Brake caliper assembly, brake and vehicle

Abstract

The utility model relates to the technical field of vehicles, and discloses a brake caliper assembly, a brake and a vehicle, the brake caliper assembly comprises a caliper body, a return assembly and two friction pieces, the return assembly comprises a guide part, a limiting part and elastic pieces, the guide part is provided with the two elastic pieces at intervals, the elastic pieces are arranged on the periphery of the guide part in a sleeving mode, the limiting part is connected to the guide part, and the friction pieces are arranged on the limiting part. The two friction pieces are movably connected to the two guide parts in the first direction and located on the sides, away from the limiting parts, of the elastic pieces. One end of the elastic piece abuts against the limiting part on the corresponding side, and the other end of the elastic piece abuts against the friction piece on the corresponding side. The friction pieces on the two sides are pushed to return through the two independent elastic pieces, resilience force does not affect each other, and return conditions of the two friction pieces do not affect each other, so that return stability and reliability can be improved, reliable return of the friction pieces on the two sides can be guaranteed, and dragging force of the friction pieces is reduced. The brake with the brake caliper assembly and the vehicle with the brake caliper assembly also have the advantages.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a brake caliper assembly, a brake and a vehicle. Background Art

[0002] In the related art, when the brake is pressurized, the friction parts on both sides of the brake disc are pushed to move, so that the brake disc is clamped to achieve braking, and the elastic part is compressed between the two friction parts. After the brake caliper releases the pressure, the two friction parts are pushed away from each other by the rebound force of the elastic part, so as to separate from the brake disc to release the brake. In the process of releasing the brake, if the friction coefficients of the friction parts on both sides are different, the speed and force of the elastic part pushing the friction parts on both sides to return may be inconsistent, and the return conditions of the friction parts on both sides will also affect each other, affecting the stability and reliability of the return of each friction part, so that the brake drag phenomenon is easy to occur. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a brake caliper assembly that improves the return reliability of the friction member. The present application also proposes a brake and a vehicle having the brake caliper assembly.

[0004] In a first aspect, a brake caliper assembly of an embodiment of the present application comprises a caliper body, a return assembly and two friction members, the return assembly comprises a guide portion, a limit portion and an elastic member, the guide portion extends along a first direction, two ends of the guide portion are respectively connected to the caliper body, two elastic members are arranged at intervals on the guide portion along the first direction, the elastic member is sleeved on the outer periphery of the guide portion, the limit portion is arranged on the guide portion and is located between the two elastic members; the two friction members are arranged at intervals along the first direction, each of the friction members is movably connected to the two guide portions along the first direction, and is located on a side of the elastic member away from the limit portion;

[0005] One end of the elastic member abuts against the limiting portion on the corresponding side, and the other end abuts against the friction member on the corresponding side. The two elastic members are configured to respectively provide elastic forces to drive the friction members on the corresponding sides to return to their positions.

[0006] The brake caliper assembly according to the embodiment of the present application has at least the following beneficial effects: on the return component, two independent elastic parts are used to push the friction parts on both sides to return, and the rebound forces do not affect each other, and the return conditions of the two friction parts will not affect each other, thereby improving the stability and reliability of the return, helping to ensure the reliable return of the friction parts on both sides and reducing the drag force of the friction parts.

[0007] According to the brake caliper assembly of some embodiments of the present application, the guide portion and the limiting portion are detachably connected.

[0008] According to the brake caliper assembly of some embodiments of the present application, along the first direction, at least two spaced grooves are provided on the guide portion, the groove is located between the two elastic members, and a clamping portion is formed on the guide portion at a position corresponding to the groove; the limiting portion includes two limiting members, each of which is detachably clamped to one of the clamping members, a portion of the limiting member is located in the groove, and a portion protrudes from the outer peripheral wall of the guide portion, and along the first direction, the groove walls on both sides of the groove respectively abut against the two sides of the limiting member.

[0009] According to some embodiments of the brake caliper assembly of the present application, the limit member is provided with a through hole and an opening, the through hole passes through the limit member along the first direction, and the opening connects the through hole and the outer peripheral edge of the limit member along the radial direction of the through hole; the clamping portion can enter the through hole through the opening.

[0010] According to some embodiments of the brake caliper assembly of the present application, the friction member is provided with a mounting hole, the guide portion is inserted into the mounting hole, the elastic member is a coil spring, and the coil spring extends along the first direction and is sleeved on the guide portion.

[0011] According to some embodiments of the brake caliper assembly of the present application, the coil spring includes a first end and a second end, the first end abuts against the limiting portion, and the second end abuts against the friction member, wherein a diameter of the second end is greater than a diameter of the first end.

[0012] According to some embodiments of the brake caliper assembly of the present application, a limiting groove is provided on the side of the friction member facing the elastic member, the limiting groove surrounds the mounting hole, one end of the elastic member is located in the limiting groove, and along the radial direction of the mounting hole, the groove wall of the limiting groove is suitable for abutting against the outer peripheral wall of the elastic member.

[0013] According to some embodiments of the brake caliper assembly of the present application, the brake caliper assembly includes at least two return assemblies, at least two return assemblies are spaced apart along a second direction, the second direction is perpendicular to the first direction, and the guide portions of the return assemblies are parallel to each other.

[0014] In a second aspect, a brake according to an embodiment of the present application comprises a brake disc and a brake caliper assembly according to an embodiment of the first aspect, wherein the brake disc is located between the two friction members.

[0015] The brake according to the embodiment of the present application has at least the following beneficial effects: in the brake, the brake caliper assembly of the first aspect embodiment is adopted to improve the stability and reliability of the return of the friction parts, and ensure the reliable return of the friction parts on both sides. Therefore, after the brake is released, it can be ensured that the friction parts on both sides are reliably separated from the brake disc, effectively reducing the probability of dragging between the brake disc and the friction parts.

[0016] In a third aspect, the vehicle of the embodiment of the present application comprises the brake described in any embodiment of the second aspect. The brake can ensure that the friction parts on both sides are reliably separated from the brake disc, reduce the drag force of the friction parts, and help reduce the friction noise and driving energy consumption of the vehicle.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a brake caliper assembly according to an embodiment of the present application;

[0019] Figure 2 for Figure 1 A top view of

[0020] Figure 3 for Figure 1 A local enlarged schematic diagram of the A in FIG.

[0021] Figure 4 for Figure 1 An exploded view of the illustrated embodiment;

[0022] Figure 5 An exploded schematic diagram of a return component in a brake caliper assembly according to an embodiment of the present application;

[0023] Figure 6 It is a structural schematic diagram of a limiting part in an embodiment of the present application;

[0024] Figure 7 is a schematic structural diagram of a friction member in an embodiment of the present application;

[0025] Figure 8 It is a schematic cross-sectional view of a brake according to an embodiment of the present application along a plane where the axis of the brake disc is located.

[0026] Reference numerals:

[0027] Clamp body 100; main body 110; accommodating cavity 111; abutting portion 120;

[0028] Return assembly 200;

[0029] Guide portion 210; groove 211; clamping portion 212;

[0030] Limiting portion 220; through hole 221; opening 222;

[0031] Elastic member 230; first end 231; second end 232;

[0032] Friction member 300; mounting hole 310; limiting groove 320;

[0033] Top pressure spring 400;

[0034] Brake disc 500. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the concept of the present application and the technical effects produced in combination with the embodiments, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present application.

[0036] In the description of the embodiments of the present application, if orientation descriptions are involved, the orientations or positional relationships indicated by "up", "down", "front", "back", "left", "right", etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or device referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application.

[0037] In the description of the embodiments of the present application, if a feature is referred to as being “set,” “fixed,” “connected,” or “installed” on another feature, it may be directly set, fixed, or connected to another feature, or it may be indirectly set, fixed, connected, or installed on another feature. In the description of the embodiments of the present application, if “several” is involved, it means more than one; if “multiple” is involved, it means more than two; if “greater than,” “less than,” or “exceeds” is involved, it should be understood as not including the number itself; if “above,” “below,” or “within” is involved, it should be understood as including the number itself. If “first” or “second” is involved, it should be understood as being used to distinguish technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the related art, after the vehicle releases the brakes, the friction parts and brake discs are prone to drag, which will not only aggravate the wear of the friction plates and increase the vehicle's driving energy consumption, but also cause abnormal friction noise in the vehicle.

[0039] The embodiment of the present application provides a brake caliper assembly, a brake having the brake caliper assembly, and a vehicle having the brake. In the brake caliper assembly, the return assembly pushes the friction members on both sides to return through two independent elastic members, thereby improving the stability and reliability of the return of the friction members and reducing the probability of brake drag. The embodiment of the present application is introduced below in conjunction with the drawings of the specification:

[0040] refer to Figures 1 to 4 The brake caliper assembly of the first embodiment of the present application includes a caliper body 100, a return assembly 200 and two friction members 300.

[0041] The return assembly 200 includes a guide portion 210, a limit portion 220 and an elastic member 230. The guide portion 210 extends along a first direction. Both ends of the guide portion 210 are connected to the caliper body 100 respectively. Two friction members 300 are arranged at intervals along the first direction. Each friction member 300 is movably connected to the two guide portions 210 along the first direction, so that the guide portion 210 and the friction member 300 can be installed on the caliper body 100. The friction member 300 can move along the first direction. The two friction members 300 can be driven to move toward each other, so as to clamp the brake disc 500 (refer to Figure 8 ) to achieve braking, or the two friction members 300 are driven to move in directions away from each other, thereby disengaging from the brake disc 500 to release the braking.

[0042] In the first direction, two elastic members 230 are arranged at intervals on the guide part 210, and the elastic members 230 are sleeved on the outer periphery of the guide part 210. The limiting part 220 is arranged on the guide part 210 and is located between the two elastic members 230. The two friction members 300 are respectively located on the side of the elastic member 230 on the corresponding side away from the limiting part 220, that is, one friction member and one elastic member 230 are located on the same side of the limiting part 220, and the other friction member 300 and the other elastic member 230 are located on the other side of the limiting part 220. Among the friction members 300 and the elastic member 230 on the same side, the friction member 300 is located on the side of the elastic member 230 away from the limiting part 220, wherein one end of the elastic member 230 abuts against the limiting part 220, and the other end abuts against the friction member 300 on the corresponding side.

[0043] Thus, the two elastic members 230 respectively provide elastic force to drive the friction members 300 on the corresponding sides to return. That is to say, the return assembly 200 uses two independent elastic members 230 to push the friction members 300 on both sides to return, and the rebound forces do not affect each other. Therefore, the return conditions of the two friction members 300 will not affect each other. For example, the return speed and force of one friction member 300 will not affect the return speed and force of the other friction member 300, making the return movement of the friction member 300 more stable and reliable, helping to ensure that the friction members 300 on both sides are reliably separated from the brake disc 500 and reducing the drag force of the friction member 300. When one of the elastic members 230 is damaged, it can be replaced separately, which is conducive to saving the cost of replacement parts.

[0044] In actual applications, due to factors such as manufacturing differences, wear degree differences or surface contamination differences, the friction parts on both sides of the brake disc 500 may have different friction coefficients. Under the same rebound force, the friction part with a smaller friction coefficient is easier to move, thereby leaving the brake disc 500 before the other friction part.

[0045] In some related technologies, an elastic member is arranged between two friction members, and the two ends of the elastic member are respectively in contact with the friction plates on both sides, providing a rebound force to push the two friction members to move back in opposite directions. In the case that the friction coefficients of the two friction members are inconsistent, the speed and force of the return of the two friction members may be inconsistent. The friction member that moves first will affect the overall rebound force of the elastic member, thereby affecting the return of the friction member on the other side, so brake drag is likely to occur.

[0046] In comparison, in the brake caliper assembly of the embodiment of the present application, the return component 200 pushes the friction members 300 on both sides to return through two independent elastic members 230, and the rebound forces do not affect each other. Therefore, even if the friction coefficients of the two friction members 300 are different, the return conditions of the two friction members 300 will not affect each other, which helps to ensure that the friction members 300 on both sides are reliably separated from the brake disc 500 and reduce the drag force of the friction members 300.

[0047] There are also some related technologies that install the elastic member on the caliper body. For example, the elastic member is fixedly installed on the caliper body by fasteners, or a clamping structure is set on the caliper body to clamp and install the elastic member. The elastic member is located between two friction members, and the friction member is pushed back to its position by elastic rebound force. This installation structure is relatively complex and inconvenient to assemble. The elastic member is easy to fall off the caliper body, resulting in return failure and poor reliability. In addition, the structure of this elastic member is also relatively complex. Generally, a spring structure with elastic deformation ability is formed by bending a metal sheet, which is not easy to manufacture, and the elastic member needs to have a sufficient length to extend from the caliper body to abut against the friction member, resulting in a large dead weight of the elastic member.

[0048] In comparison, in the brake caliper assembly of the embodiment of the present application, the elastic member 230 in the return assembly 200 is sleeved on the outer periphery of the guide portion 210, which simplifies the installation structure and does not require a connection structure to be provided on the caliper body 100 for connection, thereby avoiding the return failure problem caused by the failure of the connection between the elastic member 230 and the caliper body 100. In addition, the abutment portion 120, the elastic member 230, and the friction member 300 are arranged along the first direction, which is conducive to reducing the volume of the elastic member 230 and thus reducing the weight. The elastic member 230 can be deformed along the first direction to provide elastic force, driving the friction member 300 to move along the first direction, so that the utilization rate of the elastic force is high, which is conducive to improving the return efficiency of the friction member 300.

[0049] refer to Figure 1 and Figure 4 In some embodiments, the brake caliper assembly includes at least two return assemblies 200, which are spaced apart along the second direction, and the second direction is perpendicular to the first direction, so that each friction member 300 is abutted by the elastic member 230 on the return assembly 200 at different positions, thereby improving the return efficiency. The guide portions 210 of each return assembly 200 are parallel to each other, thereby ensuring that the friction member 300 moves in the same direction along each guide member to avoid jamming.

[0050] The limiting portion 220 may be integrally provided on the guiding portion 210 . For example, in some embodiments, the guiding portion 210 and the limiting portion 220 may be an integral structure, which may reduce the number of parts and simplify assembly.

[0051] The guide portion 210 and the limiting portion 220 may be formed as one piece by processing, for example, the guide portion 210 and the limiting portion 220 may be shaft-shaped structures extending in the first direction, the two ends of the limiting portion 220 are coaxially connected to the guide portion 210, and the diameter of the limiting portion 220 is larger than the diameter of the guide portion 210, so that the end of the limiting portion 220 can abut against one end of the elastic member 230 sleeved on the outer peripheral side of the guide portion 210. Alternatively, the guide portion 210 may be a shaft-shaped structure extending in the first direction, and the limiting portion 220 may include at least two bosses formed on the outer peripheral side of the guide portion 210 at intervals along the first direction, and the bosses can abut against one end of the elastic member 230 sleeved on the outer peripheral side of the guide portion 210.

[0052] The guide portion 210 and the limiting portion 220 may also be connected as one by welding. For example, the guide portion 210 may be an axial structure extending along the first direction, and the limiting portion 220 may be a sheet-like structure or a cylindrical structure having a through hole 221. The guide portion 210 is inserted into the through hole 221 of the limiting portion 220. The limiting portion 220 may be connected to the guide portion 210 as an integral structure by welding. A cylindrical limiting portion may be connected to the guide portion 210, and both ends of the cylinder may respectively abut against the elastic members 230 on both sides. Two sheet-like limiting portions 220 spaced apart along the first direction may be connected to the guide portion 210, and each sheet-like limiting portion 220 may respectively abut against the elastic member 230 on the side of the elastic member 230 away from the friction member 300.

[0053] The limiting portion 220 can also be detachably arranged on the guide portion 210. For example, in some embodiments, the guide portion 210 and the limiting portion 220 are detachably connected. During assembly, the two elastic members 230 can be sleeved on the guide portion 210, and then the limiting portion 220 is assembled accordingly, so as to facilitate the assembly of the elastic members 230. In addition, when the guide portion 210 or the limiting portion 220 is damaged, they can be replaced separately, thus saving the cost of replacement parts.

[0054] refer to Figure 3 and Figure 5 In some embodiments, along the first direction, at least two grooves 211 are provided on the guide portion 210, and the groove 211 is located between the two elastic members 230. A clamping portion 212 is formed on the guide portion 210 at a position corresponding to the groove 211. The limiting portion 220 includes two limiting members, and each limiting member is detachably clamped to a clamping portion 212. A portion of the limiting member is located in the groove 211, and a portion protrudes from the outer peripheral wall of the guide portion 210, so that it can abut against the elastic member 230. Along the first direction, the groove walls on both sides of the groove 211 abut against the two sides of the limiting member, respectively, to achieve the limiting of the limiting member, limit the relative position of the limiting member and the guide portion 210, improve the connection stability of the limiting member, and prevent the limiting member from shaking along the first direction to affect the elastic force of the elastic member 230, thereby ensuring the stability of the abutment between the limiting member and the elastic member 230.

[0055] Among them, the number of grooves 211 can be two, three, four or more, and two limit members can be clamped in two of the grooves 211. When the positions of the two friction members 300 remain unchanged, changing the position of the groove 211 to which the limit member is clamped can change the width of the gap between the limit member and the friction member 300 along the first direction, which can be suitable for installing elastic members 230 of different lengths, thereby adjusting the elastic force; or, when the lengths of the two elastic members 230 remain unchanged, changing the position of the groove 211 to which the limit member is clamped can change the position of the elastic member 230, which can be suitable for adjusting the spacing between the friction members 300 to be suitable for brake discs 500 of different thicknesses.

[0056] refer to Figure 6 The limiting member may be provided with a through hole 221 and an opening 222, wherein the through hole 221 passes through the limiting member along the first direction, and the opening 222 connects the through hole 221 and the outer peripheral edge of the limiting member along the radial direction of the through hole 221, and the clamping portion 212 on the guide portion 210 can enter the through hole 221 through the opening 222. Similarly, during disassembly, the clamping portion 212 can also be pushed out of the through hole 221 through the opening 222 of the limiting member, thereby realizing the detachable clamping of the limiting member.

[0057] refer to Figure 5 and Figure 6 Specifically, the guide portion 210 may be an axial structure extending along the first direction, the groove 211 may be an annular groove with the axis of the guide portion 210 as the axis, and the stopper may be an opening 222 retaining ring. The diameter of the clamping portion 212 of the guide portion 210 at the position of the groove 211 is adapted to the inner diameter of the through hole 221 of the stopper, so that when the stopper is clamped in the groove 211, the inner wall of the through hole 221 of the stopper abuts against the outer wall of the clamping portion 212, thereby effectively preventing the stopper from shaking in the radial direction and improving the stability of the connection.

[0058] refer to Figure 7In some embodiments, the friction member 300 is provided with a mounting hole 310, which can be a round hole or a square hole structure, the guide portion 210 is inserted into the mounting hole 310, and the elastic member 230 is a coil spring, which extends along the first direction and is sleeved on the guide portion 210 for easy installation. Thus, one end of the coil spring abuts against the friction member 300 and surrounds the mounting hole 310, so that the force application point surrounds the mounting hole 310. Compared with the solution in which the force application point deviates from the mounting hole 310, the utilization rate of the elastic force is higher, which effectively improves the return efficiency of the friction member 300.

[0059] refer to Figure 7 In some embodiments, a limiting groove 320 is provided on the side of the friction member 300 facing the elastic member 230, and the limiting groove 320 surrounds the mounting hole 310. One end of the elastic member 230 is located in the limiting groove 320. The groove wall of the limiting groove 320 is suitable for abutting against the outer peripheral wall of the elastic member 230, thereby realizing circumferential limitation of the elastic member 230 abutting against one end of the friction member 300, and effectively preventing the elastic member 230 from shaking in a direction perpendicular to the first direction. Among them, the groove wall of the limiting groove 320 can be circular and surround the mounting hole 310. The mounting hole 310 can be a circular hole structure. The groove wall of the limiting groove 320 can be coaxial with the mounting hole 310. The guide part 210 is a cylindrical shaft structure. The guide part 210 and the mounting hole 310 can be clearance-fitted. Therefore, the guide part 210, the elastic part 230 and the mounting hole 310 can form a coaxial (or basically coaxial) arrangement. The elastic force generated by the deformation of the elastic part 230 is basically used to drive the friction part 300 to move. The utilization rate of the elastic force is high, thereby effectively improving the return efficiency of the friction part 300.

[0060] refer to Figure 5 In some embodiments, the coil spring may be a cylindrical compression spring or a conical compression spring. For example, the coil spring includes a first end 231 and a second end 232, and the diameter of the second end 232 is larger than the diameter of the first end 231, thereby forming a conical compression spring structure. The first end 231 abuts against the limiting portion 220, and the second end 232 abuts against the friction member on the corresponding side. Because the diameter of the first end 231 is relatively small, the size of the abutting surface required for the limiting portion 220 to abut against the first end 231 can also be configured to be relatively small, which can avoid the required size of the limiting portion 220 along the radial direction of the spring being too large, which is beneficial to reducing weight. The surface of the side of the friction member 300 facing the coil spring can have a sufficiently large area suitable for abutting against the second end 232 with a larger diameter.

[0061] Based on the characteristics of the conical compression spring, as the spring is compressed, its force to resist compression will gradually increase. The force distributed per unit length at the end with a smaller diameter is relatively large. Compared with the linear rising force curve of the cylindrical compression spring, the force curve of the conical spring is a curved rising type. In other words, as the compression amount of the conical compression spring increases, the increment of the elastic force generated by each additional unit length of compression will gradually increase. Therefore, in the process of the friction member 300 moving toward each other to compress the conical spring, as the friction member 300 approaches each other, the elastic force gradually increases, and the greater the compression amount, the greater the increase in the elastic force, thereby improving the energy storage capacity, ensuring that there is a large rebound force to push the friction member 300 when the brake is released, and improving the efficiency of the friction member 300 returning to its original position.

[0062] refer to Figure 1 and Figure 4 In some embodiments, the brake caliper assembly may further include a pressure spring sheet 400, the caliper body 100 includes a main body 110 and an abutting portion 120, the main body 110 is provided with an accommodating cavity 111, the abutting portion 120 is located above the accommodating cavity 111 and connected to the main body 110, the friction member 300 is located in the accommodating cavity 111, the pressure spring sheet 400 abuts between the abutting portion 120 and the top of the friction member 300, and can press the friction member 300 in a direction away from the abutting portion 120, effectively reducing the vibration of the friction member 300 in a direction close to or away from the abutting portion 120, reducing the deviation of the elastic member 230, which is beneficial to the stable operation of the elastic member 230 and ensuring the reliable return of the friction member 300.

[0063] refer to Figure 1 and Figure 8 The embodiment of the present application further provides a brake, including a brake disc 500 and a brake caliper assembly of the embodiment of the present application, wherein the brake disc 500 is located between two friction members 300. In the brake, the brake caliper assembly of the above embodiment of the present application is used to improve the stability and reliability of the return of the friction members 300, and ensure that the friction members 300 on both sides return reliably. Therefore, after the brake is released, the friction members 300 on both sides can be reliably separated from the brake disc 500, and the probability of the dragging phenomenon between the brake disc 500 and the friction members 300 is effectively reduced.

[0064] It is understandable that the brake also includes a drive assembly, which is connected to the friction member 300 and is used to pressurize the friction member 300 during braking so that the friction member 300 moves relatively to clamp the brake disc 500 to achieve braking, and release the pressure when the brake is released so that the friction member 300 can return under the action of the return assembly 200. In specific applications, the drive assembly can be a hydraulic drive assembly or an electromagnetic drive assembly in a common brake, which will not be described in detail here.

[0065] The embodiment of the present application also proposes a vehicle with the above-mentioned brake, which can ensure that the friction parts 300 on both sides are reliably separated from the brake disc 500, reduce the drag force of the friction parts 300, and help reduce the friction noise and driving energy consumption of the vehicle. The vehicle involved in the embodiment of the present application can be a private car, such as a sedan, SUV, MPV or pickup truck. The vehicle can also be an operating vehicle, such as a van, bus, small truck or large trailer. The vehicle can be a gasoline vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0066] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A brake caliper assembly, characterized in that: include: Clamp body; A return assembly, comprising a guide portion, a limiting portion and an elastic member, wherein the guide portion extends along a first direction, and both ends of the guide portion are respectively connected to the caliper body, and along the first direction, two elastic members are spaced apart on the guide portion, and the elastic member is sleeved on the outer periphery of the guide portion, and the limiting portion is arranged on the guide portion and located between the two elastic members; Two friction members are arranged at intervals along the first direction, each of the friction members is movably connected to the two guide portions along the first direction, and is located on a side of the elastic member away from the limiting portion; One end of the elastic member abuts against the limiting portion, and the other end abuts against the friction member on the corresponding side. The two elastic members are configured to respectively provide elastic forces to drive the friction members on the corresponding sides to return to their positions.

2. The brake caliper assembly according to claim 1, characterized in that: The guiding portion and the limiting portion are detachably connected.

3. The brake caliper assembly according to claim 2, characterized in that: Along the first direction, the guide portion is provided with at least two grooves arranged at intervals, the grooves are located between the two elastic members, and a clamping portion is formed on the guide portion at positions corresponding to the grooves; The limiting portion includes two limiting members, each of which is detachably clamped to one of the clamping portions, a portion of the limiting member is located in the groove, and a portion protrudes from the outer peripheral wall of the guide portion, and along the first direction, the two side groove walls of the groove respectively abut against the two sides of the limiting member.

4. The brake caliper assembly according to claim 3, characterized in that: The limiting member is provided with a through hole and an opening, the through hole passes through the limiting member along the first direction, the opening connects the through hole and the outer circumference of the limiting member along the radial direction of the through hole, and the clamping portion can enter the through hole through the opening.

5. The brake caliper assembly according to claim 1, characterized in that: The friction member is provided with a mounting hole, the guide portion is inserted into the mounting hole, and the elastic member is a coil spring, which extends along the first direction and is sleeved on the guide portion.

6. The brake caliper assembly according to claim 5, characterized in that: The coil spring includes a first end and a second end, the first end abuts against the limiting portion, and the second end abuts against the friction member on the corresponding side, wherein a diameter of the second end is greater than a diameter of the first end.

7. The brake caliper assembly according to claim 5, characterized in that: The friction member is provided with a limiting groove on one side facing the elastic member, the limiting groove surrounds the mounting hole, one end of the elastic member is located in the limiting groove, and along the radial direction of the mounting hole, the groove wall of the limiting groove is suitable for abutting against the outer peripheral wall of the elastic member.

8. The brake caliper assembly according to claim 1, characterized in that: The brake caliper assembly includes at least two return assemblies, and the at least two return assemblies are arranged at intervals along a second direction, the second direction is perpendicular to the first direction, and the guide parts of each return assembly are parallel to each other.

9. A brake, characterized in that The invention comprises a brake disc and a brake caliper assembly according to any one of claims 1 to 8, wherein the brake disc is located between the two friction members.

10. A vehicle, characterized in that Comprising the brake as claimed in claim 9.

Images