Brake, braking system and vehicle

Abstract

The invention discloses a brake, a braking system and a vehicle, the brake comprises an actuating mechanism and a reinforcement lever, the actuating mechanism comprises a power assembly and a transmission assembly, the power assembly is in transmission connection with the transmission assembly, the reinforcement lever is connected between the transmission assembly and a brake pad, and the reinforcement lever is in transmission connection with the transmission assembly. Therefore, the reinforcement lever can drive the brake pad to move. According to the brake provided by the embodiment of the invention, the reinforcement lever is arranged and is used for driving the brake pad to move, so that the brake can output larger braking force while the structure of the brake is simplified, and the working performance of the brake is ensured to a certain extent.

Description

Technical Field

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

[0002] A brake is a device that has the function of slowing down, stopping or keeping a moving part stopped, also known as a brake.

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

[0004] However, the coordination of the planetary reduction mechanism and the ball screw mechanism will lead to a complex structure of the brake and cause the axial dimension of the brake to be stretched and lengthened, resulting in the brake occupying a large amount of wheel side space, which is not conducive to the arrangement of the brake and other environmental parts. Summary of the invention

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

[0006] A second objective of the present invention is to provide a brake system having the above brake.

[0007] A third objective of the present invention is to provide a vehicle having the above braking system.

[0008] The brake according to an embodiment of the present invention includes: an actuator, which includes a power component and a transmission component, and the power component and the transmission component are in transmission connection; a booster lever, which is connected between the transmission component and the brake pad, and the booster lever is in transmission connection with the transmission component so that the booster lever can drive the brake pad to move.

[0009] According to the brake of the embodiment of the present invention, a booster lever is provided, and the booster lever is provided to be connected between the transmission assembly and the brake pad, and the booster lever is connected to the transmission assembly in a transmission manner, so as to use the booster lever to amplify the driving force of the transmission assembly, so that the brake can output a greater braking force at a relatively low cost requirement, and the structure of the brake is simplified to match the demand for large braking force of commercial vehicles. In other words, the brake of the present application is not only simple in structure, but also can output a greater braking force.

[0010] In some embodiments, the booster lever includes a first connection portion and a second connection portion connected to each other, an end of the first connection portion facing away from the second connection portion is connected to the transmission assembly, and an end of the second connection portion facing away from the first connection portion is transmission-connected to the brake pad.

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

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

[0013] In some embodiments, the side surface of one end of the second connection portion facing away from the first connection portion is an arc surface, the arc surface protrudes toward the brake pad, and the arc surface is movably matched with the brake pad.

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

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

[0016] In some embodiments, a radial dimension of at least a portion of the first connection portion gradually increases in a direction approaching the second connection portion.

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

[0018] In some embodiments, the first connection portion and the second connection portion are connected by an arc segment.

[0019] In some embodiments, the power assembly includes a motor, the transmission assembly includes 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 reciprocating movement of the moving member, and the moving member is connected to the force-enhancing lever.

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

[0021] In some embodiments, the locking assembly is disposed 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 includes a driving member and an actuator, wherein the driving member is used to drive the actuator to reciprocate so that the actuator has a first position for limiting the rotation of the rotating member and a second position for unlocking the rotating member.

[0023] In some embodiments, the actuator includes a push rod and a first locking member, the push rod is connected to the driving member, and a first locking fitting is provided on the rotating member. The driving member is used to drive the push rod to move to push the first locking member to move toward the first locking fitting, the first locking member is limitedly matched with the first locking fitting, and the actuator switches to the first position.

[0024] In some embodiments, the interior of the rotating member is hollow, at least part of the push rod is disposed inside the rotating member, and the first locking member is disposed 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, at least part of the outer peripheral wall of the push rod extends obliquely in a direction away from the rotating member.

[0025] In some embodiments, the push rod includes a pushing section, which is used to push the first locking member toward the first locking fitting; the pushing section is formed into a cone, and the radial size of the pushing section gradually decreases in the direction from the driving member to the first locking member.

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

[0027] In some embodiments, the actuator further includes a reset member, and the reset member is used to push the first locking member to move in a direction away from the first locking matching member so that the actuator switches to the second position.

[0028] In some embodiments, the first locking member is a pawl, and the first locking mating member is a ratchet. In the first position, the pawl is in abutment with the ratchet.

[0029] In some embodiments, the first locking member includes a plurality of first locking members, and the plurality of first locking members are spaced apart and arranged around the outer circumference of the push rod.

[0030] In some embodiments, the locking assembly further includes a guide member, at least a portion of which is disposed between the rotating member and the push rod, the first locking member passes through the guide member, and the guide member is used to limit the moving direction of the first locking member.

[0031] In some embodiments, the driving member includes an energized electromagnetic module, which is magnetically coupled to the push rod; the driving member is configured to drive the push rod to reciprocate by controlling the current direction of the electromagnetic module.

[0032] In some embodiments, a permanent magnet is disposed on the electromagnetic module, and the permanent magnet is used to control the electromagnetic module and the push rod to maintain magnetic attraction after the electromagnetic module is powered off.

[0033] In some embodiments, the driving member includes a coil that can be energized, and the actuator includes a second locking member and a second locking mating member, the second locking mating member is connected to the rotating member, and the coil and the second locking member are magnetically coupled to control the second locking member to lock or release the second locking mating member.

[0034] In some embodiments, the second locking member includes a first mating member and a second mating member, at least a portion of the second locking mating member is arranged between the first mating member and the second mating member, and the coil is magnetically engaged with the first mating member and / or the second mating member to control the movement of the first mating member and / or the second mating member relative to the second locking mating member.

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

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

[0037] In some embodiments, the motor includes a stator and a rotor, wherein the stator is sleeved on the outer circumference of the rotor, and the rotor is arranged on the outer circumference of the transmission assembly; the actuator also includes a detection assembly, and the detection assembly is used to detect the position of the rotor.

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

[0039] In some embodiments, the moving member and the rotating member are rotatably matched.

[0040] In some embodiments, the actuator further includes a stopper, which cooperates with the moving part and is used to limit the moving part from rotating along its circumferential direction.

[0041] A braking system according to an embodiment of the present invention includes the aforementioned brake.

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

[0043] A vehicle according to an embodiment of the present invention includes the aforementioned braking system.

[0044] The vehicle according to the embodiment of the present invention adopts the aforementioned braking system to realize the aforementioned brake, which is beneficial to improving the performance of the vehicle.

[0045] Additional aspects and advantages of the invention will become apparent from the following description, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0047] Figure 1 sectional views of brakes according to some embodiments of the first aspect of the present invention.

[0048] Figure 2 sectional views of the actuators of some embodiments of the first aspect of the present invention.

[0049] Figure 3 It is a schematic diagram between the locking assembly and the housing in some embodiments of the first aspect of the present invention.

[0050] Figure 4 Schematic diagram of the locking assembly and the rotating member in some embodiments of the first aspect of the present invention

[0051] Figure 5 It is a schematic diagram of another angle between the locking assembly and the housing of some embodiments of the first aspect of the present invention.

[0052] Figure 6 sectional views of brakes according to some embodiments of the second aspect of the present invention.

[0053] Figure 7 sectional views of the actuators of some embodiments of the second aspect of the present invention.

[0054] Figure 8 It is a schematic diagram between the locking assembly and the rotating member of some embodiments of the second aspect of the present invention.

[0055] Fig. 9 Schematic diagram of a booster lever according to some embodiments of the present invention.

[0056] Fig.10 1 is a top view of a booster lever according to some embodiments of the present invention.

[0057] Fig.11 1 is a bottom view of a booster lever according to some embodiments of the present invention.

[0058] Fig.12 sectional views of booster levers according to some embodiments of the present invention.

[0059] Reference numerals:

[0060] 1000, brake; 100, actuator; 110, power assembly; 111, motor; 1111, stator; 1112, rotor; 120, transmission assembly; 121, rotating member; 1211, first locking fitting member; 122, moving member; 1221, rotating connector; 1222, first moving member; 1223, second moving member; 1224, adapter; 1225, rotating chamber; 1226, elastic member; 130, locking assembly; 131, driving member; 1311, electromagnetic module; 1312, coil; 132, actuator; 1321, push rod; 13211, connecting section; 13212, pushing section; 1322, first locking member; 1323, reset member; 1324, first fitting member; 13 25. Second locking fitting; 1326. Second fitting; 133. Guide; 140. Detection assembly; 141. Magnetic ring sleeve; 142. Magnetic ring; 150. Anti-rotation member; 160. Housing; 161. First housing; 1611. Wire outlet; 162. Second housing; 163. Sealing ring; 180. PCB board; 200. Power lever; 220. First connecting part; 221. Rotating connecting port; 222. First part; 223. Second part; 230. Second connecting part; 231. Circular arc surface; 240. Circular arc segment; 300. Brake pad; 400. Push plate; A. Contact point between the first connecting part and the transmission assembly; B. Center of the circular arc surface; C. Rotation center of the power lever; D. Contact point between the circular arc surface and the push plate. DETAILED DESCRIPTION

[0061] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0063] The brake 1000 according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0064] like Figure 1 and Figure 6 As shown, the brake 1000 according to the embodiment of the present invention includes: an actuator 100 and a force-enhancing lever 200 .

[0065] Among them, Figure 1 and Figure 6 As shown, the actuator 100 includes a power assembly 110 and a transmission assembly 120, and the power assembly 110 and the transmission assembly 120 are in transmission connection, so that the transmission assembly 120 can move under the drive of the power assembly 110, so as 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 a braking force to achieve the purpose of driving braking.

[0067] In some embodiments, the power assembly 110 is used to drive the transmission assembly 120 to move back and forth, so as to achieve the purpose of using the actuator 100 to achieve vehicle braking.

[0068] like Figure 1 and Figure 6As shown, the booster lever 200 is connected between the transmission assembly 120 and the brake pad 300, and the booster lever 200 is in transmission connection with the transmission assembly 120, so that the booster lever 200 can drive the brake pad 300 to move. Here, it means that the booster lever 200 is connected between the transmission assembly 120 and the brake pad 300, so that the booster lever 200 can drive the brake pad 300 to move. In this way, while the transmission assembly 120 is used to drive the brake pad 300 to move, the booster lever 200 can also be used to amplify the driving force of the transmission assembly 120, so that the brake 1000 can output a greater braking force at a relatively low cost requirement to match the demand for large braking force of commercial vehicles, and to a certain extent, ensure the working performance of the brake 1000.

[0069] At the same time, by setting the booster lever 200, the deceleration mechanism can be omitted, thereby simplifying the structure of the brake 1000, reducing the manufacturing difficulty and manufacturing cost of the brake 1000, and reducing the space occupied by the brake 1000, especially reducing the axial space of the brake 1000, and to a certain extent avoiding the brake 1000 from occupying too much wheel side space, which is beneficial to the arrangement of the brake 1000 and other environmental parts, and reduces the difficulty of arranging the brake 1000.

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

[0071] It can be seen from the above structure that the brake 1000 of the embodiment of the present invention can increase the braking force of the brake 1000 by setting a booster lever 200, and can omit the setting of a deceleration structure, thereby simplifying the structure of the brake 1000, reducing the manufacturing cost of the brake 1000, and reducing the space occupied by the brake 1000, so that the brake 1000 can not only output a larger braking force, but also has a simple structure and a small axial size, thereby reducing the layout of the brake 1000 and other environmental parts.

[0072] It can be understood that, compared with the prior art, the brake 1000 of the present application, by providing a booster lever 200, can simplify the structure of the brake 1000 itself while enabling the brake 1000 to output a larger braking force, thereby ensuring the working performance of the brake 1000 to a certain extent.

[0073] In some embodiments, Figure 1 and Figure 6 As shown, the brake 1000 also includes a push plate 400. During the braking process of the brake 1000, the transmission assembly 120 outputs a driving force, which is amplified by the booster lever 200 and reaches the push plate 400. The push plate 400 then pushes the brake pad 300 to complete the braking action.

[0074] In some embodiments, in combination Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the booster lever 200 includes a first connection portion 220 and a second connection portion 230 connected to each other, one end of the first connection portion 220 away from the second connection portion 230 is connected to the transmission assembly 120, and one end of the second connection portion 230 away from the first connection portion 220 is transmission-connected to the brake pad 300. That is, the first connection portion 220 is connected to the transmission assembly 120, and the second connection portion 230 is transmission-connected to the brake pad 300, so as to realize the connection between the booster lever 200 and the transmission assembly 120 and the brake pad 300, reduce the difficulty of the matching connection between the booster lever 200 and the transmission assembly 120 and the brake pad 300, so as to use the booster lever 200 to amplify the driving force of the transmission assembly 120, so that the brake 1000 can output a greater braking force at a relatively low cost requirement.

[0075] In a specific example, the end of the second connecting part 230 facing away from the first connecting part 220 is transmission-connected to the push plate 400, so that when the transmission assembly 120 outputs a driving force, the driving force can be amplified by the force-enhancing lever 200 and reach the push plate 400, and then the push plate 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 booster lever 200 is movably connected to the transmission assembly 120, so that when the transmission assembly 120 drives the booster lever 200 to move, the booster lever 200 can move relative to the transmission assembly 120, so that the booster lever 200 can be used to push the brake pad 300 to move, thereby achieving the purpose of using the booster lever 200 to increase the driving force of the transmission assembly 120.

[0077] In some embodiments, one end of the first connection portion 220 facing away from the second connection portion 230 is rotatably connected to the transmission assembly 120 to achieve a movable connection between the first connection portion 220 and the transmission assembly 120 .

[0078] In some embodiments, in combination Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, one of the transmission assembly 120 and the first connection part 220 is provided with a rotating connection head 1221 , and the other is provided with a rotating connection port 221 , and the rotating connection head 1221 is rotatably connected in the rotating connection port 221 . What is meant here is that when a rotating connecting head 1221 is provided on the transmission assembly 120, a rotating connecting port 221 is provided on the first connecting part 220; when a rotating connecting head 1221 is provided on the first connecting part 220, a rotating connecting port 221 is provided on the transmission assembly 120, and the rotating connecting head 1221 is rotatably connected in the rotating connecting port 221 to realize the rotational 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 rotational connection between the first connecting part 220 and the transmission assembly 120, so that when the transmission assembly 120 drives the booster lever 200 to move, the booster 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 booster lever 200.

[0079] In a specific example, combined with 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 portion 220 is provided with a rotating connection port 221 (the specific structure of the rotating connection port 221 can be seen in Fig.10 and Fig.12 ), the rotating connecting head 1221 is rotatably connected in the rotating connecting port 221 to realize the movable connection between the first connecting portion 220 and the transmission assembly 120.

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

[0081] In some embodiments, Figure 1 , Figure 6 , Fig. 9 and Fig.12As shown, the side surface of one end of the second connection part 230 away from the first connection part 220 is a circular arc surface 231, and the circular arc surface 231 protrudes toward the brake pad 300, and the circular arc surface 231 is movably matched with the brake pad 300. In other words, the side surface of the second connection part 230 facing the brake pad 300 is a circular arc surface 231 and the circular arc surface 231 protrudes toward the brake pad 300, so that the second connection part 230 is formed into a cam-like structure, so that when the transmission assembly 120 drives the booster lever 200 to move, the booster lever 200 can effectively drive the brake pad 300 to move, so as to achieve the purpose of using the transmission assembly 120 to drive the brake pad 300 to move, and facilitate the braking action, and at the same time, the purpose of using the booster lever 200 to amplify the driving force of the transmission assembly 120 can also be achieved.

[0082] It should be noted that when the brake 1000 includes a push plate 400, the side surface of one end of the second connecting portion 230 facing the push plate 400 is an arc surface 231, the arc surface 231 protrudes toward the push plate 400, and the arc surface 231 and the push plate 400 are movably matched, so that the push plate 400 can be pushed to move by using the booster lever 200, and then the push plate 400 pushes the brake pad 300 to complete the braking action.

[0083] In some embodiments, the center of the arc surface 231 is spaced from the rotation center of the booster lever 200. The center of the arc surface 231 mentioned here can be understood as Fig. 9 The rotation center of the booster lever 200 shown in FIG. 2 can be understood as Fig. 9 As shown in C, when the booster lever 200 rotates and drives the second connecting portion 230 to rotate synchronously, the arc surface 231 can generate different contact points with the push plate 400 during rotation (the contact points between the arc surface 231 and the push plate 400 can be understood as Fig. 9 D) and the contact track shown in , thereby pushing the push plate 400 to move, so as to achieve the purpose of pushing the brake pad 300 to move.

[0084] In some embodiments, in combination Figure 1 , Figure 6 , Fig.10 and Fig.11 As shown, the second connection portion 230 extends along the length direction of the brake pad 300. This is conducive to increasing the area of ​​the second connection portion 230, thereby ensuring that the force-bearing surface of the push plate 400 is larger to a certain extent, ensuring that the booster lever 200 can effectively push the push plate 400 to move when rotating, and at the same time, making the wear more uniform, extending the service life of the booster lever 200 and the push plate 400, and reducing the use cost.

[0085] In some embodiments, in combination Figure 1 , Figure 6 , Fig. 9 and Fig.12 As shown, the radial dimension of at least part of the first connection part 220 gradually increases in the direction toward the second connection part 230. So that the radial dimension of the first connection part 220 close to the second connection part 230 is greater than the radial dimension of the first connection part 220 far from the second connection part 230, so that while reducing the production cost of the first connection part 220, it is also beneficial to increase the contact area between the first connection part 220 and the second connection part 230, improve the connection strength between the first connection part 220 and the second connection part 230, and then improve the structural strength of the booster lever 200. While ensuring the working performance of the booster lever 200, it can also extend the service life of the booster lever 200 and reduce the use cost of the booster lever 200.

[0086] In some embodiments, in combination Fig. 9 and Fig.12 As shown, the first connection part 220 includes a first portion 222 and a second portion 223, the second portion 223 is connected between the first portion 222 and the second connection part 230, and the radial dimension of the second portion 223 gradually increases in the direction approaching the second connection part 230. Thus, the radial dimension of at least part of the first connection part 220 is set to gradually increase in the direction approaching the second connection part 230, which reduces the difficulty of forming the first connection part 220, and because the second portion 223 is connected to the second connection part 230, the contact area between the second portion 223 and the second connection part 230 is increased, thereby increasing the connection strength between the first connection part 220 and the second connection part 230, and improving the structural strength of the booster lever 200.

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

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

[0089] In some embodiments, the booster lever 200 is made by an integrated molding process. That is, the first connection portion 220 and the second connection portion 230 are formed as an integral piece, which can increase the connection strength between the first connection portion 220 and the second connection portion 230, thereby improving the structural strength of the booster lever 200 and ensuring the working performance of the booster lever 200 to a certain extent. On the other hand, the connection between the first connection portion 220 and the second connection portion 230 can be omitted, thereby reducing the manufacturing difficulty of the booster lever 200 and improving the manufacturing efficiency.

[0090] Of course, in some other embodiments, the first connection part 220 and the second connection part 230 can also be formed as separate parts. After the first connection part 220 and the second connection part 230 are separately processed and formed, the first connection part 220 and the second connection part 230 are connected by welding, bonding, etc., so that the booster lever 200 can also be formed.

[0091] In some embodiments, Fig.11 As shown, the first connection part 220 and the second connection part 230 are connected by the arc segment 240. It can also be understood here that the arc segment 240 is connected between the first connection part 220 and the second connection part 230, which can avoid stress concentration between the first connection part 220 and the second connection part 230 to a certain extent, thereby avoiding the force boosting lever 200 from breaking at the connection between the first connection part 220 and the second connection part 230 to a certain extent, and extending the service life of the force boosting lever 200.

[0092] At the same time, when the booster lever 200 is manufactured by an integrated molding process, the arc segment 240 can also reduce the difficulty of molding the booster lever 200 .

[0093] The working principle of the booster lever 200 of the present application will be described in detail below with reference to the accompanying drawings of the specification.

[0094] in, Fig. 9 Point A shown in the figure is the contact point between the booster lever 200 and the transmission assembly 120, point B is the center of the arc surface 231 of the booster lever 200, point C is the rotation center point of the booster lever 200, point D is the contact point between the arc surface 231 of the booster lever 200 and the push plate 400, AB is the input lever arm, CD is the output lever arm, the booster lever 200 rotates around point C during operation, and the length of the lever arm AB does not change during the movement. However, since point B, the center of the arc surface 231, and point C, the rotation center of the booster lever 200, are spaced apart, the length of the lever arm CD will change during the movement, so as to facilitate the use of the booster lever 200 to push the push plate 400 to move.

[0095] It should be noted that, after the booster lever 200 is designed, AB, BD and CB are fixed values, and according to the cosine theorem, it can be obtained that: CD2 =CB 2 +BD 2 -2*CB*BD*cos∠CBD, wherein, when ∠CBD=90°, the output lever arm CD is the largest. According to the lever principle, the lever amplification ratio AB / CD is the smallest at this time. Therefore, when designing the booster lever 200, if when ∠CBD=90°, the minimum amplification ratio of the booster lever 200 can meet the amplification requirement, it means that the booster lever 200 meets the amplification requirement at this time, that is, the booster lever 200 can achieve the requirement of amplifying the braking force.

[0096] In some embodiments, the booster lever 200 is equipped with a gap compensation mechanism and a return mechanism (not shown in the figure). The gap compensation mechanism can compensate for braking, and the return mechanism can ensure that the booster lever 200 can return to the origin after each push, so as to ensure the working performance of the booster lever 200 to a certain extent.

[0097] In some embodiments, Figure 2 and Figure 7 As shown, the power assembly 110 includes a motor 111, and the transmission assembly 120 includes a rotating member 121 and a moving member 122 connected to the rotating member 121. The motor 111 is used to drive the rotating member 121 to rotate to control the moving member 122 to move back and forth, and the moving member 122 is connected to the booster lever 200. Here, it means that by connecting the moving member 122 to the rotating member 121, when the motor 111 drives the rotating member 121 to rotate, the moving member 122 can be controlled to move back and forth, so that the transmission assembly 120 can output a driving force.

[0098] At the same time, by connecting the moving part 122 to the booster lever 200, one end of the booster lever 200 can be connected to the transmission assembly 120. While reducing the difficulty of connecting the booster lever 200 and the transmission assembly 120, it can also ensure that when the transmission assembly 120 outputs a driving force, it can drive the booster lever 200 to move, so as to utilize the booster lever 200 to amplify the driving force of the transmission assembly 120, so that the brake 1000 can output a greater braking force, thereby ensuring the working performance of the brake 1000 to a certain extent.

[0099] In a specific example, when the motor 111 drives the rotating member 121 to rotate in the forward direction, the rotating member 121 rotates and drives the moving member 122 to move. At this time, the moving member 122 can be pushed out axially. When the moving member 122 is pushed out axially, it drives the booster lever 200 to rotate, so as to amplify the driving force through the booster lever 200 to complete the braking action; when the motor 111 reverses, it controls the moving member 122 to reset.

[0100] It should be noted that when the transmission assembly 120 includes a moving part 122, the rotating connecting head 1221 is provided on the moving part 122, and the first connecting part 220 is rotatably coordinated with the moving part 122 through the rotating connecting head 1221 to realize the rotational connection between the booster lever 200 and the transmission assembly 120, thereby ensuring that when the transmission assembly 120 outputs a driving force, it can drive the booster lever 200 to move, so as to realize the use of the booster lever 200 to amplify the driving force of the transmission assembly 120.

[0101] In some embodiments, the rotating member 121 is a screw sleeve, and the movable member 122 is a screw. The screw sleeve is mounted on the screw so that the transmission assembly 120 forms a ball screw mechanism, so that when the motor 111 drives the rotating member 121 to rotate, the movable member 122 can be effectively controlled to move back and forth, so as to realize the output of driving force by utilizing the transmission assembly 120.

[0102] Of course, in some other embodiments, the transmission assembly 120 may also be formed as a rack and pinion mechanism.

[0103] In some embodiments, Figure 2 and Figure 7 As shown, the motor 111 includes 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 configured to include the stator 1111 and the rotor 1112, and the stator 1111 is sleeved on the outer periphery of the rotor 1112, so as to facilitate the coupling and cooperation between the stator 1111 and the rotor 1112, so as to facilitate the use of the motor 111 to drive the rotating member 121 to rotate so as to control the reciprocating movement of the moving member 122, thereby reducing the control difficulty of the moving member 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 makes it convenient to use the rotor 1112 to drive the rotating member 121 to rotate. On the other hand, it can also make full use of the radial internal space of the rotor 1112, which is beneficial to reducing the axial dimension of the brake 1000 and reducing the difficulty of arranging 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 to the rotating member 121 of the transmission assembly 120. During the coupling process of the stator 1111 and the rotor 1112, the rotor 1112 rotates relative to the stator 1111, and the rotor 1112 rotates and drives the rotating member 121 to rotate, thereby achieving the purpose of using the motor 111 to drive the rotating member 121 to rotate to control the reciprocating movement of the moving member 122.

[0106] In some embodiments, Figure 2 and Figure 7As shown, the stator 1111 is fixed to the second housing 162 by interference fitting, so that the second housing 162 is used to support the stator 1111, 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, Figure 1 and Figure 6 As shown, the actuator 100 further includes a locking assembly 130, which is used to lock the transmission assembly 120 to limit at least a portion of the movement 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 at least a portion of the movement of the transmission assembly 120, so that at least a portion of the transmission assembly 120 can be locked during the braking process, thereby achieving parking braking.

[0108] In some embodiments, the locking assembly 130 is also used 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 used to limit at least part of the movement 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 meet the requirements of service braking and parking braking, that is, the brake 1000 is formed as an integrated mechanism of service braking and parking braking.

[0110] In some embodiments, Figure 2 and Figure 7 As shown, the actuator 100 includes a housing 160, and the power assembly 110, at least part of the transmission assembly 120 and the locking assembly 130 are all arranged in the housing 160. While realizing the integration of the actuator 100, the housing 160 can also be used to support and ensure the power assembly 110, the transmission assembly 120 and the locking assembly 130. While improving the position stability of the power assembly 110, the transmission assembly 120 and the locking assembly 130, the service life of the power assembly 110, the transmission assembly 120 and the locking assembly 130 can also be extended.

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

[0112] In some embodiments, Figure 7 As shown, a sealing ring 163 is provided at the connection between the first shell 161 and the second shell 162. The sealing ring 163 is used to achieve sealing cooperation between the first shell 161 and the second shell 162 to play a role of sealing and waterproofing, thereby preventing water from entering the outer shell 160, ensuring the safety of the power component 110, the transmission component 120 and the locking component 130, and extending the service life.

[0113] The sealing ring 163 mentioned here can be understood as an O-ring.

[0114] In the description of the present invention, features defined as “first” or “second” may explicitly or implicitly include one or more such features, and are used to distinguish and describe the features, without any distinction in order or importance.

[0115] In some embodiments, Figure 2 and Figure 7 As shown, the locking assembly 130 is disposed at one axial end of the rotating member 121, and the locking assembly 130 is used to lock the rotating member 121 to limit the rotation of the rotating member 121. In other words, the locking assembly 130 is used to lock the transmission assembly 120 to limit the movement of the rotating member 121 of the transmission assembly 120. Since the rotating member 121 can drive the moving member 122 to move back and forth when rotating, the purpose of limiting the movement of the moving member 122 can be achieved by limiting the rotation of the rotating member 121, thereby achieving 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 the braking process, thereby achieving parking braking.

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

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

[0118] Specifically, the brake 1000 includes an actuator 100, a booster lever 200, a push plate 400 and a brake pad 300. The actuator 100 mainly includes a power assembly 110, a transmission assembly 120 and a locking assembly 130. The motor 111 of the power assembly 110 converts the rotational motion into a horizontal motion form through the transmission assembly 120, and then proportionally amplifies the driving force of the transmission assembly 120 through the booster lever 200, thereby achieving a high-thrust service braking effect to meet the high-thrust braking requirements of commercial vehicles.

[0119] At the same time, the locking assembly 130 can lock the rotating part 121 of the transmission assembly 120 during operation so that the brake 1000 can achieve the effect of parking brake, so that the brake 1000 of the present application forms an integrated driving and parking brake mechanism.

[0120] In some embodiments, Figure 2 As shown, the locking assembly 130 includes a driving member 131 and an actuator 132. The driving member 131 is used to drive the actuator 132 to move back and forth, so that the actuator 132 has a first position for limiting the rotation of the rotating member 121 and a second position for unlocking the rotating member 121. When the actuator 132 limits the rotation of the rotating member 121, the purpose of locking the transmission assembly 120 can be achieved, so that the transmission assembly 120 can be locked during the braking process, and the parking brake is realized at this time; when the actuator 132 unlocks the rotating member 121, the rotating member 121 can be effectively rotated under the drive of the motor 111, so that the transmission assembly 120 can output a driving force, ensure the working performance of the brake 1000, and enable the brake 1000 to start the service brake.

[0121] In some embodiments, Figure 2 As shown, the actuator 132 includes a push rod 1321 and a first locking member 1322. The push rod 1321 is connected to the driving member 131. The rotating member 121 is provided with a first locking fitting 1211 (the specific structure of the first locking fitting 1211 can be seen in Figure 4 ), the driving member 131 is used to drive the push rod 1321 to move so as to push the first locking member 1322 to move toward the first locking fitting member 1211, the first locking member 1322 is limitedly matched with the first locking fitting member 1211, and the actuator 132 is switched to the first position. Here, it means 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 in the direction close to the first locking fitting member 1211, so as to realize the limited matching of the first locking member 1322 and the first locking fitting member 1211. When the first locking member 1322 is limitedly matched with the first locking fitting member 1211, the actuator 132 is switched to the first position, so as to realize the use of the actuator 132 to limit the rotation of the rotating member 121, so as to achieve the purpose of locking the transmission assembly 120, and to facilitate the parking brake.

[0122] In some embodiments, Figure 2 As shown, the interior of the rotating member 121 is hollow, at least part of the push rod 1321 is disposed in the rotating member 121, and the first locking member 1322 is disposed 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 toward the direction close to the first locking matching member 1211, thereby facilitating the limited matching of the first locking member 1322 and the first locking matching member 1211, thereby achieving the purpose of limiting the rotation of the rotating member 121.

[0123] At the same time, by arranging at least a part of the push rod 1321 in the rotating member 121, it is also possible to avoid, to a certain extent, the actuator 132 occupying the axial space of the rotating member 121, thereby reducing the axial dimension of the brake 1000.

[0124] Alternatively, if Figure 2 As shown, the push rod 1321 extends along 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 in the direction from the driving member 131 to the first locking member 1322, at least part of the outer peripheral wall of the push rod 1321 extends obliquely in the direction away from the rotating member 121. Here, it means that when the push rod 1321 is arranged to extend along 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. At this time, in the direction from the driving member 131 to the first locking member 1322, at least part of the outer peripheral wall of the push rod 1321 is arranged to extend obliquely in the direction away from the rotating member 121, so that when the driving member 131 drives the push rod 1321 to move, it can be ensured that the push rod 1321 can push the first locking member 1322 to move in the direction close to the first locking fitting 1211, thereby reducing the difficulty of pushing the push rod 1321.

[0125] In some embodiments, Figure 2 As shown, the push rod 1321 includes a pushing section 13212, and the pushing section 13212 is used to push the first locking member 1322 to move toward the first locking fitting 1211. In this way, the push rod 1321 is used to push the first locking member 1322 to move toward the direction close to the first locking fitting 1211, thereby reducing the difficulty of pushing the push rod 1321.

[0126] In some embodiments, 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. Therefore, in the direction from the driving member 131 to the first locking member 1322, the outer peripheral wall of the pushing section 13212 can be extended obliquely in the direction away from the rotating member 121, and then when the driving member 131 drives the push rod 1321 to move, the pushing section 13212 can effectively push the first locking member 1322 to move, so as to realize the limiting cooperation between the first locking member 1322 and the first locking matching member 1211.

[0127] In some embodiments, Figure 2 As shown, the pushing section 13212 is formed into a cone, and the bottom surface of the cone is arranged close to the driving member 131, so that in the direction from the driving member 131 to the first locking member 1322, the outer peripheral wall of the pushing section 1321 can be inclined and extended in the direction away from the rotating member 121, so as to facilitate the use of the push rod 1321 to push the first locking member 1322 to move, thereby reducing the difficulty of locking the rotating member 121 by the locking assembly 130.

[0128] In some embodiments, Figure 2 As shown, the push rod 1321 includes a connecting section 13211, the connecting section 13211 is connected to the driving member 131, and the pushing section 13212 is connected to the end of the connecting section 13211 away from the driving member 131. In other words, the push rod 1321 includes the connecting section 13211 and the pushing section 13212, and the connecting section 13211 is used to connect the driving member 131 and the pushing section 13212, so as to realize the connection between the pushing section 13212 and the driving member 131, reduce the connection strength between the pushing section 13212 and the driving member 131, facilitate the use of the driving member 131 to drive the pushing section 13212 to move, and further reduce the control difficulty of the push rod 1321.

[0129] In some embodiments, in combination Figure 2 , Figure 4 and Figure 5 As shown, the actuator 132 further includes a reset member 1323, which is used to push the first locking member 1322 to move away from the first locking fitting 1211 so that the actuator 132 switches to the second position. This unlocks the rotating member 121, so that the rotating member 121 can effectively rotate under the drive of the motor 111, thereby ensuring the working performance of the brake 1000, so that the brake 1000 can start to perform service braking.

[0130] That is to say, when the actuator 132 is needed to limit the rotation of the rotating member 121, the driving member 131 and the push rod 1321 are used to push the first locking member 1322 toward the first locking fitting member 1211, so that the actuator 132 switches to the first position; when the rotating member 121 needs to be unlocked, the reset member 1323 is used to push the first locking member 1322 in a direction away from the first locking fitting member 1211, so that the actuator 132 switches to the second position, thereby enabling the actuator 132 to switch between the first position and the second position, so that the locking assembly 130 can lock or unlock the transmission assembly 120.

[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 in a direction away from the first locking fitting 1211 so that the actuator 132 switches to the second position.

[0132] Specifically, when it is necessary to lock the rotating member 121, the driving member 131 drives the push rod 1321 to move in the direction close to the first locking member 1322, so as to push the first locking member 1322 to move toward the first locking matching member 1211, and the first locking member 1322 is limitedly matched with the first locking matching member 1211 to achieve the purpose of locking the rotating member 121; when it is necessary to unlock the rotating member 121, the driving member 131 drives the push rod 1321 to move in the direction close to the driving member 131, at this time, the force of the push rod 1321 to push the first locking member 1322 to move disappears, and when the push rod 1321 and the first locking member 1322 are spaced apart, the reset member 1323 is used to push the first locking member 1322 to move in the direction away from the first locking matching member 1211, and the first locking member 1322 is released from the limited matching with the first locking matching member 1211, thereby achieving the purpose of unlocking the rotating member 121.

[0133] In some embodiments, in combination Figure 2 , Figure 4 and Figure 5 As shown, the reset member 1323 is a reset spring, which is sleeved on the outer periphery of the first locking member 1322. One end of the reset spring is fixedly connected to the first locking member 1322, and the other end of the reset spring is fixedly connected to other structural members (such as the guide member 133 described below). When the push rod 1321 pushes the first locking member 1322 to move, the reset spring is in a compressed state to store force. In this way, when the force of the push rod 1321 pushing the first locking member 1322 to move disappears, the reset member 1323 can be used to push the first locking member 1322 to move in a direction away from the first locking mating member 1211 to unlock the rotating member 121, so that the rotating member 121 can effectively rotate under the drive of the motor 111, and then the brake 1000 can start to perform service braking.

[0134] In some embodiments, Figure 4 As shown, the first locking member 1322 is a pawl, and the first locking matching member 1211 is a ratchet. In the first position, the pawl and the ratchet are engaged with each other to achieve the limited engagement of the first locking member 1322 and the first locking matching member 1211, so that the actuator 132 is used to limit the rotation of the rotating member 121, thereby achieving the purpose of locking the transmission assembly 120 and realizing parking brake.

[0135] At the same time, by using the pawl and the ratchet to cooperate to limit the rotation of the rotating member 121, the structure of the locking assembly 130 can be effectively simplified, thereby reducing the difficulty of assembling and arranging the locking assembly 130.

[0136] Of course, in some other embodiments, the first locking member 1322 can also be formed as a locking rod, which extends in the direction of the first locking fitting 1211. The first locking fitting 1211 is formed as a locking hole or a locking groove, and the locking rod is limitedly fitted in the locking hole or the locking groove. In this way, the first locking member 1322 and the first locking fitting 1211 can also be limitedly fitted, thereby achieving the purpose of limiting the rotation of the rotating member 121.

[0137] In some embodiments, Figure 4 and Figure 5 As shown, the first locking member 1322 includes a plurality of first locking members 1322, which are arranged at intervals around the outer circumference of the push rod 1321. The cooperation of the plurality of first locking members 1322 can increase the limiting strength of the actuator 132, so that the actuator 132 can effectively limit the rotation of the rotating member 121, so that the transmission assembly 120 can be locked during the braking process to achieve parking braking.

[0138] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0139] In some embodiments, Figure 4 and Figure 5 As shown, when the first locking member 1322 is formed as a pawl, the ratchet is arranged on the inner peripheral wall of the rotating member 121 , and a plurality of pawls and ratchet cooperate to increase the limiting strength of the actuator 132 .

[0140] In addition, when the first locking member 1322 is formed as a locking rod, the locking holes or locking grooves are also formed in plurality, and the plurality of locking rods are matched with the plurality of locking holes or the plurality of locking grooves in a one-to-one correspondence, the limiting strength of the actuator 132 can also be increased.

[0141] In some embodiments, Figure 2 and Figure 5As shown, the locking assembly 130 further includes a guide member 133, at least part of which is disposed between the rotating member 121 and the push rod 1321, and the first locking member 1322 is disposed through the guide member 133, and the guide member 133 is used to limit the moving direction of the first locking member 1322. Thus, the first locking member 1322 can move along a predetermined direction, and the accuracy of the movement of the first locking member 1322 is ensured, so as to realize the limited position 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 by using the first locking member 1322.

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

[0143] In some embodiments, in combination Figure 2 and Figure 5 As shown, the guide member 133 is fastened and integratedly fixed on the first shell 161 by bolts, so that the first shell 161 is used to support the guide member 133, thereby improving the position stability of the guide member 133 and ensuring the working performance of the guide member 133.

[0144] In some embodiments, a guide opening is provided on the guide member 133, and the first locking member 1322 is passed through the guide opening so that the guide member 133 can be used to limit the moving direction of the first locking member 1322, thereby reducing the difficulty of matching the guide member 133 with the first locking member 1322.

[0145] In some embodiments, Figure 2 As shown, the driving member 131 includes an energized electromagnetic module 1311, and the electromagnetic module 1311 is magnetically matched with the push rod 1321. In this way, the driving member 131 drives the push rod 1321 to move, thereby reducing the difficulty of moving the push rod 1321 and thus reducing the difficulty of locking the locking assembly 130.

[0146] The electromagnetic module 1311 mentioned here can be understood as an electromagnet, and the electromagnet cooperates with the push rod 1321 through magnetic attraction to achieve driving the push rod 1321 to move.

[0147] In some embodiments, Figure 2 As shown, the actuator 100 includes a PCB board 180 (Printed Circuit Board), which is arranged in the housing 160 and electrically connected to the electromagnetic module 1311, so that the electromagnetic module 1311 can be powered by the PCB board 180, which facilitates the magnetic attraction and cooperation between the electromagnetic module 1311 and the push rod 1321, thereby ensuring the working performance of the electromagnetic module 1311 to a certain extent.

[0148] Alternatively, if Figure 2As shown, the electromagnetic module 1311 is integrated in the first shell 161, and a wire outlet hole 1611 is provided on the first shell 161. The connecting wire of the electromagnetic module 1311 is connected to the PCB board 180 through the wire outlet hole 1611, thereby realizing the electrical connection between the PCB board 180 and the electromagnetic module 1311 and reducing the difficulty of the electrical connection between the PCB board 180 and the electromagnetic module 1311.

[0149] At the same time, by integrating the electromagnetic module 1311 in the first shell 161, the first shell 161 can also be used to support the electromagnetic module 1311 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 bolt holes, and the electromagnetic module 1311 is fixed to the first housing 161 by bolts, so as to integrate the electromagnetic module 1311 into the first housing 161, thereby reducing the difficulty of integrating the electromagnetic module 1311 with the first housing 161. Figure 2 and Figure 3 .

[0151] In some embodiments, Figure 2 As shown, the PCB board 180 is sleeved on the outer periphery of the transmission assembly 120 to further reduce the axial dimension 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, the push rod 1321 can be pushed to reciprocate by controlling the current direction of the electromagnetic module 1311, so as to achieve the purpose of using the driving member 131 to drive the push rod 1321 to reciprocate, and reduce the driving difficulty of the push rod 1321 to reciprocate, so that the actuator 132 can effectively switch between the first position of restricting the rotation of the rotating member 121 and the second position of unlocking the rotating member 121.

[0153] In some embodiments, Figure 2 As shown, when the electromagnetic module 1311 is energized in the forward direction, it can drive the push rod 1321 to move toward the direction close to the first locking member 1322, so as to switch the actuator 132 to the first position for limiting the rotation of the rotating member 121; when the electromagnetic module 1311 is energized in the reverse direction, it can drive the push rod 1321 to move toward the direction close to the electromagnetic module 1311, so as to switch the actuator 132 to the second position for unlocking the rotating member 121.

[0154] In some embodiments, a permanent magnet is provided on the electromagnetic module 1311, and the permanent magnet is used to control the electromagnetic module 1311 and the push rod 1321 to maintain magnetic attraction after the electromagnetic module 1311 is powered off. In other words, by providing a permanent magnet on the electromagnetic module 1311, when the electromagnetic module 1311 is powered off, the electromagnetic module 1311 and the push rod 1321 can maintain magnetic attraction, so that when the push rod 1321 pushes the first locking member 1322 toward the first locking matching member 1211 so that the rotating member 121 is locked, the brake 1000 can maintain the parking state without continuous power supply. At this time, the electromagnetic module 1311 does not need to output the holding current, and the 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 electromagnetic module 1311 that pushes the push rod 1321 to move. When the push rod 1321 moves toward the direction close to the first locking member 1322, it pushes the pawl to lock the ratchet wheel, thereby achieving the purpose of locking the rotating member 121, thereby realizing the parking brake requirement.

[0156] At the same time, a permanent magnet is arranged on the electromagnetic module 1311 , so that when the electromagnetic module 1311 is in a power-off state, the push rod 1321 still has a holding force, and can maintain the locking rotating member 121 .

[0157] Through the above settings, in a specific example, Figure 2 As shown, when the electromagnetic module 1311 is pushed out after being energized in the positive direction, the push rod 1321 is driven to move in the direction close to the first locking member 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 in the direction close to the first locking member 1322, it can push the first locking member 1322 formed as a pawl to move along the guide member 133 towards the direction close to the rotating member 121. At this time, the compression reset member 1323 can also be realized. When the pawl is stuck with the first locking mating member 1211 formed as a ratchet on the rotating member 121, the rotating member 121 cannot rotate, achieving In order to limit the rotation of the rotating part 121, the brake 1000 realizes the parking function. At this time, the electromagnetic module 1311 can be powered off, and the permanent magnet inside the electromagnetic module 1311 can be used to provide a holding force to continue to maintain the pushed-out state of the push rod 1321; when the electromagnetic module 1311 is energized in the reverse direction, the electromagnetic module 1311 drives the push rod 1321 to move in the direction close to the electromagnetic module 1311. At this time, the pawl is pushed out along the guide direction of the guide part 133 by the elastic force of the reset part 1323, so that the pawl is separated from the ratchet on the rotating part 121. The parking brake is released at this time, and the rotating part 121 can rotate normally.

[0158] In some embodiments, Figure 7As shown, the driving member 131 includes a coil 1312 that can be energized, and the actuator 132 includes a second locking member and a second locking fitting member 1325, the second locking fitting member 1325 is connected to the rotating member 121, and the coil 1312 is magnetically engaged with the second locking member to control the second locking member to lock or release the second locking fitting member 1325. That is to say, the driving member 131 is not limited to being formed as the electromagnetic module 1311, and the actuator 132 is not limited to being formed as the push rod 1321 and the first locking member 1322. The driving member 131 is configured to include a coil 1312 that can be energized, and the actuator 132 is configured to include a second locking member and a second locking fitting member 1325. Since the second locking fitting member 1325 is connected to the rotating member 121, when the coil 1312 and the second locking member magnetically cooperate to lock the second locking fitting member 1325, the purpose of locking the rotating member 121 can be achieved, and the brake 1000 acts as a parking brake at this time; when the coil 1312 and the second locking member magnetically cooperate to release the second locking fitting member 1325, the purpose of releasing the rotating member 121 can be achieved, so that the rotating member 121 can rotate under the drive of the motor 111, so that the brake 1000 can start to perform service braking.

[0159] In some embodiments, Figure 7 As shown, the second locking member includes a first matching member 1324 and a second matching member 1326, at least part of the second locking matching member 1325 is disposed between the first matching member 1324 and the second matching member 1326, and the coil 1312 is magnetically matched with the first matching member 1324 and / or the second matching member 1326 to control the movement of the first matching member 1324 and / or the second matching member 1326 relative to the second locking matching member 1325. Here, it means that the coil 1312 is magnetically matched with the first matching member 1324; or, the coil 1312 is magnetically matched with the second matching member 1326; or, the coil 1312 is magnetically matched with the first matching member 1324 and the second matching member 1326.

[0160] Among them, when the coil 1312 is magnetically engaged with the first mating piece 1324, the coil 1312 is used to control the movement of the first mating piece 1324 relative to the second locking mating piece 1325; when the coil 1312 is magnetically engaged with the second mating piece 1326, the coil 1312 is used to control the movement of the second mating piece 1326 relative to the second locking mating piece 1325; when the coil 1312 is magnetically engaged with the first mating piece 1324 and the second mating piece 1326, the coil 1312 is used to control the movement of the first mating piece 1324 and the second mating piece 1326 relative to the second locking mating piece 1325, thereby facilitating the use of controlling the second locking piece to lock or release the second locking mating piece 1325.

[0161] In a specific example, when the first mating piece 1324 and / or the second mating piece 1326 moves toward the second locking mating piece 1325 and abuts against the second locking mating piece 1325, the first mating piece 1324 and the second mating piece 1326 cooperate to lock the second locking mating piece 1325, and when the first mating piece 1324 and / or the second mating piece 1326 moves in a direction away from the second locking mating piece 1325 and is spaced apart from the second locking mating piece 1325, the first mating piece 1324 and the second mating piece 1326 are used to release the second locking mating piece 1325.

[0162] In some embodiments, Figure 7 As shown, the first matching piece 1324 and the second matching piece 1326 are both formed as locking plates, and the second locking matching piece 1325 is formed as a locking matching plate, which is connected to the outer peripheral wall of the rotating member 121, and the two locking plates are arranged at intervals on the opposite sides of the locking matching plate. In other words, the first matching piece 1324 and the second matching piece 1326 are arranged at intervals on the opposite sides of the second locking matching piece 1325, so that the first matching piece 1324 and the second matching piece 1326 can be used to lock or release the second locking matching piece 1325, thereby reducing the difficulty of locking and releasing the second locking matching piece 1325, and at the same time, it can also reduce the difficulty of molding the first matching piece 1324, the second matching piece 1326 and the second locking matching piece 1325.

[0163] In some embodiments, an assembly groove is provided on the rotating member 121, and the second locking fitting 1325 is connected to the rotating member 121 through the assembly groove, so as to realize that the second locking fitting 1325 is set on the rotating member 121, and the assembly difficulty of the second locking fitting 1325 and the rotating member 121 is reduced, and the connection strength between the second locking fitting 1325 and the rotating member 121 is ensured, so as to facilitate 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 board 180, and the PCB board 180 is used to energize the coil 1312, so that the coil 1312 can be magnetically engaged with the first mating piece 1324 and / or the second mating piece 1326 to control the first mating piece 1324 and the second mating piece 1326 to lock or release the second locking mating piece 1325.

[0165] In some embodiments, Figure 7 As shown, the first mating piece 1324 is arranged on the side of the second locking mating piece 1325 facing the coil 1312, and the second mating piece 1326 is arranged on the side of the second locking mating piece 1325 facing away from the coil 1312, so as to realize that at least part of the second locking mating piece 1325 is arranged between the first mating piece 1324 and the second mating piece 1326.

[0166] Optionally, the first mating piece 1324 and the second locking mating piece 1325 can be movably matched, and the second mating piece 1326 is attached to one side of the second locking mating piece 1325 and fixedly arranged, and the coil 1312 and the first mating piece 1324 are magnetically matched to control the movement of the first mating piece 1324 relative to the second locking mating piece 1325, thereby controlling the first mating piece 1324 and the second mating piece 1326 to lock or release the second locking mating piece 1325.

[0167] In some embodiments, the coil 1312 is disposed in a coil ring, so that the coil 1312 is supported and protected by the coil ring, thereby ensuring the working performance of the coil 1312 to a certain extent.

[0168] In a specific example, when the coil 1312 is not energized, the first mating piece 1324 and the second mating piece 1326 tightly fit the second locking mating piece 1325 together through the compression spring. At this time, the second locking mating piece 1325 is restricted from rotating. Since the second locking mating piece 1325 is connected to the rotating piece 121, the rotating piece 121 is limited in rotation. At this time, the brake 1000 acts as a parking brake; when the coil 1312 is energized, the coil 1312 in the coil ring is magnetic. At this time, the coil 1312 forms a magnetic fit with the first mating piece 1324. The first mating piece 1324 can overcome the elastic force of the compression spring and fit tightly with the coil ring, thereby achieving the purpose of releasing the second locking mating piece 1325, so that the second locking mating piece 1325 can rotate with the rotating piece 121, and at this time, the brake 1000 can start service braking.

[0169] In some embodiments, in combination Figure 7 and Figure 8 As shown, the locking assembly 130 is sleeved on the outer periphery of the rotating member 121. While the locking assembly 130 can be arranged close to the rotating member 121, the space on the outer periphery of the rotating member 121 can be fully utilized, thereby reducing the axial size of the brake 1000, so that the brake 1000 can better adapt to the wheel edge environment.

[0170] In addition, by sleeve-arranging the locking assembly 130 on the outer periphery of the rotating member 121, the locking assembly 130 can also be formed into a shaft-holding braking scheme to limit the radial rotation of the rotating member 121. The shaft-holding scheme is more stable and reliable.

[0171] In some embodiments, Figure 7 and Figure 8 As shown, the locking assembly 130 is formed into an annular structure so that the locking assembly 130 can be sleeved on the outer periphery of the rotating member 121 .

[0172] Optionally, the first mating piece 1324 and the second mating piece 1326 are formed as a mating ring, and the second locking mating piece 1325 is formed as a stop ring, and both the mating ring and the stop ring are sleeved on the outer periphery of the rotating part 121 to achieve the locking assembly 130 being sleeved on the outer periphery of the rotating part 121 and reduce the difficulty of assembling the locking assembly 130 and the rotating part 121.

[0173] At the same time, the cooperation between the matching ring and the stop ring can also increase the contact area, thereby increasing the matching strength, so that the locking assembly 130 can effectively lock the rotating part 121.

[0174] Alternatively, if Figure 2 and Figure 7 As shown, the actuator 100 further includes a detection assembly 140, which is used to detect the position of the rotor 1112. On the one hand, it is convenient to control the current of the stator 1111 when parking to accurately control the rotation of the rotor 1112, 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 accurate by controlling the accurate position of the rotor 1112, so that when the locking assembly 130 locks the rotating member 121, it can avoid the first locking member 1322 from getting stuck when it cooperates with the first locking matching member 1211 to a certain extent, so that the first locking member 1322 can be reset under the action of the reset member 1323, so as to ensure the working performance of the locking assembly 130 to a certain extent, and enable the brake 1000 to perform driving braking.

[0175] In some embodiments, Figure 2 and Figure 7 As shown, the detection assembly 140 includes a sensor and a magnetic ring 142. The magnetic ring 142 is arranged on the rotating member 121, and the sensor is used to detect the rotation angle of the magnetic ring 142. Thus, the purpose of detecting the position of the rotor 1112 is achieved, 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 the PCB board 180 and electrically connected to the PCB board 180, so as to realize the use of the angular velocity sensor to read the rotation angle and rotation speed of the magnetic ring 142, and achieve the purpose of using the detection component 140 to detect the rotation angle and rotation speed of the rotor 1112, so that the motor 111 can be accurately controlled according to different control strategies.

[0177] In a specific example, when the motor 111 rotates and drives the rotating part 121 to rotate, the magnetic ring 142 follows the rotation to change the angle of the magnetic ring 142. The angle and speed changes of the magnetic ring 142 are detected by the sensor integrated on the PCB board 180, and the rotation angle and speed information of the motor 111 can be detected in real time. Based on the real-time feedback of the rotation angle and speed information, closed-loop control is achieved.

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

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

[0180] The magnetic ring sleeve 141 can be interference-fitted with the rotating member 121 to achieve a fixed connection between the magnetic ring sleeve 141 and the rotating member 121 , thereby achieving the use of the magnetic ring sleeve 141 to set the magnetic ring 142 on the rotating member 121 .

[0181] Optionally, the magnetic ring sleeve 141 is made of sintered steel so that the magnetic ring sleeve 141 is formed into a non-magnetic part, thereby avoiding demagnetization of the magnetic ring 142 to a certain extent, ensuring that the position of the rotor 1112 can be effectively detected by using the sensor and the magnetic ring 142 to ensure the working performance of the detection component 140.

[0182] In some embodiments, the moving member 122 can be rotatably matched with the rotating member 121. In this way, when the rotating member 121 drives the moving member 122 to move, the moving member 122 can not only move relative to the rotating member 121, but also rotate relative to the rotating member 121, so that the moving member 122 can be used to drive the booster lever 200 to move, thereby facilitating the use of the booster lever 200 to increase the driving force of the moving member 122, thereby ensuring the braking performance of the brake 1000 to a certain extent.

[0183] In some embodiments, Figure 7As shown, the moving member 122 includes a first moving member 1222 and a second moving member 1223, wherein the first moving member 1222 is connected to the rotating member 121 and forms a kinematic pair with the rotating member 121, the second moving member 1223 is rotatably connected to the first moving member 1222, and the second moving member 1223 is connected to the booster lever 200. Wherein, by connecting the first moving member 1222 to the rotating member 121 and forming a kinematic pair with the rotating member 121, so as to facilitate the use of the rotating member 121 to drive the first moving member 1222 to move, since the second moving member 1223 is rotatably connected to the first moving member 1222 and the second moving member 1223 is connected to the booster lever 200, the booster lever 200 can be driven to move by the second moving member 1223 during the movement of the first moving member 1222, thereby facilitating the use of the booster lever 200 to increase the driving force of the moving member 122.

[0184] At the same time, by rotatably connecting the second moving member 1223 with the first moving member 1222 , the second moving member 1223 and the rotating member 121 can be rotatably matched, so that the moving member 122 can effectively drive the boosting lever 200 to move.

[0185] In some embodiments, when the moving member 122 includes a first moving member 1222 and a second moving member 1223, as shown in FIG. Figure 7 As shown, the rotating connecting head 1221 is arranged on the second moving member 1223, so that when the second moving member 1223 is connected to the booster lever 200, the rotating connecting head 1221 can be used to realize the rotational connection between the second moving member 1223 and the booster lever 200, thereby realizing the use of the second moving member 1223 to drive the booster lever 200 to rotate, so as to facilitate the use of the booster lever 200 to increase the driving force of the moving member 122.

[0186] In some embodiments, Figure 7 As shown, an adapter 1224 is provided between the first moving member 1222 and the second moving member 1223, at least part of the first moving member 1222 is sleeved on the outer periphery of the adapter 1224 and fixedly connected to the adapter 1224, a rotating cavity 1225 is provided in the adapter 1224, and the second moving member 1223 is rotatably provided in the rotating cavity 1225. In other words, the first moving member 1222 is fixedly connected to the adapter 1224, and the second moving member 1223 is rotatably connected to the adapter 1224, thereby realizing the rotational connection between the second moving member 1223 and the first moving member 1222, and reducing the difficulty of the rotational connection between the second moving member 1223 and the first moving member 1222.

[0187] In some embodiments, Figure 7As shown, a second elastic member 1226 is disposed in the rotating cavity 1225, and opposite ends of the second elastic member 1226 are respectively connected with the second moving member 1223 and the adapter 1224. Since the second elastic member 1226 can be deformed under the action of an external force, while the second elastic member 1226 is used to dispose the second moving member 1223 in the rotating cavity 1225, the second elastic member 1226 can be prevented from hindering the rotation of the second moving member 1223, thereby realizing the second moving member 1223 being rotatably disposed in the rotating cavity 1225, and reducing the difficulty of the second moving member 1223 being rotatably connected with the adapter 1224.

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

[0189] In some embodiments, Figure 7 As shown, the actuator 100 further includes a stopper 150, which cooperates with the moving member 122 and is used to limit the circumferential rotation of the moving member 122. This serves to limit the radial rotation of the lead screw, ensuring that the moving member 122 can be effectively driven to move during the rotation of the rotating member 121, thereby ensuring the working performance of the transmission assembly 120 to a certain extent.

[0190] In some embodiments, Figure 7 As shown, the anti-rotation member 150 is formed as a spline shaft, and the moving member 122 is sleeved on the outer circumference of the spline shaft. The spline shaft is connected to the moving member 122 to limit the radial rotation of the moving member 122 and play a role in anti-rotation.

[0191] Of course, in some other embodiments, the anti-rotation member 150 may also be arranged at the connection between the moving member 122 and the boosting lever 200, such as: the anti-rotation member 150 is formed as a anti-rotation protrusion arranged in the circumferential direction of the moving member 122, and the anti-rotation protrusion cooperates with the anti-rotation groove on the boosting lever 200, which can also limit the radial rotation of the moving member 122 and play a role in stopping rotation.

[0192] In summary, the transmission assembly 120 of the brake 1000 of the present application is embedded in the interior of the power assembly 110, and the transmission assembly 120 is configured to be formed into a ball screw mechanism, so that the transmission assembly 120 can efficiently convert the rotational motion of the motor 111 into horizontal motion, and at the same time further increase the driving force of the brake 1000 through the booster lever 200. However, since the ball screw mechanism does not have a self-locking capability and cannot realize the parking brake function alone, the present application utilizes a mechanism that can quickly respond after the drive member 131 is energized 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 two states of driving braking and parking braking.

[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 a specific embodiment of the present invention is described below in conjunction with the accompanying drawings. The embodiments of the present invention may be all embodiments after combining the above-mentioned multiple technical solutions, and are not limited to the following specific embodiments.

[0195] Example 1

[0196] A brake 1000, combined with Figure 1-Figure 5 As shown, it includes an actuator 100, a force-enhancing lever 200, a brake pad 300 and a push plate 400.

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

[0198] like Figure 2 As shown, the power component 110 includes a motor 111, and the motor 111 includes 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 component 120. The transmission component 120 includes a rotating part 121 and a moving part 122. The rotating part 121 is a screw sleeve, and the moving part 122 is a lead screw. The screw sleeve is sleeved on the lead screw to form a ball screw mechanism. The stator 1111 and the rotor 1112 are used to drive the rotating part 121 to rotate to control the reciprocating movement of the moving part 122 to output a driving force.

[0199] Combination Figure 1 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the booster lever 200 includes a first connecting portion 220 and a second connecting portion 230, the first connecting portion 220 includes a first portion 222 and a second portion 223 connected to each other, the second portion 223 and the second connecting portion 230 are connected via an arc segment 240, the radial dimension of the second portion 223 gradually increases in a direction toward the second connecting portion 230, the end of the first portion 222 away from the second portion 223 is provided with a rotating connection port 221, the end of the transmission assembly 120 facing the first portion 222 is provided with a rotating connection head 1221, and the rotating connection head 1221 is provided with a rotating connection head 1222. 21 is rotatably connected in the rotating connection port 221, so that the transmission assembly 120 is rotatably connected to one end of the booster lever 200, and the second connection part 230 extends along the length direction of the brake pad 300. The side surface of the end of the second connection part 230 away from the first connection part 220 is an arc surface 231, and the arc surface 231 protrudes toward the brake pad 300. The center of the arc surface 231 is spaced apart from the rotation center of the booster lever 200, and the arc surface 231 is movably matched with the push plate 400, and the push plate 400 is connected to the brake pad 300 to drive the brake pad 300 to move.

[0200] The booster lever 200 is used to amplify the driving force. The driving force is amplified by the booster lever 200 and reaches the push plate 400. The push plate 400 then pushes the brake pad 300 to complete the braking action.

[0201] like Figure 1 and Figure 2 As shown, the locking assembly 130 is disposed at one axial end of the rotating member 121. The locking assembly 130 is used to lock the rotating member 121 to limit the rotation of the rotating member 121, thereby realizing the use of the locking assembly 130 to lock or unlock the transmission assembly 120 and limit the movement of the transmission assembly 120 when locked.

[0202] like Figure 2As shown, the locking assembly 130 includes a driving member 131, an executive member 132 and a guide member 133. The driving member 131 includes an electromagnetic module 1311. The electromagnetic module 1311 is electrically connected to the PCB board 180. The PCB board 180 is used to control the electromagnetic module 1311 to be energized in the forward direction, energized in the reverse direction or de-energized. A permanent magnet is provided on the electromagnetic module 1311. The executive member 132 includes a push rod 1321, a plurality of first locking members 1322 and a reset member 1323. The first locking member 1322 is a ratchet. The push rod 1321 is a plurality of first locking members 1322 and a reset member 1323. The rod 1321 includes a connecting section 13211 and a pushing section 13212. The connecting section 13211 is connected to the driving member 131. The pushing section 13212 is connected to the end of the connecting section 13211 that is away from the driving member 131. The electromagnetic module 1311 is magnetically matched with the push rod 1321. The driving member 131 is configured to control the current direction of the electromagnetic module 1311 to push the push rod 1321 to move back and forth. The permanent magnet enables the electromagnetic module 1311 to continue to maintain magnetic matching with the push rod 1321 after power is off.

[0203] like Figure 2 As shown, the interior of the rotating member 121 is hollow, at least part of the push rod 1321 is arranged in the rotating member 121, and multiple first locking members 1322 are spaced around the outer periphery of the push rod 1321 so that the multiple first locking members 1322 are located between the push rod 1321 and the rotating member 121, at least part of the guide member 133 is arranged between the rotating member 121 and the push rod 1321, the first locking member 1322 is penetrated by the guide member 133, and the guide member 133 is used to limit the moving direction of the first locking member 1322, and the push rod 1321 extends along the axial direction of the rotating member 121. In the direction in which the push rod 1321 moves toward the first locking member 1322, the outer peripheral wall of the pushing section 13212 extends obliquely in the direction away from the first locking member 1322, 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 toward the rotating member 121.

[0204] like Figure 2 As shown, the rotating member 121 is provided with a first locking fitting 1211 , which is a ratchet. When the push rod 1321 pushes the first locking member 1322 toward the rotating member 121 , the pawl and the ratchet are engaged with each other to lock the rotating member 121 and restrict the rotating member 121 from rotating.

[0205] Combination Figure 2 , Figure 4 and Figure 5 As shown, the reset member 1323 is a reset spring, which is sleeved on the outer periphery of the first locking member 1322. The reset member 1323 is used to push the first locking member 1322 to move in a direction away from the first locking fitting 1211 to unlock the rotating member 121, so that the rotating member 121 can rotate under the drive of the motor 111.

[0206] like Figure 2 As shown, the detection component 140 includes a sensor and a magnetic ring 142 arranged on the rotating member 121. The sensor is electrically connected to the PCB board 180. The sensor is used to detect the rotation angle of the magnetic ring 142, so as to achieve the purpose of detecting the position of the rotor 1112.

[0207] Example 2

[0208] A brake 1000, based on embodiment 1, is different from embodiment 1 in that it is combined with Figure 6 , Figure 7 and Figure 8 As shown, the locking assembly 130 is sleeved on the outer periphery of the rotating part 121, and the locking assembly 130 includes a coil 1312, and the coil 1312 is electrically connected to the PCB board 180. The PCB board 180 is used to control the coil 1312 to be energized or de-energized. The actuator 132 includes a first mating piece 1324, a second locking mating piece 1325 and a second mating piece 1326. The second locking mating piece 1325 is connected to the rotating part 121, and at least part of the second locking mating piece 1325 is arranged between the first mating piece 1324 and the second mating piece 1326. The coil 1312 is magnetically engaged with the first mating piece 1324 to control the first mating piece 1324 and the second mating piece 1326 to lock or release the second locking mating piece 1325.

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

[0210] In addition, different from Example 1, Figure 2 As shown, the actuator 100 also includes a stop member 150, which cooperates with the moving member 122. The stop member 150 is used to limit the circumferential rotation of the moving member 122. The moving member 122 includes a first moving member 1222 and a second moving member 1223. The first moving member 1222 is connected to the rotating member 121 and forms a kinematic pair with the rotating member 121. The second moving member 1223 is rotatably connected to the first moving member 1222. The second moving member 1223 is connected to the booster lever 200 via a rotating connector 1221.

[0211] The following describes a brake system according to an embodiment of the present invention.

[0212] A braking system according to an embodiment of the present invention includes: a brake 1000 .

[0213] Among them, the brake 1000 is the aforementioned brake 1000, and the specific structure of the brake 1000 is not described here.

[0214] It can be seen from the above structure that the braking system of the embodiment of the present invention, by adopting the aforementioned brake 1000, not only has a simple structure, but can also output a larger braking force to optimize the working performance of the braking system.

[0215] Next, a vehicle according to an embodiment of the present invention will be described.

[0216] A vehicle according to an embodiment of the present invention includes: a braking system.

[0217] Among them, the braking system is the aforementioned braking system, and the specific structure of the braking system is not described here.

[0218] It can be seen from the above structure that the vehicle according to the embodiment of the present invention adopts the above brake system to realize the use of the above brake 1000, which is beneficial to improving the performance of the vehicle.

[0219] It should be noted that the vehicles mentioned here can be fuel vehicles, gas vehicles or new energy vehicles. New energy vehicles can be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc.

[0220] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0221] Figure 4 Four first locking members 1322 are shown for illustrative purposes, but after reading the above technical solution, ordinary technicians can obviously understand that the solution can be applied to one, two, three or more first locking members 1322, which also falls within the scope of protection of the present invention.

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

[0223] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0224] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A brake, characterized in that: include: An actuator (100), the actuator (100) comprising a power assembly (110) and a transmission assembly (120), the power assembly (110) and the transmission assembly (120) being in transmission connection; A booster lever (200) is connected between the transmission assembly (120) and the brake pad (300). The booster lever (200) is in transmission connection with the transmission assembly (120) so that the booster lever (200) can drive the brake pad (300) to move.

2. The brake according to claim 1, characterized in that The booster lever (200) comprises a first connecting portion (220) and a second connecting portion (230) which are connected to each other, wherein one end of the first connecting portion (220) which is away from the second connecting portion (230) is connected to the transmission assembly (120), and one end of the second connecting portion (230) which is away from the first connecting portion (220) is transmission-connected to the brake pad (300).

3. The brake according to claim 2, characterized in that The first connecting portion (220) is movably connected to the transmission assembly (120).

4. The brake according to claim 3, characterized in that One of the transmission assembly (120) and the first connection part (220) is provided with a rotating connection head (1221), and the other is provided with a rotating connection port (221), and the rotating connection head (1221) is rotatably connected in the rotating connection port (221).

5. The brake according to claim 2, characterized in that The side surface of one end of the second connecting portion (230) facing away from the first connecting portion (220) is an arc surface (231), the arc surface (231) protrudes toward the brake pad (300), and the arc surface (231) is movably matched with the brake pad (300).

6. The brake according to claim 5, characterized in that The center of the arc surface (231) is spaced apart from the rotation center of the boosting lever (200).

7. The brake according to claim 2, characterized in that The second connecting portion (230) extends along the length direction of the brake pad (300).

8. The brake according to claim 2, characterized in that The radial dimension of at least a portion of the first connection portion (220) gradually increases in a direction approaching the second connection portion (230).

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

10. The brake according to claim 2, characterized in that The first connecting portion (220) and the second connecting portion (230) are connected via a circular arc segment (240).

11. The brake according to claim 1, characterized in that The power assembly (110) comprises a motor (111), and the transmission assembly (120) comprises a rotating member (121) and a moving member (122) connected to the rotating member (121). The motor (111) is used to drive the rotating member (121) to rotate so as to control the reciprocating movement of the moving member (122), and the moving member (122) is connected to the boosting lever (200).

12. The brake according to claim 11, characterized in that It also includes a locking assembly (130), wherein the locking assembly (130) is used to lock the transmission assembly (120) to limit at least a portion of the movement of the transmission assembly (120).

13. The brake according to claim 12, characterized in that The locking assembly (130) is arranged at one axial end of the rotating member (121), and the locking assembly (130) is used to lock the rotating member (121) to limit the rotation of the rotating member (121).

14. The brake according to claim 13, characterized in that The locking assembly (130) comprises a driving member (131) and an actuator (132), wherein the driving member (131) is used to drive the actuator (132) to move back and forth so that the actuator (132) has a first position for limiting the rotation of the rotating member (121) and a second position for unlocking the rotating member (121).

15. The brake according to claim 14, characterized in that The actuator (132) includes a push rod (1321) and a first locking member (1322); the push rod (1321) is connected to the driving member (131); a first locking fitting member (1211) is provided on the rotating member (121); the driving member (131) is used to drive the push rod (1321) to move so as to push the first locking member (1322) to move toward the first locking fitting member (1211); the first locking member (1322) and the first locking fitting member (1211) are limitedly matched, and the actuator (132) is switched to the first position.

16. The brake according to claim 15, characterized in that The rotating member (121) is hollow inside, at least a portion of the push rod (1321) is disposed inside the rotating member (121), and the first locking member (1322) is disposed between the push rod (1321) and the rotating member (121); The push rod (1321) extends axially along the rotating member (121) so that at least a portion of the push rod (1321) is located between the driving member (131) and the first locking member (1322), and in the direction from the driving member (131) to the first locking member (1322), at least a portion of the outer peripheral wall of the push rod (1321) extends obliquely in a direction away from the rotating member (121).

17. The brake according to claim 16, characterized in that The push rod (1321) comprises a pushing section (13212), and the pushing section (13212) is used to push the first locking member (1322) to move toward the first locking fitting member (1211); The pushing section (13212) is formed in a cone 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).

18. The brake according to claim 17, characterized in that The push rod (1321) comprises a connecting section (13211), wherein the connecting section (13211) is connected to the driving member (131), and the pushing section (13212) is connected to an end of the connecting section (13211) that is away from the driving member (131).

19. The brake according to claim 15, characterized in that The actuator (132) further comprises a reset member (1323), wherein the reset member (1323) is used to push the first locking member (1322) to move in a direction away from the first locking fitting member (1211) so that the actuator (132) switches to the second position.

20. The brake according to claim 15, characterized in that The first locking member (1322) is a pawl, and the first locking mating member (1211) is a ratchet. In the first position, the pawl is in abutment with the ratchet.

21. The brake according to claim 16, characterized in that 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).

22. The brake according to claim 16, characterized in that The locking assembly (130) further comprises a guide member (133), at least a portion of which is disposed between the rotating member (121) and the push rod (1321), the first locking member (1322) being passed through the guide member (133), and the guide member (133) being used to limit the moving direction of the first locking member (1322).

23. The brake according to claim 15, characterized in that The driving member (131) comprises an energizable electromagnetic module (1311), and the electromagnetic module (1311) is magnetically matched with the push rod (1321); The driving member (131) is configured to drive the push rod (1321) to reciprocate by controlling the current direction of the electromagnetic module (1311).

24. The brake according to claim 23, characterized in that The electromagnetic module (1311) is provided with a permanent magnet, and the permanent magnet is used to control the electromagnetic module (1311) and the push rod (1321) to maintain magnetic attraction after the electromagnetic module (1311) is powered off.

25. The brake according to claim 14, characterized in that The driving member (131) includes a coil (1312) that can be energized, and the actuator (132) includes a second locking member and a second locking fitting member (1325), wherein the second locking fitting member (1325) is connected to the rotating member (121), and the coil (1312) is magnetically coupled with the second locking member to control the second locking member to lock or release the second locking fitting member (1325).

26. The brake according to claim 25, characterized in that The second locking member includes a first fitting member (1324) and a second fitting member (1326), and at least a portion of the second locking fitting member (1325) is arranged between the first fitting member (1324) and the second fitting member (1326). The coil (1312) is magnetically coupled with the first fitting member (1324) and / or the second fitting member (1326) to control the movement of the first fitting member (1324) and / or the second fitting member (1326) relative to the second locking fitting member (1325).

27. The brake according to claim 26, characterized in that The first mating piece (1324) and the second mating piece (1326) are both formed as locking plates, and the second locking mating piece (1325) is formed as a locking mating plate, and the locking mating plate is connected to the outer peripheral wall of the rotating piece (121), and the two locking plates are spaced apart on opposite sides of the locking mating plate.

28. The brake according to claim 25, characterized in that The locking assembly (130) is sleeved on the outer circumference of the rotating member (121).

29. The brake according to claim 11, characterized in that The motor (111) comprises a stator (1111) and a rotor (1112), wherein the stator (1111) is sleeved on the outer circumference of the rotor (1112), and the rotor (1112) is arranged on the outer circumference of the transmission assembly (120); The actuator (100) further comprises a detection component (140), wherein the detection component (140) is used to detect the position of the rotor (1112).

30. The brake according to claim 29, characterized in that The detection component (140) comprises a sensor and a magnetic ring (142) arranged on the rotating member (121); the sensor is used to detect the rotation angle of the magnetic ring (142).

31. The brake according to any one of claims 11 to 30, characterized in that The moving member (122) and the rotating member (121) are rotatably matched.

32. The brake according to claim 31, characterized in that The actuator (100) further comprises a rotation-stopping member (150), wherein the rotation-stopping member (150) cooperates with the moving member (122), and the rotation-stopping member (150) is used to limit the moving member (122) from rotating along its circumferential direction.

33. A braking system, characterized in that: Comprising a brake according to any one of claims 1-32.

34. A vehicle, characterized in that: Comprising a braking system according to claim 33.

Images