Brake assembly of vehicle and vehicle

Abstract

The utility model discloses a brake assembly of a vehicle and the vehicle. A mounting space is defined by a caliper body; at least part of the transmission assembly is arranged in the mounting space, the transmission assembly comprises a connecting piece which sleeves a transmission shaft, the transmission shaft can drive the connecting piece to move in the extension direction of the transmission shaft when rotating, and the actuator comprises a driving piece which is in transmission connection with the transmission shaft and can drive the transmission shaft to rotate; the anti-rotation ring is arranged in the mounting space and arranged on the outer side of the connecting piece in a sleeving mode, the anti-rotation ring is fixedly connected with the inner wall of the mounting space, and an anti-rotation part is arranged on the inner side of the anti-rotation ring and is in anti-rotation fit with the connecting piece. Therefore, the driving piece can drive the transmission shaft to rotate, so that the connecting piece moves in the extending direction of the transmission shaft, the brake assembly can respond quickly, the anti-rotation part of the anti-rotation ring is matched with the connecting piece in an anti-rotation mode, the probability that the connecting piece (a ball screw nut) rotates can be reduced, the braking performance of a vehicle can be improved, and the service life of the vehicle is prolonged. And the safety of the vehicle can be improved.

Description

Technical Field

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

[0002] In related technologies, the vehicle's brakes use EMB (Electromechanical-Braking) braking instead of hydraulic braking, which can reduce response time and improve braking effect. However, the current EMB brake design is unreasonable, which causes the ball screw nut of the EMB brake to easily rotate, affecting the vehicle's braking performance and reducing vehicle safety. 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 vehicle brake assembly that can reduce the probability of rotation of the ball screw nut, improve the braking performance of the vehicle, and thus enhance the safety performance of the vehicle.

[0004] The utility model further provides a vehicle.

[0005] According to the utility model, the brake assembly of a vehicle includes: a caliper body, which defines an installation space; an actuator and a transmission assembly, at least part of which is arranged in the installation space, and the transmission assembly includes: a drive shaft and a connecting member, the connecting member is sleeved on the drive shaft, and when the drive shaft rotates, it can drive the connecting member to move along the extension direction of the drive shaft, the actuator includes a driving member, which is connected to the drive shaft and can drive the drive shaft to rotate; an anti-rotation ring, the anti-rotation ring is arranged in the installation space and sleeved on the outside of the connecting member, the anti-rotation ring is fixedly connected to the inner wall of the installation space, the inner side of the anti-rotation ring has an anti-rotation part, and the anti-rotation part cooperates with the connecting member to prevent rotation.

[0006] According to the brake assembly of the vehicle of the present invention, the drive shaft can be driven to rotate through the driving member to move the connecting member along the extension direction of the drive shaft, which can enable the brake assembly to respond quickly. By making the anti-rotation part of the anti-rotation ring cooperate with the anti-rotation part of the connecting member, the probability of the connecting member (ball screw nut) rotating can be reduced, which is beneficial to improving the braking performance of the vehicle and improving the safety of the vehicle.

[0007] In some examples of the present invention, there are multiple anti-rotation parts, and the multiple anti-rotation parts are arranged in a circle; and / or, the surface of the anti-rotation part facing the connecting part forms a first anti-rotation surface, and the outer surface of the connecting part forms a second anti-rotation surface, and the first anti-rotation surface cooperates with the second anti-rotation surface to prevent rotation.

[0008] In some examples of the present invention, the connecting member has a shaft shoulder, and along the extension direction of the transmission shaft, the shaft shoulder and the orthographic projection of the anti-rotation portion have an overlapping area.

[0009] In some examples of the present invention, the brake assembly of the vehicle also includes: a bearing seat, a first thrust bearing and a force sensor, the caliper includes a caliper body and a first annular protrusion, the caliper body defines the installation space, the first annular protrusion is arranged in the installation space and is connected to the inner wall of the caliper body, the bearing seat, the first thrust bearing and the force sensor are all arranged in the installation space, the bearing seat abuts the drive shaft, the force sensor abuts the first annular protrusion, the first thrust bearing is sleeved on the bearing seat and is located between the force sensor and the bearing seat.

[0010] In some examples of the present invention, the transmission shaft has a first mating arc surface facing the bearing seat, the bearing seat has a second mating arc surface, and the first mating arc surface is mated with the second mating arc surface;

[0011] And / or, the bearing seat has a mounting through hole, the transmission shaft is passed through the mounting through hole, the inner wall of the mounting through hole has a plurality of mating grooves, the plurality of mating grooves are arranged around, the transmission shaft has a plurality of mating protrusions, and the plurality of mating protrusions correspond one-to-one to the plurality of mating grooves.

[0012] In some examples of the present invention, the caliper body further includes: a second annular protrusion, which is connected to the first annular protrusion and extends toward the connecting member, and at least a portion of the force sensor is located between the second annular protrusion and the inner wall of the caliper body.

[0013] In some examples of the present invention, the vehicle brake assembly further includes: a spherical joint bearing, which is sleeved on the transmission shaft and located inside the second annular protrusion.

[0014] In some examples of the present invention, the brake assembly of the vehicle also includes: a second thrust bearing, an elastic member and a stop member, the second thrust bearing, the elastic member and the stop member are all arranged in the installation space and are all sleeved on the transmission shaft, the stop member is fixedly connected to the transmission shaft, the second thrust bearing is located between the stop member and the first annular protrusion, and the elastic member is located between the stop member and the second thrust bearing.

[0015] In some examples of the present invention, the caliper body has a first positioning portion, and the actuator has a second positioning portion, and the first positioning portion can be positioned and matched with the second positioning portion.

[0016] The vehicle according to the present invention includes the above-mentioned vehicle brake assembly.

[0017] 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

[0018] 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:

[0019] Figure 1 is an exploded view of a brake assembly according to an embodiment of the present utility model;

[0020] Figure 2 is a cross-sectional view of a partial structure of a brake assembly according to an embodiment of the present utility model;

[0021] Figure 3 1 is an exploded schematic diagram of an anti-rotation ring and a transmission assembly according to an embodiment of the present utility model;

[0022] Figure 4 is a cross-sectional view of a transmission assembly and a bearing seat according to an embodiment of the present utility model;

[0023] Figure 5 1 is an exploded schematic diagram of a transmission assembly and a bearing seat according to an embodiment of the present utility model;

[0024] Figure 6 It is a schematic diagram of the actuator and the clamp body according to an embodiment of the present utility model.

[0025] Reference numerals:

[0026] Brake assembly 100;

[0027] Clamp body 10; clamp body 11; installation space 13; first positioning portion 15; first annular protrusion 16; second annular protrusion 17;

[0028] Actuator 20; driving member 21; output shaft 22; second positioning portion 23;

[0029] Transmission assembly 30;

[0030] Transmission shaft 40; first connecting portion 41; second connecting portion 42; first matching arc surface 43; matching protrusion 44;

[0031] Anti-rotation ring 50; anti-rotation portion 51; first anti-rotation surface 52;

[0032] Connecting member 60; second anti-rotation surface 61; shoulder 62;

[0033] Bearing seat 70; mounting through hole 71; matching groove 72; second matching arc surface 73;

[0034] First thrust bearing 81; first gasket 82; force sensor 83; spherical bearing 84; second thrust bearing 85; elastic member 86; stopper 87; second gasket 88;

[0035] Piston dust cover 91; piston end cover 92; first sealing member 93; second sealing member 94. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] Reference below Figures 1-6 A brake assembly 100 for a vehicle according to an embodiment of the present invention is described.

[0038] like Figure 1-Figure 3 As shown, the brake assembly 100 according to the embodiment of the present invention includes: a caliper body 10 , an actuator 20 , a transmission assembly 30 and an anti-rotation ring 50 .

[0039] The caliper body 10 defines an installation space 13; at least part of the transmission assembly 30 is disposed in the installation space 13, and the transmission assembly 30 includes: a transmission shaft 40 and a connecting member, wherein the connecting member 60 is sleeved on the transmission shaft 40, and when the transmission shaft 40 rotates, the connecting member 60 can be driven to extend along the extension direction of the transmission shaft 40 (i.e. Figure 2 The actuator 20 moves in the X direction as shown, and includes a driving member 21, which is in transmission connection with the transmission shaft 40 and can drive the transmission shaft 40 to rotate; an anti-rotation ring 50 is provided in the installation space 13 and is sleeved on the outside of the connecting member 60, and the anti-rotation ring 50 is fixedly connected to the inner wall of the installation space 13, and an anti-rotation portion 51 is provided on the inner side of the anti-rotation ring 50, and the anti-rotation portion 51 cooperates with the connecting member 60 to prevent rotation.

[0040] As some embodiments of the present application, part of the transmission assembly 30 is provided in the installation space 13. As some embodiments of the present application, the entire transmission assembly 30 is provided in the installation space 13. The transmission assembly 30 includes a transmission shaft 40 and a connecting member 60. The connecting member 60 is sleeved on the transmission shaft 40. The transmission shaft 40 and the connecting member 60 are in transmission connection so that when the transmission shaft 40 rotates, the connecting member 60 can be driven to extend along the extension direction of the transmission shaft 40 (i.e. Figure 2In some embodiments of the present application, the transmission shaft 40 is configured as a ball screw, and the connecting member 60 is configured as a ball screw nut. The ball screw and the ball screw nut are in driving cooperation so that when the transmission shaft 40 rotates, the connecting member 60 can be driven to move along the extension direction of the transmission shaft 40 (i.e. Figure 2 The X direction shown in FIG.

[0041] As some embodiments of this application, Figure 2 As shown, the transmission shaft 40 includes a first connecting portion 41 and a second connecting portion 42 , which are connected to each other, wherein one end of the first connecting portion 41 away from the second connecting portion 42 has a spline groove.

[0042] The actuator 20 includes a driver 21, which may be, but is not limited to, a brushless motor, a reduction motor, or the like. In some embodiments of the present application, the driver 21 is a reduction motor. The driver 21 is in driving connection with a transmission shaft 40. The driving connection between the driver 21 and the transmission shaft 40 may be, but is not limited to, a spline connection, a coupling connection, or the like. In some embodiments of the present application, the driver 21 is in driving connection with the transmission shaft 40 via a spline connection, and the driver 21 is capable of driving the transmission shaft 40 to rotate.

[0043] As some embodiments of this application, Figure 6 As shown, the driving member 21 has an output shaft 22, and the output shaft 22 and the transmission shaft 40 are connected by a spline. Specifically, the transmission shaft 40 includes a first connecting portion 41 and a second connecting portion 42, wherein the first connecting portion 41 has a spline groove at one end away from the second connecting portion 42, and the output shaft 22 has a spline shaft at one end that cooperates with the transmission shaft 40. The spline groove and the spline shaft cooperate with each other to make the output shaft 22 and the transmission shaft 40 transmission connected, and a gap is reserved between the spline groove and the spline shaft. Such an arrangement can reduce the probability of overload on the output shaft 22.

[0044] As some embodiments of the present application, the actuator 20 includes: a driving member 21, a parking mechanism and a controller, etc. The controller can control the torque output by the driving member 21 to transmit the torque to the drive shaft 40, thereby controlling the magnitude of the braking force. The parking mechanism can be used to reduce the risk of sliding when the vehicle stops.

[0045] The anti-rotation ring 50 is arranged in the installation space 13, and the anti-rotation ring 50 is sleeved on the outside of the connecting piece 60. The anti-rotation ring 50 is fixedly connected to the inner wall of the installation space 13. The way in which the anti-rotation ring 50 is fixedly connected to the inner wall of the installation space 13 may be but is not limited to bonding, bolting, etc. As some embodiments of the present application, the anti-rotation ring 50 is fixedly connected to the inner wall of the installation space 13 by interference fit, and the anti-rotation ring 50 is pressed into the installation space 13 by press-fitting. This arrangement can facilitate the installation and fixing of the anti-rotation ring 50, so that the axis of the anti-rotation ring 50 is colinear with the axis of the caliper body 10, so that the caliper body 10 and the anti-rotation ring 50 do not rotate relative to each other, and the coaxiality of the caliper body 10 and the anti-rotation ring 50 can be ensured, and the design difficulty of the caliper body 10 can be reduced from a structural point of view.

[0046] like Figure 3 As shown, the inner side of the anti-rotation ring 50 has an anti-rotation portion 51, and the anti-rotation portion 51 cooperates with the connecting member 60 to prevent rotation. Specifically, the anti-rotation portion 51 can form a stop with the connecting member 60 to prevent the connecting member 60 and the caliper body 10 from rotating relative to each other. As some embodiments of the present application, the anti-rotation portion 51 has an anti-rotation groove, and the connecting member 60 has an anti-rotation protrusion. The anti-rotation groove and the anti-rotation protrusion cooperate with each other to prevent the connecting member 60 and the caliper body 10 from rotating relative to each other.

[0047] As some embodiments of the present application, the vehicle brake assembly 100 further includes: a first seal 93 and a second seal 94, which are arranged along the extension direction of the transmission shaft 40 (ie Figure 2 The caliper body 10 has a first sealing groove at one end close to the first connecting portion 41, and a second sealing groove at one end close to the second connecting portion 42. The first sealing member 93 is at least partially arranged in the first sealing groove, and the second sealing member 94 is at least partially arranged in the second sealing groove. This arrangement can improve the sealing performance of the vehicle brake assembly 100.

[0048] As some embodiments of the present application, the vehicle brake assembly 100 further includes: a piston dust cover 91 and a piston end cover 92. The piston dust cover 91 and the piston end cover 92 are both arranged in the installation space 13. Such an arrangement can improve the dustproof performance of the vehicle brake assembly 100.

[0049] As some embodiments of the present application, the vehicle brake assembly 100 further includes: a friction plate and a brake disc, the connecting member 60 can push the friction plate, and the friction plate can clamp the brake disc to brake the vehicle.

[0050] It should be noted that when the vehicle needs to brake, by making the driving member 21 connected to the transmission shaft 40 and capable of driving the transmission shaft 40 to rotate, the connecting member 60 can be moved along the extension direction of the transmission shaft 40 (i.e. Figure 2X direction shown), under the action of the anti-rotation ring 50, the connecting member 60 does not rotate but only moves linearly, and the connecting member 60 moves along the extension direction of the transmission shaft 40 (i.e. Figure 2 The movement in the X direction (shown) pushes the friction pad to clamp the brake disc, thereby achieving the braking function of the vehicle.

[0051] When the vehicle brake is released, the driving member 21 drives the transmission shaft 40 to rotate in the opposite direction, so that the connecting member 60 is rotated along the extension direction of the transmission shaft 40 (ie Figure 2 The X direction shown in the figure moves away from the friction plate, and the friction plate releases the brake disc to release the brake.

[0052] As some embodiments of the present application, by stepping on the brake pedal of the vehicle, an electronic signal can be directly transmitted to the actuator 20, and the actuator 20 can immediately drive the drive shaft 40 to rotate through the driving member 21 to quickly clamp the friction plate to the brake disc. This setting can reduce the response time of the vehicle's brake assembly 100.

[0053] Thus, the drive shaft 40 can be driven to rotate through the driving member 21, so that the connecting member 60 moves along the extension direction of the drive shaft 40, and the brake assembly 100 can respond quickly. By making the anti-rotation portion 51 of the anti-rotation ring 50 cooperate with the connecting member 60 to prevent rotation, the probability of the connecting member 60 rotating can be reduced, which is beneficial to improving the braking performance of the vehicle and improving the safety of the vehicle.

[0054] In some embodiments of the present invention, Figure 3 As shown, there are multiple anti-rotation parts 51, and the multiple anti-rotation parts 51 are arranged in a circle; and / or, a first anti-rotation surface 52 is formed on the surface of the anti-rotation part 51 facing the connecting part 60, and a second anti-rotation surface 61 is formed on the outer surface of the connecting part 60, and the first anti-rotation surface 52 cooperates with the second anti-rotation surface 61 to prevent rotation.

[0055] Among them, the number of anti-rotation parts 51 can be but not limited to two, three, four, etc. As some embodiments of the present application, the number of anti-rotation parts 51 is three, and the three anti-rotation parts 51 are arranged in a surrounding manner. Such an arrangement can further reduce the probability of rotation of the connecting part 60, which is beneficial to improving the reliability of the vehicle's brake assembly 100.

[0056] A first anti-rotation surface 52 is formed on the surface of the anti-rotation portion 51 facing the connecting member 60, and a second anti-rotation surface 61 is formed on the outer surface of the connecting member 60. In some embodiments of the present application, both the first anti-rotation surface 52 and the second anti-rotation surface 61 are constructed as planes. The first anti-rotation surface 52 abuts against the second anti-rotation surface 61, thereby preventing the first anti-rotation surface 52 and the second anti-rotation surface 61 from rotating. This reduces the probability of rotation of the connecting member 60, thereby improving the reliability of the vehicle brake assembly 100. This arrangement also facilitates the manufacture of the anti-rotation ring 50 and the connecting member 60, thereby reducing the difficulty of producing the vehicle brake assembly 100.

[0057] In some embodiments of the present invention, Figure 3 As shown, the connecting member 60 has a shoulder 62, which extends along the extension direction of the transmission shaft 40 (ie Figure 2 In the X direction shown in FIG, the shoulder 62 and the orthographic projection of the anti-rotation portion 51 have an overlapping area.

[0058] Specifically, a plane is set, which is parallel to the extension direction of the transmission shaft 40 (ie Figure 2 The normal of the plane is perpendicular to the extension direction of the transmission shaft 40 (ie Figure 2 The orthographic projection of the shoulder 62 on the plane and the orthographic projection of the anti-rotation portion 51 on the plane have an overlapping area.

[0059] In this arrangement, when the connector 60 retracts too far, the shoulder 62 can stop the connector 60 to reduce the risk of the connector 60 hitting other components and causing damage to other components, and reduce the risk of the connector 60 falling off, thereby improving the reliability of the vehicle's brake assembly 100.

[0060] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the vehicle's brake assembly 100 also includes: a bearing seat 70, a first thrust bearing 81 and a force sensor 83, the caliper body 10 includes: a caliper body 11 and a first annular protrusion 16, the caliper body 11 defines an installation space 13, the first annular protrusion 16 is arranged in the installation space 13 and is connected to the inner wall of the caliper body 11, the bearing seat 70, the first thrust bearing 81, and the force sensor 83 are all arranged in the installation space 13, the bearing seat 70 abuts against the drive shaft 40, the force sensor 83 abuts against the first annular protrusion 16, the first thrust bearing 81 is sleeved on the bearing seat 70 and is located between the force sensor 83 and the bearing seat 70.

[0061] Among them, the first annular protrusion 16 is provided in the installation space 13, and the first annular protrusion 16 is connected to the inner wall of the caliper body 11. As some embodiments of the present application, the first annular protrusion 16 and the caliper body 11 are integrally formed, that is, the first annular protrusion 16 and the caliper body 11 are constructed as an integrally formed part. Such an arrangement can reduce the probability of fracture at the connection between the first annular protrusion 16 and the caliper body 11. As some embodiments of the present application, the transmission shaft 40 is provided through the first annular protrusion 16 and has a clearance fit with the first annular protrusion 16. Such an arrangement can reduce the amplitude of the swing of the transmission shaft 40.

[0062] The bearing seat 70, the first thrust bearing 81, and the force sensor 83 are all arranged in the installation space 13. The bearing seat 70 abuts against the transmission shaft 40. In other words, the bearing seat 70 contacts the transmission shaft 40. As some embodiments of the present application, along the extension direction of the transmission shaft 40 (i.e. Figure 2 The transmission shaft 40 includes a first connection portion 41 and a second connection portion 42, and the first connection portion 41 and the second connection portion 42 are connected to each other, wherein the first connection portion 41 is relatively close to the actuator 20, and the second connection portion 42 is relatively far away from the actuator 20, and the bearing seat 70 is in contact with one end of the second connection portion 42 toward the first connection portion 41, and the bearing seat 70 is sleeved on the transmission shaft 40.

[0063] The bearing seat 70 , the first thrust bearing 81 , and the force sensor 83 are all sleeved on the transmission shaft 40 . The force sensor 83 abuts against the first annular protrusion 16 . The first thrust bearing 81 is sleeved on the bearing seat 70 and located between the force sensor 83 and the bearing seat 70 .

[0064] As some embodiments of the present application, the vehicle brake assembly 100 also includes: a first gasket 82, which is arranged between the first thrust bearing 81 and the force sensor 83. This arrangement can improve the stability and reliability of force transmission between the first thrust bearing 81 and the force sensor 83, and can also reduce the probability of wear of the first thrust bearing 81 and the force sensor 83.

[0065] As some embodiments of the present application, the force sensor 83 is electrically connected to the vehicle controller, and the force sensor 83 can detect the magnitude of the braking force. When the vehicle needs to brake, the connecting member 60 extends along the extension direction of the transmission shaft 40 (i.e. Figure 2The movement of the connecting member 60 in the X direction (shown) will push the friction plate of the vehicle's brake assembly 100 to clamp the brake disc. Due to the action and reaction forces, the force applied by the connecting member 60 to the friction plate will be transmitted to the force sensor 83 along the transmission shaft 40, the bearing seat 70, and the first thrust bearing 81 in sequence. The force sensor 83 can feed back the signal to the vehicle controller to achieve closed-loop control of the brake assembly 100. In addition, when the brake is released, the driving member 21 drives the transmission shaft 40 to rotate in the opposite direction, so that the connecting member 60 moves along the extension direction of the transmission shaft 40 (i.e. Figure 2 The force sensor 83 is no longer subjected to the reaction force transmitted by the transmission shaft 40 due to the action and reaction forces (in the X direction shown in the figure), and the controller releases the braking force according to the control signal.

[0066] Such an arrangement can make the structure of the vehicle brake assembly 100 reasonable, facilitate the force sensor 83 to detect the force condition, facilitate the force sensor 83 to feedback the braking force, and help improve the reliability of the vehicle brake assembly 100.

[0067] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the transmission shaft 40 has a first matching arc surface 43 facing the bearing seat 70, and the bearing seat 70 has a second matching arc surface 73, and the first matching arc surface 43 matches the second matching arc surface 73;

[0068] And / or, the bearing seat 70 has a mounting through hole 71, the transmission shaft 40 is passed through the mounting through hole 71, the inner wall of the mounting through hole 71 has a plurality of mating grooves 72, the plurality of mating grooves 72 are arranged around, and the transmission shaft 40 has a plurality of mating protrusions 44, and the plurality of mating protrusions 44 correspond one-to-one to the plurality of mating grooves 72.

[0069] In which, the transmission shaft 40 has a first mating arc surface 43 facing the bearing seat 70, and the bearing seat 70 has a second mating arc surface 73 facing the transmission shaft 40. The first mating arc surface 43 and the second mating arc surface 73 can cooperate. Specifically, the first mating arc surface 43 is formed at the connection between the first connecting part 41 and the second connecting part 42 (in other words, the first mating arc surface 43 is formed at one end of the second connecting part 42 facing the first connecting part 41), and the bearing seat 70 is sleeved at the connection between the first connecting part 41 and the second connecting part 42, and the bearing seat 70 cooperates with the first mating arc surface 43 through the second mating arc surface 73.

[0070] Such a setting can make the matching form of the transmission shaft 40 and the bearing seat 70 reasonable, and the second matching arc surface 73 and the first matching arc surface 43 can swing around the center of the sphere, so as to reduce the probability of interference between the transmission shaft 40 and the caliper body 10 due to different axes after the caliper body 10 is deformed by force, which is beneficial to improving the structural rationality of the vehicle's brake assembly 100.

[0071] The bearing seat 70 has a mounting through hole 71, and the transmission shaft 40 can be passed through the mounting through hole 71 of the bearing seat 70. The inner wall of the mounting through hole 71 has a plurality of mating grooves 72. The number of mating grooves 72 can be but not limited to two, three, four, etc. The transmission shaft 40 has a plurality of mating protrusions 44. The number of mating protrusions 44 can be but not limited to two, three, four, etc. The plurality of mating protrusions 44 correspond one-to-one to the plurality of mating grooves 72. As some embodiments of the present application, the number of mating grooves 72 is eight, and the eight mating grooves 72 are arranged in a surrounding manner. The number of mating protrusions 44 is eight, and the eight mating grooves 72 are arranged one-to-one to the eight mating protrusions 44, and the eight mating grooves 72 can cooperate with the eight mating protrusions 44 to make the transmission shaft 40 match the bearing seat 70.

[0072] It should be noted that a certain gap needs to be left between the mating groove 72 and the mating protrusion 44. As some embodiments of the present application, the top wall of the mating protrusion 44 is spaced apart from the bottom wall of the corresponding mating groove 72, so that a certain gap is left between the mating groove 72 and the mating protrusion 44. As some embodiments of the present application, a gap is left between the side of the mating protrusion 44 and the side of the corresponding mating groove 72. Such an arrangement can reliably realize the transmission of torque, and can offset the swing of the drive shaft 40, which is beneficial to improving the reliability of the vehicle's brake assembly 100.

[0073] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the caliper body 10 further includes: a second annular protrusion 17 , which is connected to the first annular protrusion 16 and extends toward the connecting member 60 , and at least a portion of the force sensor 83 is located between the second annular protrusion 17 and the inner wall of the caliper body 11 .

[0074] Among them, the second annular protrusion 17 is connected to the first annular protrusion 16, and the connection method between the second annular protrusion 17 and the first annular protrusion 16 can be but is not limited to welding, bolt connection, etc. As some embodiments of the present application, the second annular protrusion 17 and the first annular protrusion 16 are integrally formed.

[0075] The second annular protrusion 17 extends toward the connecting member 60. Specifically, the second annular protrusion 17 extends toward the connecting member 60 (ie, Figure 2 The X direction shown is extended.

[0076] At least part of the force sensor 83 is located between the second annular protrusion 17 and the inner wall of the caliper body 11. In some embodiments of the present application, part of the force sensor 83 is located between the second annular protrusion 17 and the inner wall of the caliper body 11, or the entire force sensor 83 is located between the second annular protrusion 17 and the inner wall of the caliper body 11.

[0077] By connecting the second annular protrusion 17 to the first annular protrusion 16 and extending toward the connecting member 60, and positioning at least a portion of the force sensor 83 between the second annular protrusion 17 and the inner wall of the caliper body 11, the vehicle's brake assembly 100 can be easily provided with and installed with the force sensor 83, thereby improving the firmness and convenience of the installation of the force sensor 83 and reducing the difficulty of assembling the vehicle's brake assembly 100.

[0078] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the vehicle brake assembly 100 further includes a spherical plain bearing 84 , which is sleeved on the transmission shaft 40 and located inside the second annular protrusion 17 .

[0079] Among them, the joint bearing 84 has an interference fit with the caliper body 10, specifically, the joint bearing 84 has an interference fit with the first annular protrusion 16, and the joint bearing 84 has a clearance fit with the drive shaft 40, specifically, the joint bearing 84 has a clearance fit with the first connecting portion 41. During braking, the inner ring of the joint bearing 84 swings around the center of the sphere of the joint bearing 84 as the drive shaft 40 swings, reducing the probability of interference between the drive shaft 40 and the caliper body 10, which is beneficial to improving the reliability of the vehicle's brake assembly 100.

[0080] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the vehicle's brake assembly 100 also includes: a second thrust bearing 85, an elastic member 86 and a stop member 87. The second thrust bearing 85, the elastic member 86 and the stop member 87 are all arranged in the installation space 13 and are all sleeved on the drive shaft 40. The stop member 87 is fixedly connected to the drive shaft 40. The second thrust bearing 85 is located between the stop member 87 and the first annular protrusion 16, and the elastic member 86 is located between the stop member 87 and the second thrust bearing 85.

[0081] Among them, the second thrust bearing 85, the elastic member 86, and the stop member 87 are all arranged in the installation space 13, and the second thrust bearing 85, the elastic member 86, and the stop member 87 are all sleeved on the transmission shaft 40. As some embodiments of the present application, the transmission shaft 40 includes a first connection part 41 and a second connection part 42, wherein the first connection part 41 is close to the actuator 20, and the second connection part 42 is away from the actuator 20, the first connection part 41 and the second connection part 42 are connected and arranged, and the second thrust bearing 85, the elastic member 86, and the stop member 87 are all sleeved on the first connection part 41 of the transmission shaft 40.

[0082] The stopper 87 is fixedly connected to the transmission shaft 40. The method of fixed connection between the stopper 87 and the transmission shaft 40 can be, but is not limited to, a clamping connection or welding. In some embodiments of the present application, the stopper 87 is connected to the transmission shaft 40 by a clamping connection. The second thrust bearing 85 is located between the stopper 87 and the first annular protrusion 16, and the elastic member 86 is located between the stopper 87 and the second thrust bearing 85. In other words, the second thrust bearing 85, the elastic member 86, and the stopper 87 are arranged in sequence.

[0083] The stopper 87 may be, but is not limited to, a retaining ring, a retaining spring, or the like. In some embodiments of the present application, the stopper 87 is a retaining ring, and the first connecting portion 41 of the transmission shaft 40 has a snap-fitting groove, with a portion of the structure of the stopper 87 disposed within the snap-fitting groove of the first connecting portion 41. In some embodiments of the present application, the elastic member 86 may be, but is not limited to, an axial spring. In some embodiments of the present application, during the installation of the elastic member 86, by applying a certain preload force to the elastic member 86, the elastic force of the elastic member 86 can be utilized to eliminate the gap between the stopper 87 and the caliper body 10, thereby reducing the impact noise generated by the transmission shaft 40 rotating due to road bumps and special working conditions. By using a second thrust bearing 85, the sliding friction caused by the stopper 87 scraping against the caliper body 10 when rotating with the transmission shaft 40 can be converted into rolling friction, thereby improving transmission efficiency.

[0084] By arranging the second thrust bearing 85 , the elastic member 86 and the stopper 87 in the installation space 13 , the space utilization of the brake assembly 100 can be improved and the axial dimension of the brake assembly 100 can be reduced.

[0085] As some embodiments of the present application, the vehicle brake assembly 100 further includes: a second gasket 88 , which is arranged between the first annular protrusion 16 and the second thrust bearing 85 . This arrangement can reduce wear on the second thrust bearing 85 and the first annular protrusion 16 .

[0086] In some embodiments of the present invention, Figure 6As shown, the caliper body 10 has a first positioning portion 15 , and the actuator 20 has a second positioning portion 23 . The first positioning portion 15 can be positioned and matched with the second positioning portion 23 .

[0087] In some embodiments of the present application, the first positioning portion 15 is configured as a first positioning hole, and the second positioning portion 23 is configured as a first positioning pin, or the first positioning portion 15 is configured as a first positioning pin, and the second positioning portion 23 is configured as a first positioning hole, and the first positioning hole and the first positioning pin are positioned and matched to position and match the caliper body 10 and the actuator 20. In some embodiments of the present application, the first positioning portion 15 and the second positioning portion 23 are clearance-matched.

[0088] As some embodiments of the present application, the second positioning portion 23 is constructed as a first positioning pin, the driving member 21 has an output shaft 22, and the height of the output shaft 22 is greater than the height of the second positioning portion 23, the axis height of the second positioning portion 23 is greater than the height of the plug interface of the force sensor 83, the output shaft 22 is first installed with the transmission shaft 40, and then positioned with the first positioning portion 15 and the second positioning portion 23, such an arrangement can realize the sequential installation of the brake assembly 100.

[0089] By providing the caliper body 10 with a first positioning portion 15 and the actuator 20 with a second positioning portion 23, the docking accuracy of the caliper body 10 and the actuator 20 can be ensured, and the probability of misassembly of the caliper body 10 and the actuator 20 can be effectively reduced. In addition, such a setting enables the plug interface of the force sensor 83 and the actuator 20 to be installed according to the guide, thereby achieving precise docking of the plug interface of the force sensor 83 and the actuator 20, which can reduce the assembly difficulty of the brake assembly 100 and is conducive to improving the assembly efficiency of the brake assembly 100.

[0090] According to the vehicle according to the embodiment of the present invention, including the brake assembly 100 of the vehicle of the above-mentioned embodiment, the drive shaft 40 can be driven to rotate through the driving member 21 to move the connecting member 60 along the extension direction of the drive shaft 40, which can enable the brake assembly 100 to respond quickly. By making the anti-rotation portion 51 of the anti-rotation ring 50 cooperate with the connecting member 60 to prevent rotation, the probability of the connecting member 60 rotating can be reduced, which is beneficial to improving the braking performance of the vehicle and improving the safety of the vehicle.

[0091] 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.

[0092] In the description of the present invention, "first feature" and "second feature" may include one or more such features.

[0093] In the description of the present invention, “plurality” means two or more.

[0094] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact via another feature therebetween.

[0095] In the description of the present invention, a first feature “above”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0096] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0097] 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 assembly (100) for a vehicle, characterized in that: include: A caliper body (10), wherein the caliper body (10) defines a mounting space (13); An actuator (20) and a transmission assembly (30), wherein at least a portion of the transmission assembly (30) is disposed in the installation space (13), the transmission assembly (30) comprising: a transmission shaft (40) and a connecting member (60), wherein the connecting member (60) is sleeved on the transmission shaft (40), and when the transmission shaft (40) rotates, the connecting member (60) can be driven to move along the extension direction of the transmission shaft (40); the actuator (20) comprises a driving member (21), wherein the driving member (21) is in transmission connection with the transmission shaft (40) and can drive the transmission shaft (40) to rotate; An anti-rotation ring (50) is provided in the installation space (13) and sleeved on the outside of the connecting piece (60). The anti-rotation ring (50) is fixedly connected to the inner wall of the installation space (13). The inner side of the anti-rotation ring (50) has an anti-rotation portion (51), and the anti-rotation portion (51) cooperates with the connecting piece (60) to prevent rotation.

2. The vehicle brake assembly (100) according to claim 1, characterized in that: There are multiple anti-rotation parts (51), and the multiple anti-rotation parts (51) are arranged in a surrounding manner; And / or, a first anti-rotation surface (52) is formed on the surface of the anti-rotation portion (51) facing the connecting member (60), a second anti-rotation surface (61) is formed on the outer surface of the connecting member (60), and the first anti-rotation surface (52) cooperates with the second anti-rotation surface (61) to prevent rotation.

3. The vehicle brake assembly (100) according to claim 1, characterized in that: The connecting member (60) has a shaft shoulder (62), and along the extension direction of the transmission shaft (40), the shaft shoulder (62) and the orthographic projection of the anti-rotation portion (51) have an overlapping area.

4. The vehicle brake assembly (100) according to claim 1, characterized in that: Also includes: A bearing seat (70), a first thrust bearing (81) and a force sensor (83); the caliper body (10) includes a caliper body (11) and a first annular protrusion (16); the caliper body (11) defines the installation space (13); the first annular protrusion (16) is arranged in the installation space (13) and connected to the inner wall of the caliper body (11); the bearing seat (70), the first thrust bearing (81) and the force sensor (83) are all arranged in the installation space (13); the bearing seat (70) abuts against the transmission shaft (40); the force sensor (83) abuts against the first annular protrusion (16); the first thrust bearing (81) is sleeved on the bearing seat (70) and is located between the force sensor (83) and the bearing seat (70).

5. The vehicle brake assembly (100) according to claim 4, characterized in that: The transmission shaft (40) has a first matching arc surface (43) facing the bearing seat (70), and the bearing seat (70) has a second matching arc surface (73), and the first matching arc surface (43) matches the second matching arc surface (73); And / or, the bearing seat (70) has a mounting through hole (71), the transmission shaft (40) is passed through the mounting through hole (71), the inner wall of the mounting through hole (71) has a plurality of matching grooves (72), the plurality of matching grooves (72) are arranged around, and the transmission shaft (40) has a plurality of matching protrusions (44), and the plurality of matching protrusions (44) correspond one-to-one to the plurality of matching grooves (72).

6. The vehicle brake assembly (100) according to claim 4, characterized in that: The caliper body (10) further comprises: a second annular protrusion (17), the second annular protrusion (17) being connected to the first annular protrusion (16) and extending toward the connecting member (60), and at least a portion of the force sensor (83) being located between the second annular protrusion (17) and the inner wall of the caliper body (11).

7. The vehicle brake assembly (100) according to claim 6, characterized in that: Also includes: A joint bearing (84) is sleeved on the transmission shaft (40) and located inside the second annular protrusion (17).

8. The vehicle brake assembly (100) according to claim 4, characterized in that: Also includes: A second thrust bearing (85), an elastic member (86) and a stop member (87); the second thrust bearing (85), the elastic member (86) and the stop member (87) are all arranged in the installation space (13) and are all sleeved on the transmission shaft (40); the stop member (87) is fixedly connected to the transmission shaft (40); the second thrust bearing (85) is located between the stop member (87) and the first annular protrusion (16); and the elastic member (86) is located between the stop member (87) and the second thrust bearing (85).

9. The vehicle brake assembly (100) according to any one of claims 1 to 8, characterized in that: The caliper body (10) has a first positioning portion (15), and the actuator (20) has a second positioning portion (23). The first positioning portion (15) can be positioned and matched with the second positioning portion (23).

10. A vehicle, characterized in that: A brake assembly (100) for a vehicle comprising the brake assembly according to any one of claims 1-9.

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