Brake caliper, brake and vehicle

Abstract

The utility model discloses a brake caliper, a brake and a vehicle, the brake caliper comprises a friction piece used for providing friction force for a brake disc, and the friction piece at least can roll and slide along the surface of the brake disc. The friction piece is arranged to roll and slide along the surface of the brake disc, the friction piece can provide rolling friction force and sliding friction force for the brake disc, the braking process can be transited from rolling friction to sliding friction, the stability of the braking process of a vehicle can be improved, and therefore the NVH performance of the vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a brake caliper, a brake and a vehicle. Background Art

[0002] Currently, the brake caliper in a vehicle is close to the brake disc, and the brake caliper and the brake disc are in surface contact, so that the brake caliper can perform sliding friction braking on the brake disc. However, sliding friction braking will produce jitter noise, low-frequency howling and high-frequency howling, and the sliding friction braking method is relatively rigid, which will affect the smoothness of the vehicle's braking process, thereby reducing the vehicle's NVH (Noise, Vibration, Harshness) performance. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a brake caliper that can transition the braking process from rolling friction to sliding friction, thereby improving the smoothness of the vehicle braking process and the vehicle's NVH performance.

[0004] The utility model further provides a brake.

[0005] The utility model further provides a vehicle.

[0006] The brake caliper according to the present invention comprises a friction member for providing friction force to the brake disc, and the friction member can at least roll and roll along the surface of the brake disc.

[0007] According to the brake caliper of the present invention, by arranging the friction member to roll and slide along the surface of the brake disc, the friction member can provide rolling friction and sliding friction to the brake disc, which can not only make the braking process transition from rolling friction to sliding friction, but also improve the smoothness of the vehicle's braking process, thereby improving the vehicle's NVH performance.

[0008] In some examples of the present invention, the brake caliper also includes: a caliper body, on which several friction parts are arranged; the caliper body includes: a first caliper and a second caliper, the first caliper and the second caliper can move along the axial direction of the brake disc, the first caliper is provided with several first mounting grooves corresponding one-to-one to the friction parts, and one axial end of the friction part is movably connected to the first mounting groove; the friction part is located between the second caliper and the brake disc, the second caliper is provided with several second mounting grooves corresponding one-to-one to the friction parts, and the other axial end of the friction part is movably connected to the second mounting groove, the friction part can rotate around its own axis, and the second caliper is also provided with a first abutting surface to prevent the friction part from rotating when it abuts against the friction part.

[0009] In some examples of the present invention, the friction member can roll and slide along the axial end face of the brake disc, and a friction portion is formed on the middle circumferential surface of the friction member, and the friction portion can contact the axial end face of the brake disc to provide friction force to the end face of the brake disc when in contact; a first mounting portion is provided at one axial end of the friction member, and the first mounting portion can be rotatably mounted in the first mounting groove, and a part of the first mounting portion forms a second abutment surface that abuts with the first abutment surface; a second mounting portion is provided at the other end of the friction member body, and the second mounting portion can be movably mounted in the second mounting groove and can move axially along the brake disc relative to the second mounting groove.

[0010] In some examples of the present invention, the friction portion is configured in a conical shape, and a diameter of an end of the friction portion close to the first mounting groove is larger than a diameter of an end of the friction portion close to the second mounting groove.

[0011] In some examples of the present invention, the first caliper includes: a first plate and a second plate, the second plate is arranged at an angle to the first plate and extends in a direction away from the brake disc, and the first mounting groove is arranged on the second plate; the second caliper includes: a third plate and a fourth plate, the third plate is arranged on a side of the friction part away from the brake disc, and the first abutting surface is arranged on the third plate, the fourth plate is arranged at an angle to the third plate and extends in a direction toward the brake disc, and the second mounting groove is arranged on the fourth plate.

[0012] In some examples of the present invention, a plurality of first mounting grooves are provided on the second plate body at intervals along its circumferential direction, and a plurality of second mounting grooves are provided on the fourth plate body at intervals along its circumferential direction.

[0013] In some examples of the present invention, the caliper body also includes: a first actuator and a second actuator, the first actuator is connected to the first caliper to drive the first caliper to move axially along the brake disc, the second actuator is connected to the second caliper to drive the second caliper to move axially along the brake disc, the second actuator is spaced apart from the first caliper, or the second actuator passes through the first caliper.

[0014] In some examples of the present invention, there are multiple first actuators and multiple second actuators, and the multiple first actuators and the multiple second actuators are arranged alternately.

[0015] The brake according to the present invention comprises a brake disc and the brake caliper as described above, wherein the brake caliper is arranged on the outer periphery of the brake disc.

[0016] The vehicle according to the present utility model includes: the brake described above.

[0017] Compared with the existing technology, the present invention adopts a form in which the friction part is set to roll and slide along the surface of the brake disc. The friction part can provide rolling friction and sliding friction to the brake disc, which can not only make the braking process transition from rolling friction to sliding friction, but also improve the smoothness of the vehicle's braking process, thereby improving the vehicle's NVH performance.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 1 is a schematic structural diagram of a brake caliper according to an embodiment of the present utility model from a first angle;

[0021] Figure 2 It is a schematic structural diagram of a brake caliper according to a second angle of view of an embodiment of the present utility model.

[0022] Reference numerals:

[0023] 100. Brake calipers;

[0024] 10. First caliper; 11. First mounting groove; 12. First plate; 13. Second plate; 20. Second caliper; 21. Second mounting groove; 22. Third plate; 23. Fourth plate; 30. Friction member; 31. Friction portion; 32. First mounting portion; 33. Second mounting portion; 41. First actuator; 42. Second actuator. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0026] Reference below Figure 1 and Figure 2 A brake caliper 100 according to an embodiment of the present invention is described. The brake caliper 100 is applied to a vehicle.

[0027] like Figure 1 As shown, the brake caliper 100 according to the present invention includes a friction member 30 for providing friction force to the brake disc. The friction member 30 can at least roll and slide along the surface of the brake disc.

[0028] It can be understood that the friction member 30 can provide friction to the brake disc, so that the friction member 30 can brake the end face or circumferential surface of the brake disc, thereby realizing the braking function of the vehicle. The friction member 30 can roll and slide along the surface of the brake disc, and the friction member 30 can move in the direction close to the brake disc and in the direction away from the brake disc. This arrangement can make the friction member 30 rotate around its own axis when approaching the brake disc, and the friction member 30 can achieve the effect of rolling along the surface of the brake disc, at this time providing rolling friction to the brake disc. When the friction member 30 cannot rotate around its own axis, the friction member 30 can achieve the effect of sliding along the surface of the brake disc, at this time providing sliding friction to the brake disc, so that when the vehicle brakes, the friction member 30 can provide the brake disc with a transition from rolling friction braking to sliding friction braking. When the vehicle stops braking, the friction member 30 gradually moves away from the brake disc, which can not only improve the smoothness of the vehicle braking process, but also improve the NVH performance of the vehicle. For example, the surfaces of the brake disc are the end surface and the circumferential surface. In this embodiment, the end surface is preferred, so that the contact area between the friction member 30 and the brake disc can be increased, thereby improving the braking effect of the vehicle.

[0029] Therefore, by setting the friction member 30 to roll and slide along the surface of the brake disc, the friction member 30 can provide rolling friction and sliding friction to the brake disc, which can not only make the braking process transition from rolling friction to sliding friction, but also improve the smoothness of the vehicle's braking process, thereby improving the vehicle's NVH performance.

[0030] In addition, if Figure 1 and Figure 2 As shown, the brake caliper 100 also includes: a caliper body, on which a plurality of friction members 30 are arranged; the caliper body includes: a first caliper 10 and a second caliper 20, the first caliper 10 and the second caliper 20 can move along the axial direction of the brake disc, the first caliper 10 is provided with a plurality of first mounting grooves 11 corresponding one-to-one to the friction members 30, and one end of the friction member 30 in the axial direction is movably connected to the first mounting groove 11; the friction member 30 is located between the second caliper 20 and the brake disc, the second caliper 20 is provided with a plurality of second mounting grooves 21 corresponding one-to-one to the friction members 30, and the other end of the friction member 30 in the axial direction is movably connected to the second mounting groove 21, the friction member 30 can rotate around its own axis, and the second caliper 20 is also provided with a first abutting surface to prevent the friction member 30 from rotating when abutting with the friction member 30.

[0031] That is, the caliper body can provide a mounting position for the friction member 30 and can also enable the caliper body to control the friction member 30 to approach or move away from the brake disc, thereby facilitating the friction member 30 to brake the brake disc.

[0032] Among them, the first caliper 10 and the second caliper 20 constitute the main structure of the caliper body, the first caliper 10 is close to the brake disc, and the second caliper 20 is located on the side of the first caliper 10 away from the brake disc. The first caliper 10 and the second caliper 20 can both move axially along the brake disc. This arrangement allows the first caliper 10 and the second caliper 20 to be away from or close to the brake disc, thereby facilitating the first caliper 10 and the second caliper 20 to approach the brake disc respectively, and then the first caliper 10 and the second caliper 20 can drive the friction part 30 to approach or away from the brake disc, and realize the braking effect of the friction part 30 on the brake disc.

[0033] In addition, a first mounting groove 11 is provided on the first caliper 10, and a second mounting groove 21 is provided on the second caliper 20. The first mounting groove 11 and the second mounting groove 21 correspond to the friction member 30 one-to-one. This arrangement enables the first mounting groove 11 and the second mounting groove 21 to limit the range of movement of the friction member 30 and provide installation space, thereby facilitating the friction member 30 to approach or move away from the brake disc, and one end of the friction member 30 in the axial direction is movably connected to the first mounting groove 11. This arrangement enables the first caliper 10 and the friction member 30 to move relative to each other, and the other end of the friction member 30 in the axial direction is movably connected to the second mounting groove 21. This arrangement enables the second caliper 20 and the friction member 30 to move relative to each other; when one end of the friction member 30 in the axial direction can only rotate in the first mounting groove 11, the other end of the friction member 30 in the axial direction can rotate in the second mounting groove 21 and translate along the axial direction of the brake disc, so that when the first caliper 10 approaches the brake disc, the friction member 30 translates accordingly. When the first abutment surface of the second caliper 20 abuts against the friction member 30 and is stuck, the friction member 30 can provide sliding friction to the brake disc; when one end of the friction member 30 in the axial direction can rotate and deflect in the first mounting groove 11, the other end of the friction member 30 in the axial direction can also rotate and deflect in the second mounting groove 21. In this way, when the first caliper 10 approaches the brake disc, only the part of the friction member 30 close to the first mounting groove 11 approaches the brake disc, and the friction member 30 is allowed to rotate around its own axis, so that the friction member 30 can provide rolling friction to the brake disc. Later, when the second caliper 20 approaches the brake disc, the part of the friction member 30 close to the second mounting groove 21 approaches the brake disc, and the friction member 30 is allowed to rotate around its own axis. When the first abutment surface of the second caliper 20 abuts against the friction member 30 and is stuck, the friction member 30 can provide sliding friction to the brake disc.

[0034] In particular, a first abutment surface is provided on the second caliper 20. When the first caliper 10 and the second caliper 20 are both close to the brake disc, the first abutment surface prevents the friction member 30 from rotating, so that the friction member 30 can provide sliding friction force to the brake disc, thereby effectively braking the vehicle.

[0035] For example, there are two first calipers 10 and two second calipers 20. The two first calipers 10 are located on both sides of the brake disc, and the two second calipers 20 are located on the side of the first caliper 10 away from the brake disc. This arrangement can keep the caliper 100 lateral balanced and improve the heat dissipation efficiency of the brake disc, thereby suppressing and compensating for the eccentric wear effect of the brake disc, and further improving the stability of vehicle braking.

[0036] In addition, if Figure 1 and Figure 2As shown, the friction member 30 can roll and slide along the axial end face of the brake disc, and a friction portion 31 is formed on the central circumferential surface of the friction member 30, which can contact the axial end face of the brake disc to provide friction to the end face of the brake disc when in contact; a first mounting portion 32 is provided at one axial end of the friction member 30, and the first mounting portion 32 can be rotatably mounted in the first mounting groove 11, and a part of the first mounting portion 32 forms a second abutting surface that abuts with the first abutting surface; a second mounting portion 33 is provided at the other end of the friction member body, and the second mounting portion 33 can be movably mounted in the second mounting groove 21 and can move along the axial direction of the brake disc relative to the second mounting groove 21.

[0037] It can be understood that, in one embodiment of the present application, the friction member 30 can roll and slide along the end surface in the axial direction of the brake disc, which not only increases the contact area between the friction member 30 and the brake disc, but also enables the friction member 30 to provide rolling friction and sliding friction to the brake disc. The friction portion 31 is located between the first caliper 10 and the second caliper 20. This arrangement allows the friction portion 31 to approach the brake disc as the first caliper 10 and the second caliper 20 approach the brake disc, so that the friction portion 31 can brake the brake disc. A first mounting portion 32 is provided at one end of the friction portion 31, and a second mounting portion 33 is provided at the other end of the friction portion 31. The first mounting portion 32 and the first mounting groove 11 are rotatably matched, and there is a gap between the second mounting groove 21 and the second mounting groove 33. The first mounting portion 32 can rotate relative to the first mounting groove 11, and the second mounting portion 33 can rotate and move relative to the second mounting groove 21. This arrangement allows the first mounting portion 32 to rotate relative to the first caliper 10, and the second mounting portion 33 to move in the second mounting groove 21, so that when the first caliper 10 approaches the brake disc, the friction portion 31 moves along the axial direction of the brake disc with the first caliper 10 and performs rolling braking on the brake disc, and after the first caliper 10 approaches the brake disc, the second caliper 20 continues to approach the brake disc, the first abutting surface and the second abutting surface abut and cooperate, and the friction portion 31 performs sliding braking on the brake disc, thereby enabling the friction member 30 to transition from rolling braking to sliding braking on the brake disc.

[0038] Moreover, the first mounting portion 32 can rotate around its own axis relative to the first mounting slot 11, and the second mounting portion 33 can rotate around its own axis relative to the second mounting slot 21. Only when the first caliper 10 is close to the brake disc, the part of the friction portion 31 close to the first caliper 10 performs rolling friction braking on the brake disc. When the first caliper 10 is close to the brake disc, the second caliper 20 is also close to the brake disc, and the friction portion 31 can perform sliding friction braking on the brake disc, so that the friction portion 31 can transition from rolling friction braking to sliding friction braking on the brake disc, thereby improving the smoothness of the vehicle braking process and improving the NVH performance of the vehicle.

[0039] For example, the surface of the rolling part is provided with a semi-hot-melt rubber material, which can make the rolling part have a vibration isolation function, thereby reducing the exciting force transmitted by the brake disc to the first mounting part 32 and the second mounting part 33, and further improving the NVH performance of the vehicle.

[0040] In particular, if Figure 1 and Figure 2 As shown, the friction portion 31 is configured in a conical shape, and the diameter of the friction portion 31 at one end close to the first mounting groove 11 is larger than the diameter of the friction portion 31 at one end close to the second mounting groove 21 .

[0041] It can be understood that the friction portion 31 is conical, with the bottom of the cone close to the first mounting groove 11 and the top of the cone close to the second mounting groove 21, and the diameter of the end of the friction portion 31 close to the first mounting groove 11 is larger than the diameter of the end of the friction portion 31 close to the second mounting groove 21. The diameter of the friction portion 31 decreases from close to the first mounting groove 11 to close to the second mounting groove 21. This arrangement can enable the conical friction portion 31 to have a self-amplifying function. As the angle between the conical surface and the brake disc gradually becomes smaller, the braking torque of the friction portion 31 on the brake disc gradually increases, which not only increases the material selection range of the friction member 30, but also improves the braking effect of the friction member 30 on the brake disc. When the first caliper 10 is close to the brake disc, the second caliper 20 is also close to the brake disc, and the friction portion 31 can perform sliding friction braking on the brake disc, so that the friction portion 31 can transition from rolling friction braking to sliding friction braking on the brake disc, thereby improving the smoothness of the vehicle braking process and improving the NVH performance of the vehicle.

[0042] In addition, if Figure 1 and Figure 2 As shown, the first caliper 10 includes: a first plate 12 and a second plate 13, the second plate 13 is set at an angle to the first plate 12 and extends away from the brake disc, and the first mounting groove 11 is set on the second plate 13; the second caliper 20 includes: a third plate 22 and a fourth plate 23, the third plate 22 is set on the side of the friction member 30 away from the brake disc, and the first abutting surface is set on the third plate 22, the fourth plate 23 is set at an angle to the third plate 22, and extends in the direction toward the brake disc, and the second mounting groove 21 is set on the fourth plate 23.

[0043] That is to say, the first plate body 12 and the second plate body 13 constitute the main structure of the first caliper 10, the second plate body 13 is set at an angle to the first plate body 12, the second plate body 13 is connected to the side of the first plate body 12 close to the friction part 31, and the second plate body 13 is bent and extended relative to the first plate body 12 toward the side away from the brake disc. This arrangement can make the cross-section of the first caliper 10 "L"-shaped, thereby improving the structural strength of the first caliper 10, and multiple first mounting grooves 11 are set on the second plate body 13, and a first mounting part 32 is set in one first mounting groove 11, so that the first caliper 10 and the first mounting part 32 can move together.

[0044] The third plate 22 and the fourth plate 23 constitute the main structure of the second caliper 20. The third plate 22 is located on the side of the first plate 12 away from the brake disc. The fourth plate 23 is connected to the side of the third plate 22 away from the first mounting groove 11. Moreover, the fourth plate 23 is bent and extended relative to the third plate 22 toward the side close to the brake disc. This arrangement can make the cross-section of the second caliper 20 "L"-shaped, thereby improving the structural strength of the second caliper 20. The side of the third plate 22 close to the second plate 13 forms a first abutment surface. , so that the third plate 22 and the second plate 13 can abut against each other, and a plurality of second mounting grooves 21 are provided on the fourth plate 23, and a second mounting portion 33 is provided in one second mounting groove 21, so that the second caliper 20 and the second mounting portion 33 can move relative to each other, and the friction portion 31 is located between the second plate 13 and the fourth plate 23, so that the first caliper 10 and the second caliper 20 can approach or move away from the brake disc, driving the friction portion 31 to approach or move away from the brake disc, thereby facilitating the friction portion 31 to perform friction braking on the brake disc.

[0045] In particular, if Figure 1 and Figure 2 As shown, a plurality of first mounting grooves are provided on the second plate 13 at intervals along its circumferential direction, and a plurality of second mounting grooves 21 are provided on the fourth plate 23 at intervals along its circumferential direction.

[0046] It can be understood that multiple first mounting grooves 11 are evenly spaced along the circumferential direction of the second plate body 13, and multiple second mounting grooves 21 are evenly spaced along the circumferential direction of the fourth plate body 23. A friction member 30 connects a first mounting groove 11 and a second mounting groove 21, so that the first mounting groove 11 and the second mounting groove 21 can limit the friction member 30, and also facilitate the rotation of the friction member 30 around its own axis. Moreover, the first mounting groove 11 and the second mounting groove 21 correspond one-to-one to the friction member 30, thereby improving the smoothness of the vehicle braking process and thus improving the NVH performance of the vehicle.

[0047] In addition, if Figure 1 and Figure 2As shown, the caliper body also includes: a first actuator 41 and a second actuator 42. The first actuator 41 is connected to the first caliper 10 to drive the first caliper 10 to move axially along the brake disc, and the second actuator 42 is connected to the second caliper 20 to drive the second caliper 20 to move axially along the brake disc. The second actuator 42 is spaced apart from the first caliper 10, or the second actuator 42 passes through the first caliper 10.

[0048] It can be understood that the first actuator 41 and the second actuator 42 constitute the main structure of the actuator 40, the first actuator 41 drives the movement of the first caliper 10, and the second actuator 42 drives the movement of the second caliper 20, so that the first caliper 10 and the second caliper 20 can both move along the axial direction of the brake disc, and the second actuator 42 is spaced apart from the first caliper 10, or the second actuator 42 passes through the first caliper 10. This arrangement can prevent the second actuator 42 and the first caliper 10 from affecting each other, thereby facilitating the separation of the first actuator 41 and the second actuator 42. The first and second calipers 10 and 20 are driven to move. When the first actuator 41 drives the first plate 12 toward the brake disc, the portion of the friction member 30 near the first caliper 10 performs rolling friction braking on the brake disc. When the first caliper 10 approaches the brake disc, the second actuator 42 drives the third plate 22 also toward the brake disc, and the friction member 30 can perform sliding friction braking on the brake disc. This allows the friction member 30 to transition from rolling friction braking to sliding friction braking on the brake disc, thereby improving the smoothness of the vehicle's braking process and the vehicle's NVH performance. For example, the first and second actuators 41 and 42 are oil cylinders, pneumatic cylinders, or stepper motors, so that the first and second actuators 41 and 42 can respectively control the first and second calipers 10 and 20 to approach or move away from the brake disc.

[0049] When there are two first calipers 10 and two second calipers 20 , each end of the first actuator 41 is fixedly connected to a first caliper 10 , and each end of the second actuator 42 is fixedly connected to a second caliper 20 .

[0050] Alternatively, as Figure 1 and Figure 2 As shown, there are multiple first actuators 41 and multiple second actuators 42, and the multiple first actuators 41 and the multiple second actuators 42 are arranged alternately.

[0051] That is to say, multiple first actuators 41 and multiple second actuators 42 are arranged in a cross-spaced manner, that is, one first actuator 41 is arranged with one second actuator 42, and the first actuator 41 and the second actuator 42 are arranged in a cross-spaced manner in sequence. Such an arrangement can enable the first actuator 41 and the second actuator 42 to produce an asynchronous action strategy, thereby facilitating the first actuator 41 to drive the first caliper 10, and the second actuator 42 to drive the second caliper 20, thereby facilitating the brake caliper 100 to brake the brake disc.

[0052] In particular, if Figure 1 and Figure 2 As shown, the first mounting groove 11 is cylindrical, so that the first mounting portion 32 is conveniently installed in the first mounting groove 11, and then the first mounting portion 32 follows the first caliper 10 when the first caliper 10 moves. The second mounting groove 21 is a long strip close to the direction of the brake disc. This arrangement allows the second mounting portion 33 to follow the first mounting portion 32 to move after the first caliper 10 approaches the brake disc, thereby ensuring the braking effect of the friction portion 31 on the brake disc, and thus improving the NVH performance of the vehicle.

[0053] Of course, in addition to the above-mentioned shapes, the first mounting groove 11 and the second mounting groove 21 can also be set to a special-shaped structure similar to an hourglass shape, so that the first mounting portion 32 can rotate and deflect in the first mounting groove 11, and the second mounting portion 33 can rotate and deflect in the second mounting groove 21. When the first caliper 10 moves toward the brake disc, the friction member 30 as a whole can swing accordingly, so that the part of the friction portion 31 close to the first mounting portion 32 gradually approaches the brake disc. When the second caliper 20 moves toward the brake disc, the friction member 30 as a whole swings again, so that the part of the friction portion 31 close to the second mounting portion 33 gradually approaches the brake disc.

[0054] Specifically, when the vehicle brakes, the driver steps on the brake pedal, and the first actuator 41 begins to clamp, that is, the brake fluid in the first actuator 41 returns to the oil tank in the brake system. As the brake fluid flows out of the first actuator 41, the first calipers 10 on both sides of the brake disc gradually approach the brake disc, thereby realizing the clamping action of the first caliper 10. At this time, the friction member 30 provides a rolling friction force to the brake disc. After a certain period of time, the second caliper 20 begins to clamp, that is, the brake fluid in the second actuator 42 returns to the oil tank in the brake system. As the brake fluid flows out of the second actuator 40, the second caliper 20 gradually approaches the brake disc. As the braking clamping force continues to increase, the rolling member and the brake disc form a stuck state. At this time, the friction member 30 provides a sliding friction force to the brake disc.

[0055] When the vehicle is about to move, the second actuator 42 begins to relax, that is, the brake fluid is re-injected into the second actuator 42 from the brake system's oil tank. As the brake fluid flows into the second actuator 42, the second caliper 20 gradually moves away from the brake disc, thereby achieving the relaxation of the second caliper 20. At this time, only the first caliper 10 is close to the brake disc, and a part of the friction member 30 close to the first mounting groove 11 is in contact with the brake disc. After a certain period of time, the first actuator 41 begins to relax, that is, the brake fluid is re-injected into the first actuator 41 from the brake system's oil tank. As the brake fluid flows into the first actuator 41, the first caliper 10 gradually moves away from the brake disc, thereby achieving the relaxation of the first caliper 10, and then the normal movement of the vehicle can be achieved.

[0056] The brake of the present invention comprises a brake disc and the brake caliper 100 of the above embodiment, which is disposed on the outer periphery of the brake disc. By configuring the friction member 30 to roll along the surface of the brake disc, the friction member 30 provides friction to the brake disc, which not only transitions the braking process from rolling friction to sliding friction but also improves the smoothness of the vehicle's braking process, thereby enhancing the vehicle's NVH performance.

[0057] The vehicle according to the present invention includes the brake of the above embodiment. Such a configuration enables the brake to brake the vehicle, thereby improving the safety of the vehicle.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0059] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. In the description of the present invention, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0060] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A brake caliper (100), comprising a friction member (30) for providing friction to a brake disc, characterized in that: The friction member (30) can roll and slide along the surface of the brake disc.

2. The brake caliper (100) according to claim 1, characterized in that Also includes: A caliper body, wherein a plurality of friction members (30) are provided on the caliper body; The caliper body comprises: a first caliper (10); A second caliper (20), the first caliper (10) and the second caliper (20) can move along the axial direction of the brake disc, the first caliper (10) is provided with a plurality of first mounting grooves (11) corresponding to the friction member (30) one by one, and one end of the friction member (30) in the axial direction is movably connected to the first mounting groove (11); the friction member (30) is located between the second caliper (20) and the brake disc, the second caliper (20) is provided with a plurality of second mounting grooves (21) corresponding to the friction member (30) one by one, and the other end of the friction member (30) in the axial direction is movably connected to the second mounting groove (21), the friction member (30) can rotate around its own axis, and the second caliper (20) is also provided with a first abutting surface to prevent the friction member (30) from rotating when abutting against the friction member (30).

3. The brake caliper (100) according to claim 2, characterized in that The friction member (30) can roll and slide along the axial end face of the brake disc, and a friction portion (31) is formed on the central circumference of the friction member (30), and the friction portion (31) can contact the axial end face of the brake disc to provide friction to the end face of the brake disc when in contact; a first mounting portion (32) is provided at one axial end of the friction member (30), and the first mounting portion (32) is rotatably mounted in the first mounting groove (11), and a part of the first mounting portion (32) forms a second abutting surface that abuts against the first abutting surface; a second mounting portion (33) is provided at the other end of the friction member body, and the second mounting portion (33) is movably mounted in the second mounting groove (21) and can move along the axial direction of the brake disc relative to the second mounting groove (21).

4. The brake caliper (100) according to claim 3, characterized in that The friction portion (31) is configured in a conical shape, and the diameter of one end of the friction portion (31) close to the first mounting groove (11) is larger than the diameter of one end of the friction portion (31) close to the second mounting groove (21).

5. The brake caliper (100) according to claim 2, characterized in that The first caliper (10) comprises: A first plate (12); a second plate (13), the second plate (13) being arranged at an angle to the first plate (12) and extending in a direction away from the brake disc, the first mounting groove (11) being arranged on the second plate (13); The second caliper (20) comprises: a third plate (22), the third plate (22) being arranged on a side of the friction member (30) away from the brake disc, and the first abutting surface being arranged on the third plate (22); A fourth plate (23) is arranged at an angle with the third plate (22) and extends in a direction toward the brake disc, and the second mounting groove (21) is arranged on the fourth plate (23).

6. The brake caliper (100) according to claim 5, characterized in that The second plate body (13) is provided with a plurality of first mounting grooves (11) at intervals along its circumferential direction, and the fourth plate body (23) is provided with a plurality of second mounting grooves (21) at intervals along its circumferential direction.

7. The brake caliper (100) according to claim 2, characterized in that The caliper body also includes: a first actuator (41), the first actuator (41) being connected to the first caliper (10) to drive the first caliper (10) to move axially along the brake disc; A second actuator (42), the second actuator (42) is connected to the second caliper (20) to drive the second caliper (20) to move axially along the brake disc, the second actuator (42) is spaced apart from the first caliper (10), or the second actuator (42) passes through the first caliper (10).

8. The brake caliper (100) according to claim 7, characterized in that There are multiple first actuators (41) and multiple second actuators (42), and the multiple first actuators (41) and the multiple second actuators (42) are arranged alternately.

9. A brake, characterized in that: The invention comprises a brake disc and a brake caliper (100) according to any one of claims 1 to 8, wherein the brake caliper (100) is arranged on the outer periphery of the brake disc.

10. A vehicle, characterized in that: include: The brake according to claim 9.

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