Brake noise reduction friction plate, brake and automobile

Abstract

The utility model relates to the technical field of automobile braking, in particular to a brake noise reduction friction plate, a brake and an automobile. A brake noise reduction friction plate comprises a friction block, a heat insulation block, a steel backing and a noise reduction piece. The friction block, the heat insulation block, the steel backing and the silencing piece are sequentially connected in the first direction. According to the utility model, the friction block is equivalent to a friction plate in the prior art, on the basis of the prior art, the heat insulation block, the steel backing and the silencing sheet are sequentially arranged on one side of the friction block, noise and vibration generated between the friction block and the brake disc are transmitted to the steel backing through the heat insulation block, are weakened once, and then are transmitted to the silencing sheet from the steel backing; therefore, the noise and vibration transmitted from the friction plate to a vehicle body are effectively weakened; after the noise and the vibration which are weakened twice are transmitted to the vehicle body, the noise and the vibration caused to the vehicle body are very small, and the driving comfort of a driver can also be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile brake, especially relates to a brake noise reduction friction plate, brake, automobile. BACKGROUND

[0002] The automobile friction plate mainly functions in the disc brake to generate friction force between the brake disc to provide braking force during braking, and transmits the force to the tire to make the tire rub against the ground to realize the braking effect. In addition, the friction plate also bears the function of heat dissipation to prevent the braking force from decaying due to overheating. Moreover, after a long time of driving, the brake often produces braking noise.

[0003] Now, with the implementation of regulations and the increasing requirements of users on automobile braking, the users not only pursue safety and stability, but also comfort. Comfort includes stable braking, good damping effect, low noise, etc.

[0004] Among them, the car owner often cares most about the noise and vibration of the brake pad, and the noise and vibration are also problems that cannot be solved for a long time by ordinary friction plates.

[0005] For example, the friction plate CN202323075850.1 proposed in the prior art produces a large amount of noise and vibration when using the friction plate in the prior art: 1. The heat dissipation of the braking system is poor for a long time, causing the temperature of the brake disc, friction plate and related parts to be too high, the friction plate to form a hard point, and the brake disc to be scratched, resulting in a loud noise during braking. 2. After a long time of use, the surface of the friction plate is subjected to high temperature friction for a long time, and a carbonized film is formed on the surface, which increases the hardness of the surface of the friction plate and makes the texture hard, which causes higher frequency vibration of the surface during vehicle braking.

[0006] The noise and vibration of the above-mentioned friction plate are transmitted to the vehicle body, causing the noise and vibration of the cab to be too large, reducing the driving comfort of the driver.

[0007] In view of the above, there is an urgent need to propose a brake noise reduction friction plate that can effectively reduce the noise and vibration transmitted from the friction plate to the vehicle body. UTILITY MODEL CONTENT

[0008] In view of the technical problem that the brake noise reduction friction plate in the prior art can effectively reduce the noise and vibration transmitted from the friction plate to the vehicle body, the utility model provides a brake noise reduction friction plate, brake and automobile.

[0009] The utility model realizes the following technical schemes:

[0010] A brake noise reduction friction plate comprises a friction block, a heat insulation block, a steel back and a sound absorbing sheet.

[0011] Along the first direction, the friction block, the heat insulation block, the steel back and the sound-absorbing sheet are sequentially connected.

[0012] The first direction is along a horizontal direction.

[0013] Further, the sound-absorbing sheet comprises a substrate, and the substrate is provided with a first rubber layer and a second rubber layer on two sides of a plate material of the substrate.

[0014] Further, the second rubber layer is provided with a glue layer on a side surface away from the substrate, and the glue layer is further provided with a first coating layer on a side surface away from the second rubber layer.

[0015] Further, the sound-absorbing sheet is provided with a second coating layer on a bottom end surface of the sound-absorbing sheet and a bottom end surface of the steel back.

[0016] Further, a side surface of the sound-absorbing sheet facing the steel back is connected to a side surface of the steel back facing the sound-absorbing sheet by means of adhesion.

[0017] Further, a brake is also provided, which comprises the brake noise-reducing friction sheet.

[0018] Further, the brake further comprises a thrust assembly and a brake disc, and the thrust assembly is used to drive the brake noise-reducing friction sheet to move towards or away from the brake disc.

[0019] Further, an automobile is also provided, which comprises the brake noise-reducing friction sheet or the brake.

[0020] Compared with the prior art, the brake noise-reducing friction sheet has the following advantages:

[0021] 1. In the brake noise-reducing friction sheet, the friction block corresponds to the friction sheet in the prior art, and the heat insulation block, the steel back and the sound-absorbing sheet are sequentially arranged on one side of the friction block on the basis of the prior art. The noise and vibration generated between the friction block and the brake disc are transmitted to the steel back through the heat insulation block, are weakened once, are then transmitted to the sound-absorbing sheet from the steel back, are weakened twice, and are effectively weakened when being transmitted from the sound-absorbing sheet to the vehicle body. The noise and vibration weakened twice are very small when being transmitted to the vehicle body, and the comfort of driving is improved. DRAWINGS

[0022] Figure 1 FIG. 1 is a structural schematic view of the brake noise-reducing friction sheet of the embodiment 1;

[0023] Figure 2 FIG. 2 is a sectional structural schematic view of the brake noise-reducing friction sheet of the embodiment 1; Figure 1

[0024] Further, the sound-absorbing sheet comprises a substrate, and the substrate is provided with a first rubber layer and a second rubber layer on two sides of a plate material of the substrate. Further, the second rubber layer is provided with a glue layer on a side surface away from the substrate, and the glue layer is further provided with a first coating layer on a side surface away from the second rubber layer. Further, the sound-absorbing sheet is provided with a second coating layer on a bottom end surface of the sound-absorbing sheet and a bottom end surface of the steel back. Further, a side surface of the sound-absorbing sheet facing the steel back is connected to a side surface of the steel back facing the sound-absorbing sheet by means of adhesion. Further, a brake is also provided, which comprises the brake noise-reducing friction sheet. Further, the brake further comprises a thrust assembly and a brake disc, and the thrust assembly is used to drive the brake noise-reducing friction sheet to move towards or away from the brake disc. Further, an automobile is also provided, which comprises the brake noise-reducing friction sheet or the brake. Compared with the prior art, the brake noise-reducing friction sheet has the following advantages: 1. In the brake noise-reducing friction sheet, the friction block corresponds to the friction sheet in the prior art, and the heat insulation block, the steel back and the sound-absorbing sheet are sequentially arranged on one side of the friction block on the basis of the prior art. The noise and vibration generated between the friction block and the brake disc are transmitted to the steel back through the heat insulation block, are weakened once, are then transmitted to the sound-absorbing sheet from the steel back, are weakened twice, and are effectively weakened when being transmitted from the sound-absorbing sheet to the vehicle body. The noise and vibration weakened twice are very small when being transmitted to the vehicle body, and the comfort of driving is improved.Figure 3 Structure diagram of the brake of Example 1;

[0025] Figure 4 Structure diagram of the brake of Example 2.

[0026] Marked in the figure: friction block (1), heat insulation block (2), steel back (3), noise reduction sheet (4), base plate (401), first rubber layer (402), second rubber layer (403), adhesive layer (404), first coating layer (5), thrust assembly (6), brake disc (7). DETAILED DESCRIPTION

[0027] The utility model technical scheme will be further described in detail below in combination with the preferred embodiments and the drawings. In the description of the utility model, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientations or positional relationships shown in the drawings. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0028] Example 1

[0029] As shown in Figures 1-2 The present embodiment proposes a brake noise reduction friction sheet, which comprises a friction block 1, a heat insulation block 2, a steel back 3, and a noise reduction sheet 4. Along the first direction, the friction block 1, the heat insulation block 2, the steel back 3, and the noise reduction sheet 4 are connected in sequence. The first direction is along the horizontal direction.

[0030] The material of the friction block 1 adopts one of the existing technologies, such as: graphite, cellulose, resin and metal particle composite materials, etc. The function of the friction block 1 is to contact with the brake disc, thereby generating braking force on the vehicle, forcing the vehicle to slow down or stop.

[0031] The material of the heat insulation block 2 is one of the existing technologies, such as phenolic resin and oxidized ceramics. The function of the heat insulation block 2 is that during the braking process, the brake disc and the friction block 1 will generate a lot of heat when they come into contact with each other. The heat insulation block has good high temperature resistance and heat insulation properties, preventing the temperature from being conducted to other rubber parts of the vehicle body through the brake noise reduction friction pad, which would cause damage to the rubber parts.

[0032] The steel backing 3 is made of one of the existing technologies, such as a high-strength steel plate with a thickness of 6-8mm. The function of the steel backing 3 is to provide a stable support surface for fixing high-strength materials such as heat insulation block 2 and sound-absorbing sheet 4, while also ensuring the effectiveness and safety of the braking system.

[0033] The sound damper 4 is used to absorb the vibration and noise transmitted from the steel back 3 to the vehicle body; the specific structure of the sound damper 4 is detailed below.

[0034] In this embodiment, the first direction is set along the horizontal direction, and the friction block 1, heat insulation block 2, steel back 3, and sound-absorbing sheet 4 are connected in sequence. Specifically, the friction block 1, heat insulation block 2, and steel back 3 are formed by hot pressing. The surface of the sound-absorbing sheet 4 facing the steel back 3 is connected to the surface of the steel back 3 facing the sound-absorbing sheet 4 by adhesive bonding.

[0035] As can be seen from the background technology, there is an urgent need to propose a brake noise reduction friction pad that can effectively reduce the noise and vibration transmitted from the friction pad to the vehicle body.

[0036] In this embodiment, the friction block 1 is equivalent to the friction pad in the prior art. Based on the prior art, this embodiment sequentially sets a heat insulation block 2, a steel backing 3, and a sound-absorbing plate 4 on one side of the friction block 1. The noise and vibration generated between the friction block 1 and the brake disc are transmitted to the steel backing 3 through the heat insulation block 2, which will reduce the noise and vibration once. Then, they are transmitted from the steel backing 3 to the sound-absorbing plate 4, which will reduce the noise and vibration a second time. This effectively reduces the noise and vibration transmitted from the friction pad to the vehicle body. After the noise and vibration are reduced twice, they are transmitted to the vehicle body, and the noise and vibration caused to the vehicle body are very small, which will also improve the driver's driving comfort.

[0037] like Figures 2-3 As shown, the specific structure of the sound-absorbing sheet 4 is as follows: the sound-absorbing sheet 4 includes a substrate 401, and a first rubber layer 402 and a second rubber layer 403 are respectively provided on both sides of the substrate 401, wherein the first rubber layer 402 is used to contact the steel back 3.

[0038] The substrate 40 is made of metal, such as stainless steel sheet; the first rubber layer 402 and the second rubber layer 403 are both made of rubber material, which has a good absorption effect on noise and vibration.

[0039] Further, the second rubber layer 403 is provided with an adhesive layer 404 on the side surface away from the substrate 401, and the side surface away from the second rubber layer 403 of the adhesive layer 404 is further provided with a first coating layer 5.

[0040] The material of the first coating layer 5 is a ceramic coating layer, which has the functions of reducing friction and resisting high and low temperatures, and protects the surface of the sound-absorbing sheet 4; the first coating layer 5 can be formed by spraying or smearing and then being left to dry; the setting of the first coating layer 5 makes the noise and vibration be weakened for the third time when passing through the first coating layer 5, thereby achieving a better noise reduction effect.

[0041] The material of the adhesive layer 404 is epoxy resin glue, which has adhesion; the setting of the first coating layer 5 on the adhesive layer 404 helps the first coating layer 5 to be more firmly attached.

[0042] Further, the bottom end surface of the sound-absorbing sheet 4 and the bottom end surface of the steel back 3 are respectively provided with a second coating layer.

[0043] The position of the second coating layer is not shown in the figure, and the material of the second coating layer is consistent with that of the first coating layer. Generally, the bottom end surface of the sound-absorbing sheet 4 and the bottom end surface of the steel back 3 need to be in contact with the automobile bottom support, and the second coating layer is coated so that the bottom end surface of the sound-absorbing sheet 4 and the bottom end surface of the steel back 3 have good wear resistance.

[0044] Embodiment 2

[0045] As shown in Figure 4 the embodiment, the embodiment provides a brake, which includes the brake noise-reducing friction sheet provided in the embodiment 1.

[0046] The brake further includes a thrust assembly 6 and a brake disc 7, and the thrust assembly 6 is used to drive the brake noise-reducing friction sheet to approach or move away from the brake disc 7.

[0047] Embodiment 3

[0048] The embodiment provides an automobile, which includes the brake noise-reducing friction sheet of the embodiment 1 or the brake of the embodiment 2.

[0049] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the patent range of the utility model. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A brake noise reducing friction plate characterized by, The brake noise reduction friction plate comprises a friction block (1), a heat insulation block (2), a steel back (3), and a sound reduction sheet (4). The friction block (1), the heat insulation block (2), the steel back (3), and the sound reduction sheet (4) are sequentially connected along a first direction. The first direction is along a horizontal direction.

2. The brake quieting band of claim 1, wherein, The sound reduction sheet (4) comprises a substrate (401), and first and second rubber layers (402, 403) are respectively arranged on both sides of the substrate (401).

3. The brake quieting band of claim 2 wherein, The first rubber layer (402) is used to contact the steel back (3).

4. The brake quieting band of claim 3 wherein, A glue layer (404) is arranged on a side surface of the second rubber layer (403) away from the substrate (401).

5. The brake quieting band of claim 4 wherein, A first coating layer (5) is further arranged on a side surface of the glue layer (404) away from the second rubber layer (403).

6. A brake characterized by Second coating layers are respectively arranged on a bottom end surface of the sound reduction sheet (4) and a bottom end surface of the steel back (3).

7. The brake of claim 6 wherein, A side surface of the sound reduction sheet (4) facing the steel back (3) is connected to a side surface of the steel back (3) facing the sound reduction sheet (4) by adhesion.

8. An automobile characterized by comprising: The brake noise reduction friction plate comprises a friction block (1), a heat insulation block (2), a steel back (3), and a sound reduction sheet (4).

9. An automobile characterized by comprising: The brake further comprises a thrust assembly (6) and a brake disc (7), and the thrust assembly (6) is used to drive the brake noise reduction friction plate to move towards or away from the brake disc (7). The brake noise reduction friction plate comprises a friction block (1), a heat insulation block (2), a steel back (3), and a sound reduction sheet (4). The brake comprises the brake noise reduction friction plate according to any one of claims 6-7. The brake comprises the brake noise reduction friction plate according to any one of claims 6-7.

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