Fixed brake caliper

Abstract

The utility model relates to the technical field of automobile brake devices, and discloses a fixed brake caliper which comprises a brake disc and a brake caliper body composed of pistons and brake pads, the number of the pistons is even, the pistons are arranged in the brake caliper body in pairs, the pistons drive the brake pads to move horizontally, and the brake disc is braked. The brake caliper is characterized in that a piston is arranged on each side of the brake caliper body, a supporting assembly is arranged beside the piston on each side, and the supporting assemblies can stretch out and draw back along with movement of the pistons and are connected with the brake pads, so that the brake pads with large areas can be supported by the supporting assemblies besides being supported by the pistons. The single piston can drive the brake pad with a large area, so that a brake system is simplified, and a vehicle can quickly and stably complete the brake process.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile brake devices, in particular to a fixed brake caliper. Background Art

[0002] Fixed brake calipers, also known as opposed calipers or multi-piston calipers, are mainly characterized by the layout of the same number and size of pistons at the same position on both sides of the brake disc. When the brake fluid is evenly distributed to the pistons on both sides through the pipes on the caliper, the pistons will push the brake pads to tighten the brake disc, thereby achieving immediate braking effect. Since the caliper body is fixed and will not produce left and right displacement, it is called a fixed caliper.

[0003] The braking performance of the brake caliper is positively correlated to the contact area between the brake pad and the brake disc. If a better braking effect is required, a larger brake pad needs to be added. A large brake pad requires an increased number of pistons to drive it. The increase in the number of pistons will greatly increase the manufacturing cost of the brake caliper. At the same time, the oil circuit needs to be increased, and the oil circuit will become more complicated, which may affect the vehicle's suspension system and wheel installation, increasing maintenance costs and difficulty. The increase in the number of plugs will also increase the manufacturing cost and weight of the caliper. More pistons means more complex manufacturing processes and more materials, which will lead to an increase in the price of the caliper. At the same time, heavier calipers may also increase the unsprung mass of the vehicle and affect the vehicle's handling performance. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a fixed brake caliper, which has the advantage of using fewer pistons to drive the brake and solves the problem of increased costs due to increased pistons.

[0006] (II) Technical solution

[0007] In order to achieve the purpose of the above-mentioned few-piston driven braking, the utility model provides the following technical solutions: a fixed brake caliper, including a brake disc, a brake caliper body composed of a piston and a brake pad, the pistons are provided in an even number and are arranged in pairs in the brake caliper body, the pistons drive the brake pads to translate, and brake the brake disc, a support assembly is provided next to the piston on each side, and the support assembly can extend and retract following the movement of the piston and is connected to the brake pads.

[0008] Preferably, the support assembly is specifically a telescopic rod structure and is driven by an electromagnetic force. An electromagnet is provided inside and a magnet is provided near the brake pad. The electromagnet attracts or repels the magnet by generating different magnetism. Through electromagnetic drive, the overall response is fast and the control is precise, thereby avoiding damage to the brake pad caused by uneven force due to inconsistent telescopic distances. At the same time, a magnet is provided in contact with the brake pad to magnetize the brake pad, so that it can effectively attract when in contact with the brake disc, reduce the vibration amplitude, and reduce noise.

[0009] Preferably, an air flow nozzle is provided in the brake caliper body and above the brake disc, and the air flow ejected by the air flow nozzle is perpendicular to the tangent line of the brake disc edge. When the brake disc generates a large amount of heat during braking, the air flow ejected by the air flow nozzle can directly act on the tangent line of the brake disc edge to quickly take away the heat. This cooling method can effectively reduce the temperature of the brake disc and prevent the occurrence of thermal decay, thereby maintaining the stability of the braking performance. When the air flow ejected by the air flow nozzle hits the surface of the brake disc, a certain air flow pressure will be formed, which is of positive significance for improving driving comfort and reducing noise pollution. The air flow ejected by the air flow nozzle can also help remove impurities such as dust and fine sand attached to the surface of the brake disc, which may affect the braking effect and the life of the brake disc. Through the flushing effect of the air flow, the surface of the brake disc can be effectively kept clean. The design of the air flow nozzle can optimize the air flow distribution during braking, so that the air flow can act on the key parts of the brake disc more concentratedly and evenly.

[0010] Preferably, the middle layer of the brake disc is provided with depressions along the edge array. The brake disc will generate a large amount of heat during braking, and this heat needs to be quickly dissipated to prevent thermal decay. The depression design along the edge array can increase the surface area of ​​the brake disc, thereby improving the heat dissipation efficiency and maintaining the stability of the braking performance. The depression design can change the structure of the brake disc to a certain extent, making it more stable.

[0011] Preferably, arc-shaped depressions are arranged in an array around the axis of the brake disc on both sides, and the depth of the depressions does not exceed one eighth of the overall width of the brake disc. The presence of the depressions allows the brake pad to enter the depressions when there is foreign matter directly between the brake disc and the brake disc during braking, thereby avoiding prolonged friction between the brake disc and the brake pad, reducing the wear caused by the presence of foreign matter between the brake disc and the brake pad, and increasing the heat dissipation area of ​​the brake disc, thereby preventing the heat generated during braking friction from being difficult to volatilize. At the same time, the channel for gas flow is increased, thereby accelerating the air flow to take away the heat from the brake disc. If the depression is too deep, it may cause problems such as brake jitter, noise, and even brake deviation.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a fixed brake caliper, which has the following beneficial effects:

[0014] 1. The support component on the side of the piston of the fixed brake caliper, as an important auxiliary structure, will closely follow the movement of the piston, so as to ensure that it can be pushed out synchronously with the brake pad driven by the piston. This design cleverly utilizes the role of the support component, so that the brake pad with a larger area can be supported by the support component in addition to the support of the piston. The design feature of this brake caliper is that it can drive the brake pad with a larger area with only a single piston. This design not only simplifies the braking system, but also enables the vehicle to complete the braking process quickly and stably. In addition, this design also optimizes the cylinder oil circuit structure, making the oil circuit layout more reasonable and improving the efficiency of oil flow.

[0015] 2. The fixed brake caliper is provided with an airflow nozzle inside the brake caliper body and above the brake disc. The airflow ejected by the airflow nozzle is perpendicular to the tangent line of the brake disc edge. When the brake disc generates a large amount of heat during braking, the airflow ejected by the airflow nozzle can directly act on the tangent line of the brake disc edge to quickly take away the heat. This cooling method can effectively reduce the temperature of the brake disc and prevent the occurrence of thermal decay. When the airflow ejected by the airflow nozzle hits the surface of the brake disc, a certain airflow pressure will be formed, which helps to reduce the noise generated during braking. The airflow ejected by the airflow nozzle can also help remove dust, fine sand and other impurities attached to the surface of the brake disc. These impurities may affect the braking effect and the life of the brake disc. Through the flushing effect of the airflow, the surface of the brake disc can be effectively kept clean. The design of the airflow nozzle can optimize the airflow distribution during braking, so that the airflow can act on the key parts of the brake disc more concentratedly and evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cutaway schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the brake pad of the utility model.

[0019] In the figure: 1, brake disc; 2, brake caliper body; 21, piston; 22, support assembly; 23, brake pad; 24, air flow nozzle; 221, magnet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 3 A fixed brake caliper comprises a brake disc 1, a brake caliper body 2 consisting of a piston 21 and a brake pad 23. The pistons 21 are provided in an even number and are arranged in pairs in the brake caliper body 2. The pistons 21 drive the brake pads 23 to translate to brake the brake disc 1. A support assembly 22 is provided next to the piston 21 on each side. The support assembly 22 can extend and retract following the movement of the piston 21 and is connected to the brake pads 23. When the user drives the car and steps on the brake, the piston 21 will start quickly, driving the brake pads 23 to be pushed out with extremely high efficiency. At the same time, the support assembly 22 on the side of the piston 21, as an important auxiliary structure, will closely follow the movement state of the piston 21, thereby ensuring that it can be pushed out synchronously with the brake pads 23 driven by the piston 21. This design cleverly utilizes the function of the support assembly 22, so that the brake pads 23 with a larger area can be supported by the piston 21.

[0022] The support assembly 22 is specifically a telescopic rod structure and is driven by an electromagnetic. An electromagnet is arranged inside and a magnet 221 is arranged near the brake pad 23. The electromagnet attracts or repels the magnet 221 by generating different magnetism. Through electromagnetic drive, the overall response is fast and the control is precise, which avoids damage to the brake pad 23 caused by uneven force due to inconsistent telescopic distances. At the same time, the magnet 221 is provided to contact the brake pad 23, which can magnetize the brake pad 23 and effectively attract it when it contacts the brake disc 1, thereby reducing the vibration amplitude and noise.

[0023] An airflow nozzle 24 is provided inside the brake caliper body 2 and above the brake disc 1. The airflow ejected by the airflow nozzle 24 is perpendicular to the tangent line of the edge of the brake disc 1. When the brake disc 1 generates a large amount of heat during the braking process, the airflow ejected by the airflow nozzle 24 can directly act on the tangent line of the edge of the brake disc 1 to quickly take away the heat. This cooling method can effectively reduce the temperature of the brake disc 1 and prevent the occurrence of thermal decay, thereby maintaining the stability of the braking performance. When the airflow ejected by the airflow nozzle 24 hits the surface of the brake disc 1, it will form a certain airflow pressure, which helps to reduce the noise generated during braking. This has a positive significance for improving driving comfort and reducing noise pollution. The airflow ejected by the airflow nozzle 24 can also help remove impurities such as dust and fine sand attached to the surface of the brake disc 1. These impurities may affect the braking effect and the life of the brake disc. Through the flushing effect of the airflow, the surface of the brake disc can be effectively kept clean. The design of the airflow nozzle 24 can optimize the airflow distribution during the braking process, so that the airflow acts more concentratedly and evenly on the key parts of the brake disc 1, which helps to improve the braking efficiency and shorten the braking distance, thereby increasing the safety of vehicle driving.

[0024] The middle layer of the brake disc 1 is provided with depressions along the edge array. The brake disc 1 will generate a large amount of heat during braking, and this heat needs to be quickly dissipated to prevent thermal decay. The depression design along the edge array can increase the surface area of ​​the brake disc 1, thereby improving the heat dissipation efficiency and maintaining the stability of the braking performance. By designing the depressions, the weight of the brake disc 1 can be reduced to a certain extent, which is of positive significance for improving the fuel economy of the vehicle and reducing energy consumption. The depression design can change the structure of the brake disc 1 to a certain extent, making it more stable, which helps to reduce vibration and noise during braking and improve the comfort and stability of braking.

[0025] The brake disc 1 is provided with arc-shaped depressions in an array around the axis of the brake disc 1 on both sides, and the depth of the depression does not exceed one eighth of the overall width of the brake disc 1. The presence of the depressions allows the brake pad 23 to enter the depressions when there is a foreign object directly between the brake disc 1 and the brake disc 1 during braking, thereby avoiding prolonged friction between the brake disc 1 and the brake pad 23, reducing the wear caused by the presence of foreign objects between the brake disc 1 and the brake pad 23, and increasing the heat dissipation area of ​​the brake disc 1, thereby preventing the heat generated during braking friction from being difficult to volatilize. At the same time, the channel for gas flow is increased, thereby accelerating the air flow to take away the heat on the brake disc. If the depression is too deep, it may cause problems such as brake jitter, noise, and even brake bias.

[0026] Working principle: When the user drives the car and steps on the brake, the piston 21 will start quickly, driving the brake pad 23 to be pushed out with extremely high efficiency. At the same time, the support assembly 22 on the side of the piston 21, as an important auxiliary structure, will closely follow the movement state of the piston 21, thereby ensuring that it can be pushed out synchronously with the brake pad 23 driven by the piston 21. This design cleverly utilizes the function of the support assembly 22, so that the brake pad 23 with a larger area can be supported by the support assembly 22 in addition to the support of the piston 21. The design feature of this brake caliper is that it only uses a single piston 21 to drive the brake pad 23 with a larger area. Such a design not only simplifies the braking system, but also enables the vehicle to complete the braking process quickly and stably. In addition, this design also optimizes the cylinder oil circuit structure, makes the oil circuit layout more reasonable, and improves the efficiency of oil flow. This optimization not only reduces the number of pistons 21 required, thereby reducing manufacturing costs, but also improves production efficiency, making the production of brake calipers easier and faster.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixed brake caliper comprising a brake disc (1), a brake caliper body (2) consisting of a piston (21) and a brake pad (23), characterized in that: The pistons (21) are provided in an even number and are arranged in pairs in the brake caliper body (2). The pistons (21) drive the brake pads (23) to translate to brake the brake disc (1). A support assembly (22) is provided next to the pistons (21) on each side. The support assembly (22) can extend and retract following the movement of the pistons (21) and is connected to the brake pads (23).

2. The fixed brake caliper according to claim 1, characterized in that: The support assembly (22) is specifically a telescopic rod structure and is driven by an electromagnetic force. An electromagnet is provided inside the support assembly and a magnet (221) is provided near the brake pad (23). The electromagnet attracts or repels the magnet (221) by generating a difference in magnetic properties.

3. The fixed brake caliper according to claim 1, characterized in that: An airflow nozzle (24) is provided inside the brake caliper body (2) and above the brake disc (1), and the airflow ejected by the airflow nozzle (24) is perpendicular to the tangent line of the edge of the brake disc (1).

4. The fixed brake caliper according to claim 1, characterized in that: The middle layer of the brake disc (1) is provided with depressions arranged in an array along the edge.

5. The fixed brake caliper according to claim 1, characterized in that: The brake disc (1) is provided with arc-shaped depressions in an array around the axis of the brake disc (1) on both sides, and the depth of the depressions does not exceed one eighth of the overall width of the brake disc (1).

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