plurality of transverse through holes are formed in the front face of the friction material layer and communicated with the inclined holes, a plurality of through grooves are formed in the rear portion of the friction material layer, a transition layer is fixedly installed on the rear side of the friction material layer, a back plate is fixedly installed on the rear side of the transition layer, the through grooves are located on the rear portions of the inclined holes, and honeycomb holes are formed in the circumferential portion of the transition layer. The inclined holes are communicated with the multiple vertical through holes and the multiple transverse through holes, the heat dissipation effect of the friction material layer can be improved, the honeycomb holes of the transition layer are matched, good heat dissipation is achieved, good braking performance is kept, the through grooves are communicated with the inclined holes, powder generated by friction can fall off, and braking is prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of automotive brake pads, and in particular to a porous heat dissipation type automotive brake pad. 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 for a long time, especially on long downhill sections, the brake pads are used frequently. The brake pads generate a lot of heat. During continuous braking, the temperature of the friction surface can reach 500-700℃, which can easily cause heat fade and brake failure. Moreover, the solid structure has low heat dissipation efficiency, and the high temperature causes the coefficient of friction to decrease by 20-30%. Utility Model Content

[0004] Purpose of the invention: The purpose of this utility model is to provide a porous heat dissipation type automotive brake pad.

[0005] Technical solution: Includes a friction material layer, with multiple oblique holes on the front side of the friction material layer, multiple vertical through holes on the top and bottom of the friction material layer, which are connected to the oblique holes, multiple horizontal through holes on the side of the friction material layer, which are connected to the oblique holes, multiple through grooves on the rear of the friction material layer, a transition layer fixedly installed on the rear side of the friction material layer, a back plate fixedly installed on the rear side of the transition layer, the through grooves being located behind the oblique holes, honeycomb holes on the circumference of the transition layer, a serrated connection between the friction material layer and the transition layer, and a serrated connection between the transition layer and the back plate.

[0006] By adopting the above technical solution, multiple oblique holes are provided on the front side of the friction material layer. The oblique holes are connected to multiple vertical through holes and multiple horizontal through holes, which can improve the heat dissipation effect of the friction material layer. Combined with the honeycomb holes of the transition layer, good heat dissipation is achieved, and good braking performance is maintained. The through grooves are connected to the oblique holes, which can make the powder rubbed off fall off and avoid affecting the braking.

[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 oblique hole is a hexagonal through hole with a diameter of 0.1-0.3 mm. The hole axis is inclined at an angle of 8° to 15° to the normal of the friction material layer, and the oblique hole occupies 3-8% of the volume.

[0010] By adopting the above technical solution, the oblique hole is used to allow the powder that is rubbed off to slide off, thus preventing the powder from affecting the brake.

[0011] Optionally, the vertical and horizontal through holes are circular through holes with a diameter of 0.5-1 mm, and both the vertical and horizontal through holes are arranged in a single row.

[0012] By adopting the above technical solution, the vertical and horizontal through holes can allow air to circulate and carry away the heat from the brake pads.

[0013] 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).

[0014] 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.

[0015] 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.

[0016] 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.

[0017] Optionally, the back of the backplate is provided with multiple heat dissipation slots, the cross-section of which is triangular.

[0018] By adopting the above technical solution, the heat dissipation groove is used for heat dissipation of the back plate, thereby achieving brake protection.

[0019] 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.

[0020] By adopting the above technical solution, the fixing slot is used to insert the component, thereby fixing the back plate.

[0021] Beneficial effects: This utility model has multiple oblique holes on the front side of the friction material layer, which are connected to multiple vertical through holes and multiple horizontal through holes. This can improve the heat dissipation effect of the friction material layer. Combined with the honeycomb holes of the transition layer, it can achieve good heat dissipation and maintain good braking performance. The through grooves are connected to the oblique holes, which can make the powder rubbed off fall off and avoid affecting the braking. 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 structural diagram of the back plate of an embodiment of the present utility model;

[0027] Explanation of reference numerals in the attached diagram: 1. Friction material layer; 2. Transition layer; 3. Back plate; 4. Connecting piece; 5. Fixing slot; 6. Angled hole; 7. Vertical through hole; 8. Horizontal through hole; 9. Through groove; 10. Honeycomb hole; 11. Heat dissipation groove. Detailed Implementation

[0028] 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 5 The system includes a friction material layer 1, with multiple oblique holes 6 on the front side, multiple vertical through holes 7 on the top and bottom, which communicate with the oblique holes 6, multiple horizontal through holes 8 on the side, which communicate with the oblique holes 6, multiple through grooves 9 on the rear side of the friction material layer 1, a transition layer 2 fixedly installed on the rear side of the friction material layer 1, and a back plate 3 fixedly installed on the rear side of the transition layer 2. The through grooves 9 are located behind the oblique holes 6, and honeycomb holes 10 are provided on the circumference of the transition layer 2. The present invention provides multiple oblique holes 6 on the front side of the friction material layer 1, which communicate with the multiple vertical through holes 7 and the multiple horizontal through holes 8, which can improve the heat dissipation effect of the friction material layer. Combined with the honeycomb holes 10 of the transition layer 2, good heat dissipation is achieved, maintaining good braking performance. The through grooves 9 communicate with the oblique holes 6, which can allow the friction powder to fall off and avoid affecting the braking.

[0029] 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.

[0030] The oblique hole 6 is a hexagonal through hole with a diameter of 0.1-0.3 mm. The hole axis is inclined at an angle of 8° to 15° to the normal of the friction material layer 1. The oblique hole 6 is used to allow the powder that is rubbed off to slide off, so as to prevent the powder from affecting the brake.

[0031] The vertical through hole 7 and the horizontal through hole 8 are circular through holes with a diameter of 0.5-1 mm. The vertical through hole 7 and the horizontal through hole 8 allow air to circulate and carry away the heat from the brake pads.

[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] The back of the backplate 3 is provided with multiple heat dissipation slots 11, which are used for heat dissipation of the backplate 3 to achieve brake protection.

[0035] A fixing slot 5 is provided in the middle of the connecting piece 4. The middle part of the fixing slot 5 is lower than the two ends. The fixing slot 4 is used to insert the component and fix the back plate.

[0036] The implementation principle of a porous heat dissipation type automotive brake pad in this application embodiment is as follows: When using a porous heat dissipation type automotive brake pad, the connecting piece 4 is installed on the brake part to realize the installation of the brake disc. The friction material layer 1 contacts the brake disc to realize braking. The heat generated by the friction material layer 1 and the brake disc is dissipated through multiple oblique holes 6. Some of the heat is conducted away through multiple vertical through holes 7 and multiple horizontal through holes 8. Some of the heat is dissipated by the friction material layer 1 itself, and the other part of the heat is dissipated through the transition layer 2 and the back plate 3 to realize the porous heat dissipation of the brake disc.

[0037] 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 porous heat dissipating automobile brake pad, characterized by: The friction material layer (1) includes a friction material layer (1) with multiple oblique holes (6) on its front side, multiple vertical through holes (7) on its top and bottom, which are connected to the oblique holes (6), multiple horizontal through holes (8) on its side, which are connected to the oblique holes (6), multiple through grooves (9) on its rear side, 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), the through grooves (9) being located behind the oblique holes (6), and honeycomb holes (10) on the circumference of the transition layer (2).

2. The porous heat radiating automobile brake pad as claimed in 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 porous heat radiating automobile brake pad as claimed in claim 1, wherein: The oblique hole (6) is a hexagonal through hole with a diameter of 0.1-0.3 mm. The hole axis is inclined at an angle of 8° to 15° to the normal of the friction material layer (1).

4. The porous heat radiating automobile brake pad as claimed in claim 1, wherein: The vertical through hole (7) and the horizontal through hole (8) are circular through holes with a diameter of 0.5-1 mm.

5. The porous heat radiating automotive 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.

6. The porous heat radiating automotive 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.

7. The porous heat radiating automotive brake pad of claim 1 wherein: The back of the back plate (3) is provided with multiple heat dissipation slots (11).

8. The porous heat radiating automotive brake pad of claim 6 wherein: The connecting piece (4) is provided with a fixing position (5) in the middle, and the middle of the fixing position (5) is lower than the two ends.

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