Brake, brake system, and vehicle

Abstract

The application discloses a brake, a brake system and a vehicle, wherein the brake comprises an executing mechanism and a force amplification lever, the executing mechanism comprises a power assembly and a transmission assembly, the power assembly and the transmission assembly are in transmission connection, the force amplification lever is connected between the transmission assembly and a brake pad, and the force amplification lever is in transmission connection with the transmission assembly, so that the force amplification lever can drive the brake pad to move. The brake of the embodiment of the application can output larger braking force while simplifying the structure of the brake itself by arranging the force amplification lever and driving the brake pad to move by the force amplification lever, and the working performance of the brake is ensured to a certain extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a brake, a brake system and a vehicle. BACKGROUND

[0002] The brake is a device for reducing speed, stopping or keeping the moving part in a stopped state, also known as a brake.

[0003] In the prior art, in order to ensure that the brake can output a larger braking force, a planetary reduction mechanism is usually provided, which is used to realize the speed reduction and torque increase of the motor, and then the rotational motion of the motor is converted into straight pushing motion through the ball screw mechanism to achieve the purpose of braking.

[0004] However, the cooperation of the planetary reduction mechanism and the ball screw mechanism will cause the structure of the brake to be complex, and the axial size of the brake to be stretched and lengthened, which will greatly occupy the wheel edge space and is not conducive to the arrangement of the brake and other environmental components. SUMMARY

[0005] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the first object of the present application is to provide a brake which can simplify its structure while achieving a larger braking force output, thereby reducing the axial size of the brake and solving the technical problems of complex structure and large space occupation of the brake in the prior art.

[0006] The second object of the present application is to provide a brake system having the above-mentioned brake.

[0007] The third object of the present application is to provide a vehicle having the above-mentioned brake system.

[0008] According to the brake of the embodiment of the present application, the brake comprises an actuator, a power assembly and a transmission assembly, the power assembly and the transmission assembly being in transmission connection; a force amplification lever connected between the transmission assembly and the brake pad, the force amplification lever being in transmission connection with the transmission assembly so that the force amplification lever can drive the brake pad to move.

[0009] According to the brake of the embodiment of the present application, the force amplification lever is provided and connected between the transmission assembly and the brake pad, and the force amplification lever is in transmission connection with the transmission assembly, so as to amplify the pushing force of the transmission assembly by the force amplification lever, thereby enabling the brake to output a larger braking force at a relatively low cost requirement and simplifying the structure of the brake to match the demand for large braking force of commercial vehicles. That is, the brake of the present application not only has a simple structure, but also can output a larger braking force.

[0010] In some embodiments, the force amplification lever comprises a first connecting portion and a second connecting portion connected to each other, one end of the first connecting portion away from the second connecting portion is connected to the transmission assembly, and one end of the second connecting portion away from the first connecting portion is in transmission connection with the brake pad.

[0011] In some embodiments, the first connecting portion is movably connected to the transmission assembly.

[0012] In some embodiments, one of the transmission assembly and the first connecting portion is provided with a rotating connecting head, and the other is provided with a rotating connecting port, and the rotating connecting head is rotatably connected in the rotating connecting port.

[0013] In some embodiments, one end of the second connecting portion away from the first connecting portion is a circular arc surface, the circular arc surface is convex towards the brake pad, and the circular arc surface is movably matched with the brake pad.

[0014] In some embodiments, the center of the circular arc surface is spaced apart from the rotation center of the force amplification lever.

[0015] In some embodiments, the second connecting portion extends along the length direction of the brake pad.

[0016] In some embodiments, the radial dimension of at least part of the first connecting portion gradually increases in the direction towards the second connecting portion.

[0017] In some embodiments, the first connecting portion comprises a first part and a second part, the second part is connected between the first part and the second connecting portion, and the radial dimension of the second part gradually increases in the direction towards the second connecting portion.

[0018] In some embodiments, the first connecting portion and the second connecting portion are connected by a circular arc segment.

[0019] In some embodiments, the power assembly comprises a motor, the transmission assembly comprises a rotating member and a moving member connected to the rotating member, the motor is used to drive the rotating member to rotate to control the moving member to reciprocate, and the moving member is connected to the force amplification lever.

[0020] In some embodiments, the brake further comprises a locking assembly, the locking assembly is used to lock the transmission assembly to limit at least part of the action of the transmission assembly.

[0021] In some embodiments, the locking assembly is arranged at one axial end of the rotating member, and the locking assembly is used to lock the rotating member to limit the rotation of the rotating member.

[0022] In some embodiments, the locking assembly comprises a driving member and an executing member, the driving member is configured to drive the executing member to reciprocate, so that the executing member has a first position to restrict the rotation of the rotating member and a second position to unlock the rotating member.

[0023] In some embodiments, the executing member comprises a push rod and a first locking member, the push rod is connected to the driving member, the rotating member is provided with a first locking matching member, the driving member is configured to drive the push rod to move to push the first locking member to move towards the first locking matching member, the first locking member is limitedly matched with the first locking matching member, and the executing member is switched to the first position.

[0024] In some embodiments, the rotating member is hollow inside, at least part of the push rod is arranged in the rotating member, and the first locking member is arranged between the push rod and the rotating member; the push rod extends along the axial direction of the rotating member, so that at least part of the push rod is located between the driving member and the first locking member, and in the direction from the driving member to the first locking member, the outer peripheral wall of at least part of the push rod extends in a direction away from the rotating member.

[0025] In some embodiments, the push rod comprises a pushing section, the pushing section is configured to push the first locking member to move towards the first locking matching member; the pushing section is formed in a conical shape, and in the direction from the driving member to the first locking member, the radial dimension of the pushing section gradually decreases.

[0026] In some embodiments, the push rod comprises a connecting section, the connecting section is connected to the driving member, and the pushing section is connected to one end of the connecting section away from the driving member.

[0027] In some embodiments, the executing member further comprises a reset member, the reset member is configured to push the first locking member to move in a direction away from the first locking matching member, so that the executing member is switched to the second position.

[0028] In some embodiments, the first locking member is a pawl, the first locking matching member is a ratchet wheel, and in the first position, the pawl is in abutting cooperation with the ratchet wheel.

[0029] In some embodiments, the first locking member comprises a plurality of first locking members, and the plurality of first locking members are arranged in a ring shape around the outer periphery of the push rod.

[0030] In some embodiments, the locking assembly further comprises a guide member, at least part of the guide member is arranged between the rotating member and the push rod, the first locking member is arranged in the guide member, and the guide member is configured to limit the moving direction of the first locking member.

[0031] In some embodiments, the driving member comprises an electromagnetic module which is magnetically attracted to the push rod; the driving member is configured to control the current direction of the electromagnetic module to push the push rod to reciprocate.

[0032] In some embodiments, a permanent magnet is arranged on the electromagnetic module, which is used to control the electromagnetic module to keep magnetically attracted to the push rod after the electromagnetic module is powered off.

[0033] In some embodiments, the driving member comprises a coil which is powered, the executing member comprises a second locking member and a second locking counterpart, the second locking counterpart is connected to the rotating member, the coil is magnetically attracted to the second locking member to control the second locking member to lock or release the second locking counterpart.

[0034] In some embodiments, the second locking member comprises a first counterpart and a second counterpart, at least part of the second locking counterpart is arranged between the first counterpart and the second counterpart, the coil is magnetically attracted to the first counterpart and / or the second counterpart to control the first counterpart and / or the second counterpart to move relative to the second locking counterpart.

[0035] In some embodiments, the first counterpart and the second counterpart are both formed as locking plates, the second locking counterpart is formed as a locking counterpart plate, the locking counterpart plate is connected to the outer peripheral wall of the rotating member, and the two locking plates are arranged on opposite sides of the locking counterpart plate.

[0036] In some embodiments, the locking assembly is arranged on the outer periphery of the rotating member.

[0037] In some embodiments, the motor comprises a stator and a rotor, the stator is arranged on the outer periphery of the rotor, and the rotor is arranged on the outer periphery of the transmission assembly; the executing mechanism further comprises a detection assembly for detecting the position of the rotor.

[0038] In some embodiments, the detection assembly comprises a sensor and a magnetic ring arranged on the rotating member, the sensor is used to detect the rotation angle of the magnetic ring.

[0039] In some embodiments, the moving member is rotatably connected to the rotating member.

[0040] In some embodiments, the executing mechanism further comprises a rotation limiting member which is connected to the moving member, and is used to limit the rotation of the moving member along the circumferential direction.

[0041] The brake system according to the embodiments of the present application comprises the brake described above.

[0042] According to the brake system of the embodiment of the present application, by using the aforementioned brake, the brake system not only has simple structure, but also can output larger braking force, so as to optimize the working performance of the brake system.

[0043] According to the vehicle of the embodiment of the present application, the aforementioned brake system is used, so as to use the aforementioned brake, which is beneficial to improving the performance of the vehicle.

[0044] According to the vehicle of the embodiment of the present application, the aforementioned brake system is used, so as to use the aforementioned brake, which is beneficial to improving the performance of the vehicle.

[0045] Additional aspects and advantages of the present application will become apparent from the following description, which is by way of illustration. BRIEF DESCRIPTION OF DRAWINGS

[0046] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood by considering the following detailed description, including the accompanying drawings, in which:

[0047] Figure 1 A sectional view of the brake of some embodiments of the first aspect of the present application.

[0048] Figure 2 A sectional view of the actuator of some embodiments of the first aspect of the present application.

[0049] Figure 3 A schematic view between the locking assembly and the housing of some embodiments of the first aspect of the present application.

[0050] Figure 4 A schematic view between the locking assembly and the rotating member of some embodiments of the first aspect of the present application.

[0051] Figure 5 Another angle schematic view between the locking assembly and the housing of some embodiments of the first aspect of the present application.

[0052] Figure 6 A sectional view of the brake of some embodiments of the second aspect of the present application.

[0053] Figure 7 A sectional view of the actuator of some embodiments of the second aspect of the present application.

[0054] Figure 8 A schematic view between the locking assembly and the rotating member of some embodiments of the second aspect of the present application.

[0055] Figure 9 A schematic view of the force amplification lever of some embodiments of the present application.

[0056] Figure 10 A top view of the force amplification lever of some embodiments of the present application.

[0057] Figure 11 Figure 6 is a bottom view of the force amplification lever according to some embodiments of the present application.

[0058] Figure 12 Figure 7 is a cross-sectional view of the force amplification lever according to some embodiments of the present application.

[0059] Reference Signs:

[0060] 1000, brake; 100, actuator; 110, power assembly; 111, motor; 1111, stator; 1112, rotor; 120, transmission assembly; 121, rotating member; 1211, first locking member; 122, moving member; 1221, rotating joint; 1222, first moving member; 1223, second moving member; 1224, adapter; 1225, rotating cavity; 1226, elastic member; 130, locking assembly; 131, driving member; 1311, electromagnetic module; 1312, coil; 132, executing member; 1321, push rod; 13211, connecting section; 13212, pushing section; 1322, first locking member; 1323, resetting member; 1324, first cooperating member; 1325, second locking member; 1326, second cooperating member; 133, guide member; 140, detection assembly; 141, magnetic ring sleeve; 142, magnetic ring; 150, rotation-stopping member; 160, housing; 161, first housing; 1611, wire outlet hole; 162, second housing; 163, sealing ring; 180, PCB; 200, force amplification lever; 220, first connecting portion; 221, rotating joint; 222, first portion; 223, second portion; 230, second connecting portion; 231, circular arc surface; 240, circular arc section; 300, brake pad; 400, push disc; A, contact point of the first connecting portion and the transmission assembly; B, center of the circular arc surface; C, rotating center of the force amplification lever; D, contact point of the circular arc surface and the push disc. DETAILED DESCRIPTION

[0061] Embodiments of the present application are described in detail below with reference to several drawings. The embodiments described below are illustrative only, and are not intended to be limiting on the present application. Other embodiments of the present application can be apparent to those of ordinary skill in the art from the description below with reference to the drawings.

[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0063] The brake 1000 of the embodiment of the present application is described below with reference to the accompanying drawings.

[0064] As shown in Figure 1 and Figure 6 , the brake 1000 according to the embodiment of the present application comprises an actuator 100 and a force amplification lever 200.

[0065] As shown in Figure 1 and Figure 6 , the actuator 100 comprises a power assembly 110 and a transmission assembly 120, and the power assembly 110 and the transmission assembly 120 are drivingly connected, so that the transmission assembly 120 can move under the drive of the power assembly 110, to ensure the working performance of the transmission assembly 120 to a certain extent.

[0066] It should be noted that by arranging the power assembly 110 to drive the transmission assembly 120 to move, the transmission assembly 120 can output braking force, so as to achieve the purpose of service brake.

[0067] In some embodiments, the power assembly 110 is configured to drive the transmission assembly 120 to reciprocate, so as to achieve the purpose of realizing service brake by the actuator 100.

[0068] As shown in Figure 1 and Figure 6As shown, the force amplification lever 200 is connected between the transmission assembly 120 and the brake pad 300, and the force amplification lever 200 is in transmission connection with the transmission assembly 120, so that the force amplification lever 200 can drive the brake pad 300 to move. Here, connecting the force amplification lever 200 between the transmission assembly 120 and the brake pad 300 can realize the transmission connection between the force amplification lever 200 and the transmission assembly 120, so that the force amplification lever 200 can drive the brake pad 300 to move. In this way, while realizing the movement of the brake pad 300 driven by the transmission assembly 120, the force amplification lever 200 can also amplify the pushing force of the transmission assembly 120, so that the brake 1000 can output larger braking force at relatively low cost requirement, to match the large braking force requirement of commercial vehicles, and to ensure the working performance of the brake 1000 to a certain extent.

[0069] Meanwhile, by arranging the force amplification lever 200, the setting of the speed reduction mechanism can be omitted, the structure of the brake 1000 is simplified, the manufacturing difficulty and cost of the brake 1000 are reduced, and the occupied space of the brake 1000 is also reduced, especially the axial space of the brake 1000 is reduced, which to a certain extent avoids the excessive occupation of the wheel edge space by the brake 1000, and is conducive to the arrangement of the brake 1000 and other environmental components, and reduces the arrangement difficulty of the brake 1000.

[0070] That is to say, the brake 1000 of the present application not only can output larger braking force, but also has simple structure and small axial size.

[0071] As can be seen from the above structure, the brake 1000 of the embodiment of the present application can increase the braking force of the brake 1000 by arranging the force amplification lever 200, the setting of the speed reduction mechanism can be omitted, the structure of the brake 1000 is simplified, the manufacturing cost of the brake 1000 is reduced, and the occupied space of the brake 1000 is also reduced, so that the brake 1000 not only can output larger braking force, but also has simple structure and small axial size, and the arrangement of the brake 1000 and other environmental components is reduced.

[0072] It can be understood that, compared with the prior art, the brake 1000 of the present application can output larger braking force while simplifying the structure of the brake 1000 itself, which to a certain extent ensures the working performance of the brake 1000.

[0073] In some embodiments, as shown in Figure 1 and Figure 6 As shown, the brake 1000 further comprises a push disc 400, during the braking process of the brake 1000, the transmission assembly 120 outputs a pushing force, the pushing force is amplified by the force amplification lever 200 and reaches the push disc 400, and the push disc 400 further pushes the brake pad 300 to complete the braking action.

[0074] In some embodiments, as shown in Figure 9 , Figure 10 , Figure 11 and Figure 12 , the force amplification lever 200 comprises a first connecting portion 220 and a second connecting portion 230 connected to each other, the first connecting portion 220 is connected to the transmission assembly 120 at one end away from the second connecting portion 230, and the second connecting portion 230 is in transmission connection with the brake pad 300 at one end away from the first connecting portion 220. That is, the first connecting portion 220 is connected to the transmission assembly 120, and the second connecting portion 230 is in transmission connection with the brake pad 300, so as to realize the connection of the force amplification lever 200 between the transmission assembly 120 and the brake pad 300, reduce the difficulty of the force amplification lever 200 in cooperation with the transmission assembly 120 and the brake pad 300, and facilitate the use of the force amplification lever 200 to amplify the pushing force of the transmission assembly 120, so that the brake 1000 can output greater braking force at relatively low cost.

[0075] In a specific example, the second connecting portion 230 is in transmission connection with the push disc 400 at one end away from the first connecting portion 220, so that when the transmission assembly 120 outputs the pushing force, the pushing force can be amplified by the force amplification lever 200 and then reach the push disc 400, and then the push disc 400 pushes the brake pad 300 to move to complete the braking action.

[0076] In some embodiments, the first connecting portion 220 is movably connected to the transmission assembly 120. Thus, the force amplification lever 200 is movably connected to the transmission assembly 120, so that when the transmission assembly 120 drives the force amplification lever 200 to move, the force amplification lever 200 can move relative to the transmission assembly 120, so as to facilitate the use of the force amplification lever 200 to push the brake pad 300 to move, and achieve the purpose of increasing the pushing force of the transmission assembly 120 by the force amplification lever 200.

[0077] In some embodiments, the first connecting portion 220 is rotatably connected to the transmission assembly 120 at one end away from the second connecting portion 230, so as to realize the movable connection of the first connecting portion 220 and the transmission assembly 120.

[0078] In some embodiments, as shown in Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, one of the transmission assembly 120 and the first connecting part 220 is provided with a rotating connector 1221, and the other is provided with a rotating connection port 221. The rotating connector 1221 is rotatably connected to the rotating connection port 221. This refers to the following: when the transmission assembly 120 is provided with a rotating connector 1221, the first connecting part 220 is provided with a rotating connection port 221; when the first connecting part 220 is provided with a rotating connector 1221, the transmission assembly 120 is provided with a rotating connection port 221, and the rotating connector 1221 is rotatably connected within the rotating connection port 221, so as to realize the rotatable connection between the transmission assembly 120 and the first connecting part 220, thereby realizing the movable connection between the first connecting part 220 and the transmission assembly 120, and reducing the difficulty of the rotatable connection between the first connecting part 220 and the transmission assembly 120. As a result, when the transmission assembly 120 drives the force-increasing lever 200 to move, the force-increasing lever 200 can rotate relative to the transmission assembly 120, so as to achieve the purpose of increasing the driving force of the transmission assembly 120 by using the force-increasing lever 200.

[0079] In specific examples, combined Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the transmission assembly 120 is provided with a rotating connector 1221, and the first connecting part 220 is provided with a rotating connection port 221 (the specific structure of the rotating connection port 221 can be found in [reference]). Figure 10 and Figure 12 The rotating connector 1221 is rotatably connected to the rotating connector port 221 to achieve a movable connection between the first connecting part 220 and the transmission assembly 120.

[0080] Of course, in some other embodiments, the first connecting part 220 is provided with a rotating connector 1221 and the transmission component 120 is provided with a rotating connection port 221 (not shown in this example figure). In this way, the rotating connector 1221 is rotatably connected in the rotating connection port 221, and the first connecting part 220 and the transmission component 120 can also be movably connected.

[0081] In some embodiments, such as Figure 1 , Figure 6 , Figure 9 and Figure 12As shown, the end side of the second connecting portion 230 away from the first connecting portion 220 is a circular arc surface 231, the circular arc surface 231 protrudes towards the brake piece 300, and the circular arc surface 231 is movable matched with the brake piece 300. That is, the side of the second connecting portion 230 towards the brake piece 300 is the circular arc surface 231, and the circular arc surface 231 protrudes towards the brake piece 300, so that the second connecting portion 230 is formed as a cam structure, so that when the transmission assembly 120 drives the force amplification lever 200 to move, the force amplification lever 200 can effectively drive the brake piece 300 to move, so as to achieve the purpose of driving the brake piece 300 to move by the transmission assembly 120, facilitate the braking action, and also achieve the purpose of amplifying the pushing force of the transmission assembly 120 by the force amplification lever 200.

[0082] It should be noted that when the brake 1000 includes the push disc 400, the end side of the second connecting portion 230 away from the push disc 400 is a circular arc surface 231, the circular arc surface 231 protrudes towards the push disc 400, and the circular arc surface 231 is movable matched with the push disc 400, so as to facilitate the push disc 400 to move by the force amplification lever 200, and then the push disc 400 pushes the brake piece 300 to complete the braking action.

[0083] In some embodiments, the center of the circular arc surface 231 is spaced apart from the rotation center of the force amplification lever 200. Wherein, the center of the circular arc surface 231 can be understood as B shown in Figure 9 , and the rotation center of the force amplification lever 200 can be understood as C shown in Figure 9 , so that when the force amplification lever 200 rotates and synchronously rotates the second connecting portion 230, the circular arc surface 231 can generate different contact points (the contact point of the circular arc surface 231 and the push disc 400 can be understood as D shown in Figure 9 ) and contact trajectories with the push disc 400 during rotation, thereby achieving the movement of the push disc 400, so as to achieve the movement of the brake piece 300.

[0084] In some embodiments, in combination with Figure 1 , Figure 6 , Figure 10 and Figure 11 , the second connecting portion 230 extends along the length direction of the brake piece 300. This is advantageous for increasing the area of the second connecting portion 230, thereby ensuring that the force receiving surface of the push disc 400 is larger to some extent, ensuring that the force amplification lever 200 can effectively push the push disc 400 to move during rotation, and also making the wear more uniform, prolonging the service life of the force amplification lever 200 and the push disc 400, and reducing the use cost.

[0085] In some embodiments, in combination with Figure 1 , Figure 6 , Figure 9 andFigure 12 As shown, the radial dimension of at least part of the first connecting portion 220 gradually increases in the direction towards the second connecting portion 230. So that the radial dimension of the first connecting portion 220 close to the second connecting portion 230 is greater than the radial dimension of the first connecting portion 220 away from the second connecting portion 230, which is beneficial to increase the contact area between the first connecting portion 220 and the second connecting portion 230, improve the connecting strength between the first connecting portion 220 and the second connecting portion 230, and further improve the structural strength of the force amplification lever 200, thereby prolonging the service life of the force amplification lever 200 and reducing the use cost of the force amplification lever 200 while ensuring the working performance of the force amplification lever 200.

[0086] In some embodiments, in combination with Figure 9 and Figure 12 As shown, the first connecting portion 220 includes a first part 222 and a second part 223, the second part 223 is connected between the first part 222 and the second connecting portion 230, and the radial dimension of the second part 223 gradually increases in the direction towards the second connecting portion 230. So that the radial dimension of at least part of the first connecting portion 220 is set to gradually increase in the direction towards the second connecting portion 230, which reduces the forming difficulty of the first connecting portion 220, and the second part 223 is connected to the second connecting portion 230, so as to increase the contact area between the second part 223 and the second connecting portion 230, and further increase the connecting strength between the first connecting portion 220 and the second connecting portion 230, and improve the structural strength of the force amplification lever 200.

[0087] In some embodiments, in combination with Figure 9 and Figure 12 As shown, the side of the first part 222 away from the second part 223 is provided with a rotating connecting port 221, and the rotating connecting port 221 is connected with the rotating connecting head 1221 in a matched manner, so as to realize the movable connection between the first connecting portion 220 and the transmission assembly 120.

[0088] In summary, the first connecting portion 220 includes the first part 222 and the second part 223 connected with each other, the end of the first part 222 away from the second part 223 is connected with the transmission assembly 120, and the end of the second part 223 away from the first part 222 is connected with the second connecting portion 230, so as to realize the matched connection between the first connecting portion 220 and the transmission assembly 120.

[0089] In some embodiments, the force-amplifying lever 200 is manufactured using a one-piece molding process. That is, the first connecting portion 220 and the second connecting portion 230 are formed as a single piece. This increases the connection strength between the first connecting portion 220 and the second connecting portion 230, thereby improving the structural strength of the force-amplifying lever 200 and ensuring its working performance to a certain extent. On the other hand, it eliminates the need for a connection between the first connecting portion 220 and the second connecting portion 230, reducing the manufacturing difficulty of the force-amplifying lever 200 and improving manufacturing efficiency.

[0090] Of course, in some other embodiments, the first connecting part 220 and the second connecting part 230 can also be formed as separate parts. After the first connecting part 220 and the second connecting part 230 are processed and formed separately, they can be connected by welding, bonding or other methods to form the force-increasing lever 200.

[0091] In some embodiments, such as Figure 11 As shown, the first connecting part 220 and the second connecting part 230 are connected by an arc segment 240. This can also be understood as the arc segment 240 connecting the first connecting part 220 and the second connecting part 230, which can, to a certain extent, avoid stress concentration between the first connecting part 220 and the second connecting part 230, thereby preventing the force-enhancing lever 200 from breaking at the connection between the first connecting part 220 and the second connecting part 230 and extending the service life of the force-enhancing lever 200.

[0092] Meanwhile, when the lever 200 is made using a one-piece molding process, the arc segment 240 can also reduce the molding difficulty of the lever 200.

[0093] The working principle of the force-increasing lever 200 of this application will be explained in detail below with reference to the accompanying drawings.

[0094] in, Figure 9 Point A shown is the contact point between the lever 200 and the transmission assembly 120. Point B is the center of the arc surface 231 of the lever 200. Point C is the rotation center of the lever 200. Point D is the contact point between the arc surface 231 of the lever 200 and the push plate 400. AB is the input lever arm, and CD is the output lever arm. When the lever 200 is working, it rotates around point C. The length of the lever arm AB does not change during the movement. However, since the center point B of the arc surface 231 is spaced apart from the rotation center point C of the lever 200, the length of the lever arm CD changes during the movement, so as to use the lever 200 to push the push plate 400 to move.

[0095] It should be noted that after the lever 200 is designed, AB, BD, and CB are fixed values. According to the law of cosines, CD can be obtained as follows:2 = CB 2 + BD 2 - 2*CB*BD*cos ∠CBD, wherein, when ∠CBD = 90°, the output force arm CD is maximum, according to the principle of lever, the amplification ratio of the lever is minimum at this time, therefore, when ∠CBD = 90°, if the minimum amplification ratio of the force amplification lever 200 can meet the amplification requirement, it is indicated that the force amplification lever 200 meets the amplification requirement, that is, the force amplification lever 200 can realize the requirement of amplifying the braking force.

[0096] In some embodiments, the force amplification lever 200 is matched with a gap compensation mechanism and a return mechanism (not shown in the figure), the gap compensation mechanism can compensate the brake, and the return mechanism can ensure that the force amplification lever 200 can return to the original position after each time of pushing out, so as to ensure the working performance of the force amplification lever 200 to a certain extent.

[0097] In some embodiments, as shown in Figure 2 and Figure 7 , the power assembly 110 includes a motor 111, the transmission assembly 120 includes a rotating piece 121 and a moving piece 122 connected to the rotating piece 121, the motor 111 is used to drive the rotating piece 121 to rotate to control the reciprocating movement of the moving piece 122, and the moving piece 122 is connected to the force amplification lever 200. Here, it is referred to that by connecting the moving piece 122 to the rotating piece 121, when the motor 111 drives the rotating piece 121 to rotate, the reciprocating movement of the moving piece 122 can be controlled, so that the transmission assembly 120 can output the pushing force.

[0098] At the same time, by connecting the moving piece 122 to the force amplification lever 200, one end of the force amplification lever 200 is connected to the transmission assembly 120, which can not only reduce the connection difficulty of the force amplification lever 200 and the transmission assembly 120, but also ensure that the transmission assembly 120 can drive the force amplification lever 200 to move when the transmission assembly 120 outputs the pushing force, so as to amplify the pushing force of the transmission assembly 120 by using the force amplification lever 200, thereby enabling the brake 1000 to output greater braking force, and ensuring the working performance of the brake 1000 to a certain extent.

[0099] In a specific example, when the motor 111 drives the rotating piece 121 to rotate in the forward direction, the rotating piece 121 drives the moving piece 122 to move, at this time, the moving piece 122 can be pushed out axially, and the moving piece 122 drives the force amplification lever 200 to rotate when the moving piece 122 is pushed out axially, so as to amplify the pushing force by using the force amplification lever 200, and complete the braking action; and the motor 111 is reversed to control the moving piece 122 to reset.

[0100] It should be noted that when the transmission assembly 120 comprises the moving piece 122, the rotating connecting head 1221 is arranged on the moving piece 122, and the first connecting part 220 is rotationally connected with the moving piece 122 through the rotating connecting head 1221, so as to realize the rotational connection between the force amplification lever 200 and the transmission assembly 120, thereby ensuring that the transmission assembly 120 can drive the force amplification lever 200 to move when the transmission assembly 120 outputs the pushing force, so as to realize the amplification of the pushing force of the transmission assembly 120 by the force amplification lever 200.

[0101] In some embodiments, the rotating piece 121 is a screw sleeve, and the moving piece 122 is a lead screw. The screw sleeve is sleeved on the lead screw, so that the transmission assembly 120 is formed into a ball screw mechanism, thereby effectively controlling the reciprocating movement of the moving piece 122 when the motor 111 drives the rotating piece 121 to rotate, so as to output the pushing force by the transmission assembly 120.

[0102] Of course, in other embodiments, the transmission assembly 120 can also be formed into a gear and rack mechanism.

[0103] In some embodiments, as shown in Figure 2 and Figure 7 , the motor 111 comprises a stator 1111 and a rotor 1112. The stator 1111 is sleeved on the outer periphery of the rotor 1112, and the rotor 1112 is arranged on the outer periphery of the transmission assembly 120. The motor 111 is arranged to comprise the stator 1111 and the rotor 1112, and the stator 1111 is sleeved on the outer periphery of the rotor 1112, so as to realize the coupling of the stator 1111 and the rotor 1112, thereby facilitating the rotation of the rotating piece 121 by the motor 111 to control the reciprocating movement of the moving piece 122, and reducing the control difficulty of the moving piece 122.

[0104] At the same time, by arranging the rotor 1112 on the outer periphery of the transmission assembly 120, on the one hand, the rotor 1112 is arranged close to the transmission assembly 120, which facilitates the rotation of the rotating piece 121 by the rotor 1112, and on the other hand, the space inside the rotor 1112 in the radial direction can be fully utilized, which is beneficial to reducing the axial size of the brake 1000 and reducing the arrangement difficulty of the brake 1000.

[0105] In a specific example, the rotor 1112 is arranged on the outer periphery of the transmission assembly 120 and is fixedly connected with the rotating piece 121 of the transmission assembly 120. During the coupling of the stator 1111 and the rotor 1112, the rotor 1112 rotates relative to the stator 1111. The rotor 1112 rotates and drives the rotating piece 121 to rotate, thereby achieving the purpose of rotating the rotating piece 121 by the motor 111 to control the reciprocating movement of the moving piece 122.

[0106] In some embodiments, as shown in Figure 2 and Figure 7As shown, the stator 1111 is fixed on the second housing 162 by interference press-fitting, so as to support the stator 1111 by the second housing 162, improve the position stability of the stator 1111, and ensure the working performance of the motor 111 to a certain extent.

[0107] In some embodiments, as shown in Figure 1 and Figure 6 The actuating mechanism 100 further comprises a locking assembly 130, which is configured to lock the transmission assembly 120 to limit the action of at least part of the transmission assembly 120. Here, when the locking assembly 130 locks the transmission assembly 120, the locking assembly 130 can be used to limit the action of at least part of the transmission assembly 120, so that at least part of the transmission assembly 120 can be locked during braking, thereby achieving parking brake.

[0108] In some embodiments, the locking assembly 130 is further configured to unlock at least part of the transmission assembly 120. That is, the locking assembly 130 can lock at least part of the transmission assembly 120, and can also unlock at least part of the transmission assembly 120. When the locking assembly 130 locks at least part of the transmission assembly 120, the locking assembly 130 is configured to limit the action of at least part of the transmission assembly 120; when the locking assembly 130 unlocks at least part of the transmission assembly 120, at least part of the transmission assembly 120 can reciprocate under the drive of the power assembly 110, so as to ensure the working performance of the transmission assembly 120 to a certain extent.

[0109] Through the above arrangement, the brake 1000 of the present application can simultaneously satisfy the service brake and the parking brake, that is, the brake 1000 is formed as an integrated mechanism of the service brake and the parking brake.

[0110] In some embodiments, as shown in Figure 2 and Figure 7 The actuating mechanism 100 comprises a housing 160, and at least part of the power assembly 110, the transmission assembly 120 and the locking assembly 130 are arranged in the housing 160. The housing 160 can be used to support and ensure the power assembly 110, the transmission assembly 120 and the locking assembly 130, thereby improving the position stability of the power assembly 110, the transmission assembly 120 and the locking assembly 130, and prolonging the service life of the power assembly 110, the transmission assembly 120 and the locking assembly 130.

[0111] In some embodiments, as shown in Figure 2 and Figure 7As shown, the housing 160 comprises a first shell 161 and a second shell 162, which are connected to form the housing 160, so as to reduce the assembly difficulty of the housing 160 and facilitate the arrangement of the power assembly 110, at least part of the transmission assembly 120 and the locking assembly 130 in the housing 160.

[0112] In some embodiments, as shown in Figure 7 As shown, the connection between the first shell 161 and the second shell 162 is provided with a sealing ring 163, which is used to realize the sealing connection of the first shell 161 and the second shell 162, so as to play a sealing and waterproof role, thereby avoiding water entering the housing 160, ensuring the use safety of the power assembly 110, the transmission assembly 120 and the locking assembly 130, and prolonging the service life.

[0113] Here, the sealing ring 163 can be understood as an O-ring.

[0114] In the description of the present application, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features, which are used to distinguish the described features and have no order or importance.

[0115] In some embodiments, as shown in Figure 2 and Figure 7 As shown, the locking assembly 130 is arranged at one axial end of the rotating member 121, and is used to lock the rotating member 121 to limit the rotation of the rotating member 121. That is, the locking assembly 130 is used to lock the transmission assembly 120 to limit the action of the rotating member 121 of the transmission assembly 120. When the rotating member 121 rotates, it can drive the moving member 122 to reciprocate. By limiting the rotation of the rotating member 121, the movement of the moving member 122 can be limited, so as to achieve the purpose of locking the transmission assembly 120, to limit the movement of the transmission assembly 120, so that the transmission assembly 120 can be locked during braking, thereby realizing the parking brake.

[0116] At the same time, by limiting the rotation of the rotating member 121 to lock the transmission assembly 120, the locking difficulty of the transmission assembly 120 can be reduced.

[0117] In summary, the brake 1000 of the present application is a large thrust brake mechanism based on the combination of the transmission assembly 120 and the force lever 200, and cooperates with the locking assembly 130, so that the brake 1000 becomes a driving and parking brake integrated mechanism.

[0118] Specifically, the brake 1000 comprises an actuator 100, a force amplification lever 200, a push disc 400 and a brake pad 300. The actuator 100 mainly comprises a power assembly 110, a transmission assembly 120 and a locking assembly 130. The motor 111 of the power assembly 110 converts the rotary motion into horizontal motion through the transmission assembly 120, and then proportionally amplifies the pushing force of the transmission assembly 120 through the force amplification lever 200, so as to achieve the effect of large pushing force service brake, thereby meeting the requirement of large pushing force brake of commercial vehicles.

[0119] Meanwhile, the locking assembly 130 can lock the rotating part 121 of the transmission assembly 120 when working, so as to make the brake 1000 achieve the effect of parking brake, thereby forming the brake 1000 of the application into an integrated mechanism of service brake and parking brake.

[0120] In some embodiments, as shown in Figure 2 The locking assembly 130 comprises a driving part 131 and an executing part 132. The driving part 131 is used to drive the executing part 132 to move reciprocally, so as to make the executing part 132 have a first position for limiting the rotation of the rotating part 121 and a second position for unlocking the rotating part 121. When the executing part 132 limits the rotation of the rotating part 121, the purpose of locking the transmission assembly 120 can be achieved, so as to make the transmission assembly 120 be locked during the braking process, thereby realizing the parking brake. When the executing part 132 unlocks the rotating part 121, the rotating part 121 can be effectively rotated under the driving of the motor 111, so as to make the transmission assembly 120 be able to output the pushing force, thereby ensuring the working performance of the brake 1000, and making the brake 1000 start to perform the service brake.

[0121] In some embodiments, as shown in Figure 2 The executing part 132 comprises a push rod 1321 and a first locking part 1322. The push rod 1321 is connected with the driving part 131, and the rotating part 121 is provided with a first locking matching part 1211 (the specific structure of the first locking matching part 1211 can be referred to Figure 4 The driving part 131 is used to drive the push rod 1321 to move, so as to push the first locking part 1322 to move towards the first locking matching part 1211. The first locking part 1322 is limitingly matched with the first locking matching part 1211, and the executing part 132 is switched to the first position. Here, when the driving part 131 drives the push rod 1321 to move, the push rod 1321 can push the first locking part 1322 to move towards the first locking matching part 1211, so as to realize the limitingly matched state of the first locking part 1322 and the first locking matching part 1211. When the first locking part 1322 is limitingly matched with the first locking matching part 1211, the executing part 132 is switched to the first position, so as to realize the purpose of limiting the rotation of the rotating part 121 by the executing part 132, and to achieve the purpose of locking the transmission assembly 120, thereby realizing the parking brake.

[0122] In some embodiments, as shown in Figure 2 The rotating member 121 is hollow inside, at least part of the push rod 1321 is arranged in the rotating member 121, and the first locking member 1322 is arranged between the push rod 1321 and the rotating member 121. When the driving member 131 drives the push rod 1321 to move, the push rod 1321 can push the first locking member 1322 to move towards the first locking matching member 1211, so as to facilitate the limiting cooperation between the first locking member 1322 and the first locking matching member 1211, and achieve the purpose of limiting the rotation of the rotating member 121.

[0123] Meanwhile, by arranging at least part of the push rod 1321 in the rotating member 121, the execution member 132 can also to some extent avoid occupying the space in the axial direction of the rotating member 121, so as to realize the reduction of the axial size of the brake 1000.

[0124] Optionally, as shown in Figure 2 The push rod 1321 extends in the axial direction of the rotating member 121, so that at least part of the push rod 1321 is located between the driving member 131 and the first locking member 1322, and the outer peripheral wall of at least part of the push rod 1321 extends in the direction away from the rotating member 121 in the direction from the driving member 131 to the first locking member 1322. Here, when the push rod 1321 is arranged to extend in the axial direction of the rotating member 121, at least part of the push rod 1321 can be located between the driving member 131 and the first locking member 1322, and at this time, in the direction from the driving member 131 to the first locking member 1322, the outer peripheral wall of at least part of the push rod 1321 is arranged to extend in the direction away from the rotating member 121, so that when the driving member 131 drives the push rod 1321 to move, the push rod 1321 can push the first locking member 1322 to move towards the first locking matching member 1211, reducing the difficulty of pushing the push rod 1321.

[0125] In some embodiments, as shown in Figure 2 The push rod 1321 includes a pushing section 13212 for pushing the first locking member 1322 to move towards the first locking matching member 1211. In this way, the first locking member 1322 is pushed by the push rod 1321 to move towards the first locking matching member 1211, reducing the difficulty of pushing the push rod 1321.

[0126] In some embodiments, as shown in Figure 2As shown, the pushing section 13212 is formed in a conical shape, and the radial dimension of the pushing section 13212 gradually decreases in the direction from the driving member 131 to the first locking member 1322. Thus, the outer peripheral wall of the pushing section 13212 can extend obliquely away from the rotating member 121 in the direction from the driving member 131 to the first locking member 1322, and the pushing section 13212 can effectively push the first locking member 1322 to move when the driving member 131 drives the push rod 1321 to move, so as to realize the limiting cooperation between the first locking member 1322 and the first locking cooperation member 1211.

[0127] In some embodiments, as shown in Figure 2 As shown, the pushing section 13212 is formed in a conical shape, and the bottom surface of the conical shape is arranged close to the driving member 131, so that the outer peripheral wall of the pushing section 13212 can extend obliquely away from the rotating member 121 in the direction from the driving member 131 to the first locking member 1322, so as to push the first locking member 1322 to move by the push rod 1321, and reduce the locking difficulty of the locking assembly 130 to the rotating member 121.

[0128] In some embodiments, as shown in Figure 2 As shown, the push rod 1321 comprises a connecting section 13211, the connecting section 13211 is connected to the driving member 131, and the pushing section 13212 is connected to one end of the connecting section 13211 away from the driving member 131. That is, the push rod 1321 comprises the connecting section 13211 and the pushing section 13212, and the connecting section 13211 is connected to the driving member 131 and the pushing section 13212, so as to connect the pushing section 13212 to the driving member 131, reduce the connection strength between the pushing section 13212 and the driving member 131, and facilitate the movement of the pushing section 13212 driven by the driving member 131, and further reduce the control difficulty of the push rod 1321.

[0129] In some embodiments, as shown in Figure 2 , Figure 4 and Figure 5 As shown, the executing member 132 further comprises a resetting member 1323, and the resetting member 1323 is used to push the first locking member 1322 to move away from the first locking cooperation member 1211, so as to switch the executing member 132 to the second position. Thus, the rotating member 121 can be unlocked, so that the rotating member 121 can effectively rotate under the driving of the motor 111, so as to ensure the working performance of the brake 1000, and the brake 1000 can start to perform the service brake.

[0130] That is, when the rotating member 121 needs to be locked, the driving member 131 drives the push rod 1321 to move towards the first locking member 1322, so as to push the first locking member 1322 to move towards the first locking matching member 1211, and the first locking member 1322 is in position matching with the first locking matching member 1211, so as to achieve the purpose of locking the rotating member 121; when the rotating member 121 needs to be unlocked, the driving member 131 drives the push rod 1321 to move towards the driving member 131, at this time, the force of the push rod 1321 pushing the first locking member 1322 to move disappears, and when the push rod 1321 is spaced apart from the first locking member 1322, the reset member 1323 is used to push the first locking member 1322 to move away from the first locking matching member 1211, and the first locking member 1322 is out of position matching with the first locking matching member 1211, so as to achieve the purpose of unlocking the rotating member 121.

[0131] In a specific example, when the force of the push rod 1321 pushing the first locking member 1322 to move disappears, the reset member 1323 is used to push the first locking member 1322 to move away from the first locking matching member 1211 to switch the executing member 132 to the second position.

[0132] Specifically, when the rotating member 121 needs to be locked, the driving member 131 drives the push rod 1321 to move towards the first locking member 1322, so as to push the first locking member 1322 to move towards the first locking matching member 1211, and the first locking member 1322 is in position matching with the first locking matching member 1211, so as to achieve the purpose of locking the rotating member 121; when the rotating member 121 needs to be unlocked, the driving member 131 drives the push rod 1321 to move towards the driving member 131, at this time, the force of the push rod 1321 pushing the first locking member 1322 to move disappears, and when the push rod 1321 is spaced apart from the first locking member 1322, the reset member 1323 is used to push the first locking member 1322 to move away from the first locking matching member 1211, and the first locking member 1322 is out of position matching with the first locking matching member 1211, so as to achieve the purpose of unlocking the rotating member 121.

[0133] In some embodiments, in combination with the above-mentioned embodiments, the reset member 1323 is a reset spring, the reset spring is sleeved on the outer periphery of the first locking member 1322, one end of the reset spring is fixedly connected with the first locking member 1322, and the other end of the reset spring is fixedly connected with other structural members (such as the guide member 133 below). Figure 2 、 Figure 4 and Figure 5 In some embodiments, in combination with the above-mentioned embodiments, the reset member 1323 is a reset spring, the reset spring is sleeved on the outer periphery of the first locking member 1322, one end of the reset spring is fixedly connected with the first locking member 1322, and the other end of the reset spring is fixedly connected with other structural members (such as the guide member 133 below).

[0134] In some embodiments, as shown in Figure 4 The first locking member 1322 is a pawl, and the first locking matching member 1211 is a ratchet wheel, and the pawl is in abutting engagement with the ratchet wheel in the first position. The limiting engagement between the first locking member 1322 and the first locking matching member 1211 is achieved, so as to facilitate the rotation of the rotating member 121 by the executing member 132, and the transmission assembly 120 is locked.

[0135] Meanwhile, the rotation of the rotating member 121 is limited by the pawl and the ratchet wheel, which can effectively simplify the structure of the locking assembly 130, and further reduce the assembly difficulty and arrangement difficulty of the locking assembly 130.

[0136] Of course, in other embodiments, the first locking member 1322 can also be formed as a locking rod, which extends towards the first locking matching member 1211, and the first locking matching member 1211 is formed as a locking hole or a locking groove, and the locking rod is in limiting engagement in the locking hole or the locking groove, so as to achieve the limiting engagement between the first locking member 1322 and the first locking matching member 1211, and the rotation of the rotating member 121 is limited.

[0137] In some embodiments, as shown in Figure 4 and Figure 5 The first locking member 1322 includes a plurality of first locking members 1322, which are arranged at intervals around the outer periphery of the push rod 1321. The plurality of first locking members 1322 can increase the limiting strength of the executing member 132, so that the rotating member 121 can be effectively limited by the executing member 132, and the transmission assembly 120 can be locked during braking, and the parking brake is achieved.

[0138] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0139] In some embodiments, as shown in Figure 4 and Figure 5 When the first locking member 1322 is formed as a pawl, the ratchet wheel is arranged on the inner peripheral wall of the rotating member 121, and the plurality of pawls and the ratchet wheel are matched to increase the limiting strength of the executing member 132.

[0140] In addition, when the first locking member 1322 is formed as a locking rod, the locking hole or the locking groove is also formed as a plurality of locking holes or a plurality of locking grooves, and the plurality of locking rods and the plurality of locking holes or the plurality of locking grooves are matched one by one, so as to increase the limiting strength of the executing member 132.

[0141] In some embodiments, as shown in Figure 2 and Figure 5As shown, the locking assembly 130 further comprises a guide 133, at least part of the guide 133 is arranged between the rotating member 121 and the push rod 1321, the first locking member 1322 is arranged through the guide 133, and the guide 133 is used to limit the moving direction of the first locking member 1322. Thus, the first locking member 1322 can move in a predetermined direction, and the accuracy of the movement of the first locking member 1322 is ensured, so as to realize the limiting cooperation between the first locking member 1322 and the first locking cooperating member 1211, and the purpose of limiting the rotation of the rotating member 121 by the first locking member 1322 is achieved.

[0142] In a specific example, the first locking member 1322 completes the actions of pushing out and retracting through the guide 133, and the accuracy of the actions is ensured.

[0143] In some embodiments, in combination with Figure 2 and Figure 5 As shown, the guide 133 is locked and fixed on the first housing 161 by bolts, so as to realize the support of the guide 133 by the first housing 161, improve the position stability of the guide 133, and thus ensure the working performance of the guide 133.

[0144] In some embodiments, the guide 133 is provided with a guide opening, and the first locking member 1322 is arranged through the guide opening, so as to limit the moving direction of the first locking member 1322 by the guide 133, and reduce the cooperation difficulty between the guide 133 and the first locking member 1322.

[0145] In some embodiments, as shown in Figure 2 The driving member 131 comprises an electromagnetic module 1311 that can be energized, and the electromagnetic module 1311 is magnetically attracted to the push rod 1321. Thus, the movement of the push rod 1321 is driven by the driving member 131, the movement difficulty of the push rod 1321 is reduced, and thus the locking difficulty of the locking assembly 130 is reduced.

[0146] Here, the electromagnetic module 1311 can be understood as an electromagnet, and the electromagnet is magnetically attracted to the push rod 1321 to drive the movement of the push rod 1321.

[0147] In some embodiments, as shown in Figure 2 The actuator 100 comprises a PCB board 180 (Printed Circuit Board), which is arranged in the housing 160 and electrically connected to the electromagnetic module 1311, so as to energize the electromagnetic module 1311 by the PCB board 180, facilitate the magnetic attraction cooperation between the electromagnetic module 1311 and the push rod 1321, and ensure the working performance of the electromagnetic module 1311 to a certain extent.

[0148] Optionally, as shown in Figure 2As shown, the electromagnetic module 1311 is integrated in the first housing 161, and the first housing 161 is provided with a wire outlet hole 1611, and the connecting wire of the electromagnetic module 1311 is connected with the PCB 180 through the wire outlet hole 1611, so as to realize the electrical connection between the PCB 180 and the electromagnetic module 1311, and reduce the electrical connection difficulty between the PCB 180 and the electromagnetic module 1311.

[0149] Meanwhile, by integrating the electromagnetic module 1311 in the first housing 161, the first housing 161 can also support the electromagnetic module 1311, so as to improve the position stability of the electromagnetic module 1311, and ensure the working performance of the electromagnetic module 1311 to a certain extent.

[0150] In some embodiments, the electromagnetic module 1311 is provided with a bolt hole, and the electromagnetic module 1311 is fixed on the first housing 161 through a bolt, so as to realize the integration of the electromagnetic module 1311 in the first housing 161, and reduce the integration difficulty of the electromagnetic module 1311 and the first housing 161. The cooperation relationship between the electromagnetic module 1311 and the first housing 161 can be referred to Figure 2 and Figure 3 .

[0151] In some embodiments, as shown in Figure 2 , the PCB 180 is sleeved on the outer periphery of the transmission assembly 120, so as to further reduce the axial size of the brake 1000.

[0152] Optionally, the driving member 131 is configured to push the push rod 1321 to reciprocate by controlling the current direction of the electromagnetic module 1311. That is, by controlling the current direction of the electromagnetic module 1311, the push rod 1321 can be pushed to reciprocate, so as to achieve the purpose of driving the push rod 1321 to reciprocate by the driving member 131, reduce the driving difficulty of the push rod 1321 to reciprocate, and enable the executing member 132 to effectively switch between the first position of limiting the rotation of the rotating member 121 and the second position of unlocking the rotating member 121.

[0153] In some embodiments, as shown in Figure 2 , when the electromagnetic module 1311 is forward powered, the push rod 1321 can be driven to move towards the first locking member 1322, so as to switch the executing member 132 to the first position of limiting the rotation of the rotating member 121; when the electromagnetic module 1311 is reversely powered, the push rod 1321 can be driven to move towards the electromagnetic module 1311, so as to switch the executing member 132 to the second position of unlocking the rotating member 121.

[0154] In some embodiments, the electromagnetic module 1311 is provided with a permanent magnet, which is used to control the electromagnetic module 1311 to keep magnetic attraction with the push rod 1321 after the electromagnetic module 1311 is powered off. That is, by providing the electromagnetic module 1311 with a permanent magnet, the electromagnetic module 1311 can keep magnetic attraction with the push rod 1321 after the electromagnetic module 1311 is powered off, so that the parking state of the brake 1000 can be maintained without continuous power supply, at this time the electromagnetic module 1311 does not need to output a holding current, standby power consumption is zero, thereby reducing the power consumption of the brake 1000 and avoiding the heating problem of the electromagnetic module 1311.

[0155] In summary, the locking assembly 130 of the present application is a bidirectional holding type electromagnetic module 1311 that pushes the push rod 1321 to move, when the push rod 1321 moves towards the first locking piece 1322, the pawl pushes the ratchet to be locked, achieving the purpose of locking the rotating piece 121, thereby realizing the demand of parking brake.

[0156] At the same time, the electromagnetic module 1311 is provided with a permanent magnet, when the electromagnetic module 1311 is in a powered-off state, the push rod 1321 still has a holding force, which can maintain the locking of the rotating piece 121.

[0157] Through the above setting, in a specific example, as shown in Figure 2 When the electromagnetic module 1311 is powered on and pushed out, it drives the push rod 1321 to move towards the first locking piece 1322, because the outer surface of the pushing section 13212 of the push rod 1321 is a conical surface, when the push rod 1321 moves towards the first locking piece 1322, it can push the first locking piece 1322 formed as a pawl to move along the guide piece 133 towards the rotating piece 121, at this time it can also compress the reset piece 1323, when the pawl is locked with the first locking piece 1211 formed as a ratchet on the rotating piece 121, the rotating piece 121 cannot be rotated, achieving the purpose of limiting the rotation of the rotating piece 121, the brake 1000 realizes the parking function, at this time the electromagnetic module 1311 can be powered off, and the holding force provided by the permanent magnet inside the electromagnetic module 1311 can continue to maintain the pushed-out state of the push rod 1321; when the electromagnetic module 1311 is reversely powered on, the electromagnetic module 1311 drives the push rod 1321 to move towards the electromagnetic module 1311, at this time the pawl is pushed out along the guide direction of the guide piece 133 by the elastic force of the reset piece 1323, so that the pawl is separated from the ratchet on the rotating piece 121, the parking brake is released at this time, and the rotating piece 121 can rotate normally.

[0158] In some embodiments, as shown in Figure 7As shown, the driving member 131 comprises an electric coil 1312, the executing member 132 comprises a second locking member and a second locking matching member 1325 connected to the rotating member 121, and the electric coil 1312 is magnetically attracted to the second locking member to control the second locking member to lock or release the second locking matching member 1325. That is, the driving member 131 is not limited to the electromagnetic module 1311, and the executing member 132 is not limited to the push rod 1321 and the first locking member 1322. The driving member 131 is arranged to comprise the electric coil 1312, and the executing member 132 is arranged to comprise the second locking member and the second locking matching member 1325. When the electric coil 1312 is magnetically attracted to the second locking member to lock the second locking matching member 1325, the rotating member 121 is locked, and the brake 1000 functions as a parking brake. When the electric coil 1312 is magnetically attracted to the second locking member to release the second locking matching member 1325, the rotating member 121 is released, and the brake 1000 functions as a service brake.

[0159] In some embodiments, as shown, Figure 7 The second locking member comprises a first matching member 1324 and a second matching member 1326, and at least part of the second locking matching member 1325 is arranged between the first matching member 1324 and the second matching member 1326. The electric coil 1312 is magnetically attracted to the first matching member 1324 and / or the second matching member 1326 to control the first matching member 1324 and / or the second matching member 1326 to move relative to the second locking matching member 1325. Here, the electric coil 1312 is magnetically attracted to the first matching member 1324, or the electric coil 1312 is magnetically attracted to the second matching member 1326, or the electric coil 1312 is magnetically attracted to the first matching member 1324 and the second matching member 1326.

[0160] When the electric coil 1312 is magnetically attracted to the first matching member 1324, the electric coil 1312 is used to control the first matching member 1324 to move relative to the second locking matching member 1325. When the electric coil 1312 is magnetically attracted to the second matching member 1326, the electric coil 1312 is used to control the second matching member 1326 to move relative to the second locking matching member 1325. When the electric coil 1312 is magnetically attracted to the first matching member 1324 and the second matching member 1326, the electric coil 1312 is used to control the first matching member 1324 and the second matching member 1326 to move relative to the second locking matching member 1325, thereby facilitating the control of the second locking member to lock or release the second locking matching member 1325.

[0161] In a specific example, when the first engaging member 1324 and / or the second engaging member 1326 moves towards the second locking engaging member 1325 and abuts against the second locking engaging member 1325, the first engaging member 1324 and the second engaging member 1326 engage to lock the second locking engaging member 1325, and when the first engaging member 1324 and / or the second engaging member 1326 moves away from the second locking engaging member 1325 and is spaced apart from the second locking engaging member 1325, the first engaging member 1324 and the second engaging member 1326 are used to release the second locking engaging member 1325.

[0162] In some embodiments, as shown in Figure 7 the first engaging member 1324 and the second engaging member 1326 are both formed as locking plates, and the second locking engaging member 1325 is formed as a locking engaging plate connected to the outer circumferential wall of the rotating member 121, and the two locking plates are spaced apart on opposite sides of the locking engaging plate. That is, the first engaging member 1324 and the second engaging member 1326 are spaced apart on opposite sides of the second locking engaging member 1325, so as to lock or release the second locking engaging member 1325 by using the first engaging member 1324 and the second engaging member 1326, thereby reducing the difficulty of locking and releasing the second locking engaging member 1325, and also reducing the difficulty of forming the first engaging member 1324, the second engaging member 1326 and the second locking engaging member 1325.

[0163] In some embodiments, the rotating member 121 is provided with a mounting groove, and the second locking engaging member 1325 is connected to the rotating member 121 through the mounting groove, so as to realize the arrangement of the second locking engaging member 1325 on the rotating member 121, reduce the assembly difficulty of the second locking engaging member 1325 and the rotating member 121, and ensure the connection strength of the second locking engaging member 1325 and the rotating member 121, thereby facilitating the use of the locking assembly 130 to limit the rotation of the rotating member 121.

[0164] In some embodiments, the coil 1312 is electrically connected to the PCB 180, and the PCB 180 is used to energize the coil 1312, so that the coil 1312 can be magnetically attracted to the first engaging member 1324 and / or the second engaging member 1326 to control the locking or releasing of the second locking engaging member 1325 by the first engaging member 1324 and the second engaging member 1326.

[0165] In some embodiments, as shown in Figure 7 the first engaging member 1324 is arranged on one side of the second locking engaging member 1325 facing the coil 1312, and the second engaging member 1326 is arranged on the other side of the second locking engaging member 1325 away from the coil 1312, so as to arrange at least part of the second locking engaging member 1325 between the first engaging member 1324 and the second engaging member 1326.

[0166] Optionally, the first engaging member 1324 is movably engaged with the second locking engaging member 1325, and the second engaging member 1326 is fixedly arranged on one side of the second locking engaging member 1325 and magnetically engaged with the first engaging member 1324 for controlling the movement of the first engaging member 1324 relative to the second locking engaging member 1325, so as to control the locking or releasing of the second locking engaging member 1325 by the first engaging member 1324 and the second engaging member 1326.

[0167] In some embodiments, the coil 1312 is arranged in the coil ring to support and protect the coil 1312 by the coil ring and to ensure the working performance of the coil 1312 to a certain extent.

[0168] In a specific example, when the coil 1312 is not powered, the first engaging member 1324 and the second engaging member 1326 tightly engage the second locking engaging member 1325 by the compression spring, so that the second locking engaging member 1325 is limited to rotate, and the rotary member 121 is limited to rotate due to the connection between the second locking engaging member 1325 and the rotary member 121, so that the brake 1000 functions as a parking brake; when the coil 1312 is powered, the coil 1312 in the coil ring has magnetism, and the coil 1312 is magnetically engaged with the first engaging member 1324, so that the first engaging member 1324 tightly engages the coil ring to overcome the elastic force of the compression spring and release the second locking engaging member 1325, so that the second locking engaging member 1325 can rotate with the rotary member 121, and the brake 1000 can start to function as a service brake.

[0169] In some embodiments, as shown in Figure 7 and Figure 8 , the locking assembly 130 is arranged on the outer periphery of the rotary member 121. By arranging the locking assembly 130 on the outer periphery of the rotary member 121, the space on the outer periphery of the rotary member 121 can be fully utilized, so as to reduce the axial size of the brake 1000 and make the brake 1000 better adapt to the wheel environment.

[0170] In addition, by arranging the locking assembly 130 on the outer periphery of the rotary member 121, the locking assembly 130 can be formed as a shaft-holding type brake scheme to limit the radial rotation of the rotary member 121, and the shaft-holding type scheme is more stable and reliable.

[0171] In some embodiments, as shown in Figure 7 and Figure 8 , the locking assembly 130 is formed as a ring structure to arrange the locking assembly 130 on the outer periphery of the rotary member 121.

[0172] Optionally, the first fitting member 1324 and the second fitting member 1326 are formed as a fitting ring, and the second locking fitting member 1325 is formed as a rotation-stopping ring, both of which are sleeved on the outer periphery of the rotating member 121, so as to sleeve the locking assembly 130 on the outer periphery of the rotating member 121 and reduce the assembly difficulty of the locking assembly 130 and the rotating member 121.

[0173] Meanwhile, the fitting of the fitting ring and the rotation-stopping ring can also increase the contact area, thereby increasing the fitting strength, so that the rotating member 121 can be effectively locked by the locking assembly 130.

[0174] Optionally, as shown in Figure 2 and Figure 7 , the actuator 100 further comprises a detection assembly 140 for detecting the position of the rotor 1112. On the one hand, it is convenient to control the current of the stator 1111 to accurately control the rotation of the rotor 1112 when parking, so that the position of the rotor 1112 is accurate, thereby ensuring the working performance of the motor 111; on the other hand, since the rotor 1112 is connected to the rotating member 121, the position of the rotating member 121 can be accurately controlled by accurately controlling the position of the rotor 1112, so that when the locking assembly 130 locks the rotating member 121, the first locking member 1322 can be reset under the action of the reset member 1323 to a certain extent, thereby ensuring the working performance of the locking assembly 130 to a certain extent, and the brake 1000 can be used for driving braking.

[0175] In some embodiments, as shown in Figure 2 and Figure 7 , the detection assembly 140 comprises a sensor and a magnetic ring 142, and the magnetic ring 142 is arranged on the rotating member 121, and the sensor is used for detecting the rotation angle of the magnetic ring 142. Thus, the position of the rotor 1112 can be detected, and the difficulty of detecting the position of the rotor 1112 is reduced.

[0176] In some embodiments, the sensor is formed as an angular velocity sensor, which is arranged on and electrically connected to the PCB board 180, so as to read the rotation angle and the rotation speed of the magnetic ring 142 by the angular velocity sensor, thereby achieving the purpose of detecting the rotation angle and the rotation speed of the rotor 1112 by the detection assembly 140, so that the motor 111 can be accurately controlled according to different control strategies.

[0177] In a specific example, when the motor 111 rotates the rotating member 121, the magnetic ring 142 rotates to change the angle of the magnetic ring 142, and the angle and rotation speed of the magnetic ring 142 are detected by the sensor integrated on the PCB 180, so that the rotation angle and rotation speed of the motor 111 can be detected in real time. According to the real-time feedback of the rotation angle and rotation speed, closed-loop control is realized.

[0178] In some embodiments, the magnetic ring 142 is sleeved on the outer periphery of the transmission assembly 120 to reduce the axial size of the brake 1000.

[0179] In some embodiments, as shown in Figure 2 and Figure 7 The detection assembly 140 further includes a magnetic ring sleeve 141, and the magnetic ring 142 is arranged on the rotating member 121 through the magnetic ring sleeve 141 to reduce the fixing difficulty of the magnetic ring 142.

[0180] The magnetic ring sleeve 141 can be in interference fit with the rotating member 121 to achieve fixed connection of the magnetic ring sleeve 141 and the rotating member 121, so that the magnetic ring 142 is arranged on the rotating member 121 by the magnetic ring sleeve 141.

[0181] Optionally, the magnetic ring sleeve 141 is made of racing steel material, so that the magnetic ring sleeve 141 is formed as a non-magnetic member, thereby avoiding demagnetization of the magnetic ring 142 to some extent, so as to ensure that the position of the rotor 1112 can be effectively detected by the sensor and the magnetic ring 142, and the working performance of the detection assembly 140 is ensured.

[0182] In some embodiments, the moving member 122 is rotatably connected with the rotating member 121. In this way, during the movement of the moving member 122 driven by the rotating member 121, the moving member 122 can not only move relative to the rotating member 121, but also rotate relative to the rotating member 121, so as to drive the force amplification lever 200 to move, thereby increasing the pushing force of the moving member 122 by the force amplification lever 200, and the braking performance of the brake 1000 is ensured to some extent.

[0183] In some embodiments, as shown in Figure 7As shown, the moving piece 122 comprises a first moving piece 1222 and a second moving piece 1223, the first moving piece 1222 is connected with the rotating piece 121 and forms a motion pair with the rotating piece 121, the second moving piece 1223 is rotatably connected with the first moving piece 1222, and the second moving piece 1223 is connected with the force amplification lever 200. Wherein, by connecting the first moving piece 1222 with the rotating piece 121 and forming a motion pair with the rotating piece 121, the first moving piece 1222 is driven to move by the rotating piece 121. Since the second moving piece 1223 is rotatably connected with the first moving piece 1222 and the second moving piece 1223 is connected with the force amplification lever 200, the force amplification lever 200 is driven to move by the second moving piece 1223 during the movement of the first moving piece 1222, so as to increase the pushing force of the moving piece 122 by the force amplification lever 200.

[0184] Meanwhile, by rotatably connecting the second moving piece 1223 with the first moving piece 1222, the second moving piece 1223 can be rotatably connected with the rotating piece 121, so that the moving piece 122 can effectively drive the force amplification lever 200 to move.

[0185] In some embodiments, when the moving piece 122 comprises the first moving piece 1222 and the second moving piece 1223, as shown in Figure 7 As shown, the rotating connecting head 1221 is arranged on the second moving piece 1223, so that when the second moving piece 1223 is connected with the force amplification lever 200, the rotating connecting head 1221 can be used to rotatably connect the second moving piece 1223 with the force amplification lever 200, so as to drive the force amplification lever 200 to rotate by the second moving piece 1223, thereby increasing the pushing force of the moving piece 122 by the force amplification lever 200.

[0186] In some embodiments, as shown in Figure 7 As shown, a rotating piece 1224 is arranged between the first moving piece 1222 and the second moving piece 1223, at least part of the first moving piece 1222 is arranged outside the rotating piece 1224 and is fixedly connected with the rotating piece 1224, the rotating piece 1224 is internally provided with a rotating cavity 1225, and the second moving piece 1223 is rotatably arranged in the rotating cavity 1225. That is, the first moving piece 1222 is fixedly connected with the rotating piece 1224, the second moving piece 1223 is rotatably connected with the rotating piece 1224, thereby realizing the rotatable connection between the second moving piece 1223 and the first moving piece 1222, and reducing the difficulty of rotatably connecting the second moving piece 1223 with the first moving piece 1222.

[0187] In some embodiments, as shown in Figure 7As shown, the rotating cavity 1225 is provided with a second elastic member 1226, and the opposite ends of the second elastic member 1226 are connected with the second moving member 1223 and the adapter 1224 respectively. Since the second elastic member 1226 can be deformed under the action of external force, the second elastic member 1226 can be arranged in the rotating cavity 1225 while avoiding hindering the rotation of the second moving member 1223, so as to realize the rotation of the second moving member 1223 in the rotating cavity 1225 and reduce the difficulty of the rotation connection between the second moving member 1223 and the adapter 1224.

[0188] In some embodiments, as shown in Figure 7 As shown, the second elastic member 1226 is a spring, which is sleeved on the outer periphery of the second moving member 1223, and one end of the spring is fixedly connected with the second moving member 1223 and the other end is fixedly connected with the adapter 1224, so as to realize the rotation of the second moving member 1223 in the rotating cavity 1225.

[0189] In some embodiments, as shown in Figure 7 As shown, the actuator 100 further comprises a rotation-stopping member 150, which is connected with the moving member 122, and the rotation-stopping member 150 is used to limit the rotation of the moving member 122 along the circumference thereof. Thus, the rotation-stopping member 150 can limit the radial rotation of the lead screw and ensure that the moving member 122 can be effectively driven to move during the rotation of the rotating member 121, so as to ensure the working performance of the transmission assembly 120.

[0190] In some embodiments, as shown in Figures 1-5 As shown, the rotation-stopping member 150 is formed as a spline shaft, and the moving member 122 is sleeved on the outer periphery of the spline shaft, and the spline shaft is connected with the moving member 122 to limit the radial rotation of the moving member 122 and play the role of rotation-stopping.

[0191] Of course, in some other embodiments, the rotation-stopping member 150 can also be arranged at the connection between the moving member 122 and the force amplification lever 200, such as: the rotation-stopping member 150 is formed as a rotation-stopping protrusion arranged on the circumference of the moving member 122, and the rotation-stopping protrusion is connected with the rotation-stopping groove on the force amplification lever 200, so as to limit the radial rotation of the moving member 122 and play the role of rotation-stopping.

[0192] In summary, the transmission assembly 120 of the brake 1000 is embedded in the inside of the power assembly 110, and the transmission assembly 120 is arranged to form a ball screw mechanism, so that the transmission assembly 120 can efficiently convert the rotary motion of the motor 111 into horizontal motion, and further increase the pushing force of the brake 1000 through the force amplification lever 200, but since the ball screw mechanism does not have self-locking capability, it cannot realize the parking brake function alone, therefore the application utilizes the mechanism that the driving member 131 can quickly respond after being powered on, to quickly lock the rotating member 121 of the ball screw mechanism, so that the brake 1000 can flexibly and freely realize the switching between the driving brake and the parking brake.

[0193] At the same time, when the driving member 131 is formed as an electromagnetic module 1311, a permanent magnet is arranged on the electromagnetic module 1311, so that the electromagnetic module 1311 does not need to be continuously powered to maintain the parking state, which can greatly reduce the power consumption of the brake 1000 and avoid the heating problem of the electromagnetic module 1311.

[0194] The specific structure of the brake 1000 in the specific embodiment of the application will be described below with reference to the accompanying drawings of the specification. The embodiments of the application can be all embodiments obtained by combining the foregoing technical solutions, and are not limited to the specific embodiments described below.

[0195] Embodiment 1

[0196] A brake 1000, in combination Figure 2 as shown, comprising an actuator 100, a force amplification lever 200, a brake pad 300 and a push disc 400.

[0197] Among them, as Figure 2 shown, the actuator 100 comprises a power assembly 110, a transmission assembly 120, a locking assembly 130, a detection assembly 140, a housing 160 and a PCB 180, and the power assembly 110, the transmission assembly 120, the locking assembly 130, the detection assembly 140 and the PCB 180 are all arranged in the housing 160.

[0198] As Figure 1 shown, the power assembly 110 comprises a motor 111, the motor 111 comprises a stator 1111 and a rotor 1112, the stator 1111 is sleeved on the outer periphery of the rotor 1112, the rotor 1112 is arranged on the outer periphery of the transmission assembly 120, the transmission assembly 120 comprises a rotating member 121 and a moving member 122, the rotating member 121 is a screw sleeve, and the moving member 122 is a lead screw, the screw sleeve is sleeved on the lead screw to form a ball screw mechanism, and the stator 1111 and the rotor 1112 cooperate to drive the rotating member 121 to rotate to control the reciprocating movement of the moving member 122, so as to output the pushing force.

[0199] In combination Figure 9 ,Figure 10 、 Figure 11 、 Figure 12 and Figure 1 As shown in

[0200] The force amplification lever 200 is used to amplify the pushing force, and the pushing force amplified by the force amplification lever 200 reaches the push disc 400, and the push disc 400 pushes the brake shoe 300 to complete the braking action.

[0201] As shown in Figure 2 and Figure 2 The locking assembly 130 is arranged at one end of the rotating member 121 in the axial direction, and is used to lock the rotating member 121 to limit the rotation of the rotating member 121, so as to realize the locking or unlocking of the transmission assembly 120 by the locking assembly 130, and limit the movement of the transmission assembly 120 when locked.

[0202] As shown in Figure 2As shown, the locking assembly 130 comprises a driving member 131, an executing member 132 and a guiding member 133. The driving member 131 comprises an electromagnetic module 1311, which is electrically connected with a PCB board 180 for controlling the electromagnetic module 1311 to be forward energized, reversely energized or de-energized. A permanent magnet is arranged on the electromagnetic module 1311. The executing member 132 comprises a push rod 1321, a plurality of first locking members 1322 and a reset member 1323. The first locking members 1322 are pawls. The push rod 1321 comprises a connecting segment 13211 and a pushing segment 13212. The connecting segment 13211 is connected with the driving member 131. The pushing segment 13212 is connected with one end of the connecting segment 13211 away from the driving member 131. The electromagnetic module 1311 is magnetically attracted with the push rod 1321. The driving member 131 is configured to reciprocally move the push rod 1321 by controlling the current direction of the electromagnetic module 1311. The permanent magnet can continue to be magnetically attracted with the push rod 1321 after the electromagnetic module 1311 is de-energized.

[0203] As shown in Figure 2 , the rotating member 121 is hollow inside. At least part of the push rod 1321 is arranged inside the rotating member 121. The plurality of first locking members 1322 are arranged at intervals around the outer periphery of the push rod 1321, so that the plurality of first locking members 1322 are located between the push rod 1321 and the rotating member 121. At least part of the guiding member 133 is arranged between the rotating member 121 and the push rod 1321. The first locking members 1322 are arranged through the guiding member 133. The guiding member 133 is used to limit the moving direction of the first locking members 1322. The push rod 1321 extends along the axial direction of the rotating member 121. In the moving direction of the push rod 1321 towards the first locking members 1322, the outer peripheral wall of the pushing segment 13212 extends obliquely away from the first locking members 1322, so that when the driving member 131 drives the push rod 1321 to move, the push rod 1321 can push the first locking members 1322 to move towards the rotating member 121.

[0204] As shown in Figure 2 , the rotating member 121 is provided with a first locking matching member 1211, which is a ratchet wheel. When the push rod 1321 pushes the first locking members 1322 to move towards the rotating member 121, the pawl and the ratchet wheel are in abutting cooperation, so as to lock the rotating member 121 and limit the rotation of the rotating member 121.

[0205] As shown in Figure 4 , Figure 5 and Figure 2 , the reset member 1323 is a reset spring, which is sleeved around the outer periphery of the first locking members 1322. The reset member 1323 is used to push the first locking members 1322 to move away from the first locking matching member 1211, so as to unlock the rotating member 121, so that the rotating member 121 can be rotated under the driving of the motor 111.

[0206] As shown in Figure 6 , the detection assembly 140 includes a sensor and a magnetic ring 142 arranged on the rotating member 121, the sensor is electrically connected with the PCB board 180, the sensor is used for detecting the rotation angle of the magnetic ring 142, so as to achieve the purpose of detecting the position of the rotor 1112.

[0207] Embodiment 2

[0208] A brake 1000, based on embodiment 1, different from embodiment 1 is that, as shown in Figure 7 , Figure 8 and Figure 2 , the locking assembly 130 is sleeved on the outer periphery of the rotating member 121, the locking assembly 130 includes a coil 1312, the coil 1312 is electrically connected with the PCB board 180, the PCB board 180 is used for controlling the coil 1312 to be powered on or powered off, the executing member 132 includes a first matching member 1324, a second locking matching member 1325 and a second matching member 1326, the second locking matching member 1325 is connected with the rotating member 121, at least part of the second locking matching member 1325 is arranged between the first matching member 1324 and the second matching member 1326, the coil 1312 is magnetically attracted with the first matching member 1324 to control the first matching member 1324 and the second matching member 1326 to lock or release the second locking matching member 1325.

[0209] When the first matching member 1324 and the second matching member 1326 lock the second locking matching member 1325, the rotation of the rotating member 121 can be limited; when the first matching member 1324 and the second matching member 1326 release the second locking matching member 1325, the rotating member 121 can rotate under the driving of the motor 111.

[0210] In addition, different from embodiment 1, as shown in Figure 4 , the executing mechanism 100 further includes a rotation limiting member 150, the rotation limiting member 150 cooperates with the moving member 122, the rotation limiting member 150 is used for limiting the moving member 122 to rotate along the circumferential direction thereof, the moving member 122 includes a first moving member 1222 and a second moving member 1223, the first moving member 1222 is connected with the rotating member 121 and forms a kinematic pair with the rotating member 121, the second moving member 1223 is rotationally connected with the first moving member 1222, the second moving member 1223 is connected with the force amplification lever 200 through a rotation connecting head 1221.

[0211] The brake system of the embodiment of the application is described below.

[0212] The brake system according to the embodiment of the application includes a brake 1000.

[0213] The brake 1000 is the aforementioned brake 1000, and the specific structure of the brake 1000 is not described herein.

[0214] From the above structure, the brake system of the embodiment of the application, by using the foregoing brake 1000, makes the brake system not only simple in structure, but also can output larger braking force, so as to optimize the working performance of the brake system.

[0215] The vehicle of the embodiment of the application is described below.

[0216] The vehicle according to the embodiment of the application comprises a brake system.

[0217] The brake system is the foregoing brake system, and the specific structure of the brake system is not described herein.

[0218] From the above structure, the vehicle of the embodiment of the application, by using the foregoing brake system, uses the foregoing brake 1000, and is beneficial to improving the performance of the vehicle.

[0219] It should be noted that the vehicle mentioned herein can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile.

[0220] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0221] ​ Four first locking members 1322 are shown for the purpose of illustration, but those skilled in the art can obviously understand that the scheme can be applied to one, two, three or more first locking members 1322 after reading the above technical scheme, which also falls within the protection scope of the application.

[0222] The other configurations of the brake 1000, the brake system and the vehicle according to the embodiment of the application, such as the driving principle of the motor 111, are known to those skilled in the art, and will not be described in detail herein.

[0223] In the description of the specification, the description using the terms "embodiment", "example", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in an appropriate manner.

[0224] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A brake characterized by, The application relates to a brake device, which comprises the following components: an actuating mechanism (100) comprising a power assembly (110) and a transmission assembly (120), the power assembly (110) comprising a motor (111), the transmission assembly (120) comprising a rotating member (121) and a moving member (122) connected to the rotating member (121), the motor (111) being used for driving the rotating member (121) to rotate so as to control the moving member (122) to move back and forth; a force amplification lever (200) connected between the transmission assembly (120) and a brake piece (300), the force amplification lever (200) being in transmission connection with the moving member (122) of the transmission assembly (120) so that the force amplification lever (200) can drive the brake piece (300) to move; a locking assembly (130) used for locking the rotating member (121) to limit the rotation of the rotating member (121), the locking assembly (130) comprising a driving member (131) and an executing member (132), the driving member (131) being used for driving the executing member (132) to move back and forth so that the executing member (132) has a first position for limiting the rotation of the rotating member (121) and a second position for unlocking the rotating member (121); wherein the executing member (132) comprises a push rod (1321) and a first locking member (1322), the push rod (1321) being connected to the driving member (131), the rotating member (121) being provided with a first locking matching member (1211), the driving member (131) being used for driving the push rod (1321) to move so as to push the first locking member (1322) to move towards the first locking matching member (1211), the first locking member (1322) being in limiting cooperation with the first locking matching member (1211), and the executing member (132) being switched to the first position; or the driving member (131) comprises a coil (1312) capable of being electrified, the executing member (132) comprising a second locking member and a second locking matching member (1325), the second locking member comprising a first matching member (1324) and a second matching member (1326), the first matching member (1324) and the second matching member (1326) being formed as locking plates, the second locking matching member (1325) being formed as a locking matching plate, the locking matching plate being connected to the outer circumferential wall of the rotating member (121), the two locking plates being arranged on the opposite sides of the locking matching plate, and the coil (1312) being in magnetic attraction cooperation with the first matching member (1324) and / or the second matching member (1326) so as to control the first matching member (1324) and / or the second matching member (1326) to move relative to the second locking matching member (1325), thereby realizing the locking or releasing of the second locking matching member (1325) by the second locking member.

2. The brake of claim 1, wherein The force amplification lever (200) comprises a first connecting part (220) and a second connecting part (230) connected with each other, one end of the first connecting part (220) away from the second connecting part (230) is connected with the transmission assembly (120), and one end of the second connecting part (230) away from the first connecting part (220) is in transmission connection with the brake piece (300).

3. The brake of claim 2, wherein The first connecting part (220) is movably connected with the transmission assembly (120).

4. The brake of claim 3, wherein One of the transmission assembly (120) and the first connecting part (220) is provided with a rotating connecting head (1221), and the other is provided with a rotating connecting port (221), and the rotating connecting head (1221) is in rotating connection in the rotating connecting port (221).

5. The brake of claim 2 wherein, One end side of the second connecting part (230) away from the first connecting part (220) is a circular arc surface (231), the circular arc surface (231) is protruded towards the brake piece (300), and the circular arc surface (231) is in movable cooperation with the brake piece (300).

6. The brake of claim 5 wherein, The center of the circular arc surface (231) is arranged apart from the rotating center of the force amplification lever (200).

7. The brake of claim 2 wherein, The second connecting part (230) extends along the length direction of the brake piece (300).

8. The brake of claim 2 wherein, The radial dimension of at least part of the first connecting part (220) gradually increases in the direction towards the second connecting part (230).

9. The brake of claim 8, wherein, The first connecting part (220) comprises a first part (222) and a second part (223), the second part (223) is connected between the first part (222) and the second connecting part (230), and the radial dimension of the second part (223) gradually increases in the direction towards the second connecting part (230).

10. The brake of claim 2 wherein, The first connecting part (220) and the second connecting part (230) are connected through a circular arc segment (240).

11. The brake of claim 1, wherein The locking assembly (130) is arranged at one axial end of the rotating part (121).

12. The brake of claim 1, wherein, The rotating part (121) is hollow, at least part of the push rod (1321) is arranged in the rotating part (121), and the first locking part (1322) is arranged between the push rod (1321) and the rotating part (121). The push rod (1321) extends along the axial direction of the rotating part (121), so that at least part of the push rod (1321) is located between the driving part (131) and the first locking part (1322), and in the direction from the driving part (131) to the first locking part (1322), at least part of the outer peripheral wall of the push rod (1321) extends in the direction away from the rotating part (121).

13. The brake of claim 12, wherein, The push rod (1321) comprises a pushing segment (13212), and the pushing segment (13212) is used for pushing the first locking part (1322) to move towards the first locking cooperation part (1211). The pushing section (13212) is conical, and the radial dimension of the pushing section (13212) gradually decreases in the direction from the driving member (131) to the first locking member (1322).

14. The brake of claim 13, wherein, The pushing rod (1321) comprises a connecting section (13211) connected to the driving member (131), and the pushing section (13212) is connected to one end of the connecting section (13211) away from the driving member (131).

15. The brake of claim 1, wherein, The execution member (132) further comprises a reset member (1323) for pushing the first locking member (1322) to move away from the first locking cooperating member (1211) so as to switch the execution member (132) to the second position.

16. The brake of claim 1, wherein, The first locking member (1322) is a pawl, and the first locking cooperating member (1211) is a ratchet wheel, and in the first position, the pawl is in abutting cooperation with the ratchet wheel.

17. The brake of claim 12 wherein, The first locking member (1322) comprises a plurality of first locking members (1322) which are arranged at intervals around the outer periphery of the pushing rod (1321).

18. The brake of claim 12 wherein, The locking assembly (130) further comprises a guide member (133), at least part of the guide member (133) is arranged between the rotating member (121) and the pushing rod (1321), the first locking member (1322) is arranged through the guide member (133), and the guide member (133) is used for limiting the moving direction of the first locking member (1322).

19. The brake of claim 1, wherein, The driving member (131) comprises an electromagnetic module (1311) which can be energized, and the electromagnetic module (1311) is in magnetic attraction cooperation with the pushing rod (1321). The driving member (131) is configured to control the current direction of the electromagnetic module (1311) to push the pushing rod (1321) to reciprocatingly move.

20. The brake of claim 19, wherein, A permanent magnet is arranged on the electromagnetic module (1311), and the permanent magnet is used for controlling the electromagnetic module (1311) to keep magnetic attraction cooperation with the pushing rod (1321) after the electromagnetic module (1311) is powered off.

21. The brake of claim 1, wherein, The locking assembly (130) is arranged around the outer periphery of the rotating member (121).

22. The brake of claim 1, wherein, The motor (111) comprises a stator (1111) and a rotor (1112), the stator (1111) is arranged around the outer periphery of the rotor (1112), and the rotor (1112) is arranged around the outer periphery of the transmission assembly (120). The execution mechanism (100) further comprises a detection assembly (140) for detecting the position of the rotor (1112).

23. The brake of claim 22, wherein, The detection assembly (140) comprises a sensor and a magnetic ring (142) arranged on the rotating member (121), and the sensor is used for detecting the rotation angle of the magnetic ring (142).

24. The brake of any one of claims 1-23, wherein, The moving member (122) is in rotatable cooperation with the rotating member (121).

25. The brake of claim 24, wherein, The actuating mechanism (100) further comprises a rotation limiting member (150) cooperating with the moving member (122), the rotation limiting member (150) being configured to limit rotation of the moving member (122) along its circumference.

26. A brake system characterized by, A brake comprising the brake according to any one of claims 1-25.

27. A vehicle characterized by A brake system comprising the brake system according to claim 26.

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