Brake assembly, braking system with same and vehicle

Abstract

The utility model discloses a brake assembly, a brake system with the brake assembly and a vehicle. The brake assembly comprises a brake motor, a brake assembly and a brake assembly, the transmission mechanism is in transmission connection with the brake motor, and the transmission mechanism comprises a first gear; the electromagnetic valve and the first gear are arranged in the first direction, the electromagnetic valve comprises a valve rod, the valve rod can move between a locking position and an unlocking position, the first gear is provided with a parking hole, the valve rod extends into the parking hole to lock the first gear at the locking position, and the valve rod is far away from the first gear at the unlocking position. According to the brake assembly, the electromagnetic valve and the transmission mechanism are arranged, the first gear is provided with the parking hole, and the valve rod extends into the parking hole at the locking position to lock the first gear, so that the parking requirement of a vehicle is met, the structure is simple, the number of parts is small, and the manufacturing cost of the brake assembly is well reduced; and the size of the brake assembly is smaller, so that the brake assembly is convenient to mount and arrange.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is related to a brake assembly and brake system and vehicle with it. BACKGROUND

[0002] In today's global intelligent vehicle development, electronic mechanical brake technology is used in vehicle braking system and is more and more widely used and popularized, and electronic mechanical brake system has great advantages in response time, response accuracy, active safety performance, braking efficiency, new energy vehicle range and the like.

[0003] In the related art, the parking mechanism or device in the electronic mechanical brake system usually adopts the way of combining ratchet and pawl with motor to provide parking function and prevent vehicle movement when the vehicle is in long time static braking or parking, thereby preventing the vehicle from having unexpected accident risk, but the ratchet and pawl structure has large volume, and the number of parts is large, so that the volume of the brake assembly in the brake system is large and the production cost is high, and the brake assembly is inconvenient to arrange. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in the prior art. Therefore, the utility model provides a brake assembly, which can reduce the number of parts of the parking mechanism, thereby reducing the cost of the brake assembly and facilitating the installation and arrangement of the brake assembly.

[0005] The utility model further provides a brake system with the brake assembly.

[0006] The utility model further provides a vehicle with the brake system.

[0007] According to the brake assembly of the utility model, the brake assembly comprises a brake motor, a transmission mechanism, an electromagnetic valve and a first gear.

[0008] According to the brake assembly of the utility model, through setting electromagnetic valve and transmission mechanism, transmission mechanism includes first gear, first gear sets parking hole, valve rod of electromagnetic valve is movable between locking position and unlocking position, valve rod extends into parking hole to lock first gear in locking position, satisfy the parking need of vehicle, simple structure, less parts, make the production cost of brake assembly greatly reduce, and make the volume of brake assembly smaller, thereby facilitating the installation arrangement of brake assembly.

[0009] In some embodiments of the utility model, the first gear is rotatable about an axis extending in the first direction, the valve rod extends in the first direction, and the valve rod is movable in the first direction between the locking position and the unlocking position.

[0010] In some embodiments of the utility model, the electromagnetic valve further comprises: a valve body having a mounting cavity extending in the first direction; a first magnet and an electromagnetic coil, the electromagnetic coil being movably arranged in the mounting cavity in the first direction, the first magnet being arranged on the valve body on a side of the electromagnetic coil facing away from the first gear in the first direction, the valve rod passing through the first magnet and the electromagnetic coil, the valve rod being connected to the electromagnetic coil, and the electromagnetic coil being configured to switch the valve rod between the locking position and the unlocking position by cooperating with the first magnet through power on and power off.

[0011] In one embodiment of the utility model, the electromagnetic valve further comprises a second magnet, the second magnet being arranged on the valve body on a side of the electromagnetic coil facing the first gear in the first direction, the valve rod passing through the second magnet in the first direction, and the second magnet having a magnetic property opposite to that of the first magnet.

[0012] In some embodiments of the utility model, the number of parking holes is multiple, and the multiple parking holes are arranged in a circumferential direction of the first gear.

[0013] In some embodiments of the utility model, the parking hole extends in a radial direction of the first gear.

[0014] In some embodiments of the utility model, the output shaft of the brake motor is provided with an output gear, and the first gear is in meshing transmission with the output gear.

[0015] In some embodiments of the utility model, the brake assembly further comprises: a shell, the brake motor, the transmission mechanism and the electromagnetic valve are all installed in the shell, a ball screw mechanism, the ball screw mechanism is arranged along the first direction, the ball screw mechanism and the brake motor are arranged at intervals in the second direction, the ball screw mechanism and the brake motor are located on the same side of the transmission mechanism in the first direction, the transmission mechanism is in transmission connection with the ball screw mechanism, the second direction intersects with the first direction, a brake, the brake comprises a friction plate and a brake disc, the friction plate is arranged on the side of the ball screw mechanism in the first direction away from the transmission mechanism, the ball screw mechanism is configured to drive the friction plate to move along the first direction to cooperate with the brake disc to brake.

[0016] According to the brake system of the second aspect of the utility model, comprising the brake assembly according to the first aspect of the utility model.

[0017] According to the brake system of the utility model, by setting the brake assembly of the first aspect, by setting electromagnetic valve and transmission mechanism, transmission mechanism includes first gear, first gear sets parking hole, the valve rod of electromagnetic valve is movable between locking position and unlocking position, the valve rod is inserted into parking hole to lock first gear in locking position, satisfy the need of parking of vehicle, simple structure, the number of parts is less, the production manufacturing cost of brake assembly is reduced well, and the volume of brake assembly is smaller, thereby facilitating the installation arrangement of brake assembly.

[0018] According to the vehicle of the third aspect of the utility model, comprising the brake system according to the second aspect of the utility model.

[0019] According to the vehicle of the utility model, by setting the brake system of the second aspect, by setting electromagnetic valve and transmission mechanism, transmission mechanism includes first gear, first gear sets parking hole, the valve rod of electromagnetic valve is movable between locking position and unlocking position, the valve rod is inserted into parking hole to lock first gear in locking position, satisfy the need of parking of vehicle, simple structure, the number of parts is less, the production manufacturing cost of brake assembly is reduced well, and the volume of brake assembly is smaller, thereby facilitating the installation arrangement of brake assembly.

[0020] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the sectional view of brake assembly according to the utility model embodiment;

[0022] Figure 2is a schematic view of a first gear according to an embodiment of the present application;

[0023] Figure 3 is a schematic view of an electromagnetic valve in an unlocked position according to an embodiment of the present application;

[0024] Figure 4 is a schematic view of an electromagnetic valve in a locked position according to an embodiment of the present application cooperating with a first gear;

[0025] Figure 5 is a schematic view of an electromagnetic valve in an unlocked position according to an embodiment of the present application cooperating with a first gear.

[0026] Reference signs:

[0027] 10, electromagnetic valve;

[0028] 11, valve body; 111, mounting cavity; 12, first magnet; 13, second magnet; 14, electromagnetic coil; 15, valve rod;

[0029] 20, transmission mechanism; 21, first gear; 211, parking hole; 22, second gear;

[0030] 30, ball screw mechanism;

[0031] 31, screw rod; 32, nut; 33, ball;

[0032] 40, brake; 41, caliper; 411, caliper body; 42, friction plate; 43, piston;

[0033] 50, brake motor; 51, output gear;

[0034] 60, housing; 61, main housing; 62, heat dissipation cover plate;

[0035] 70, first bearing; 80, plane bearing; 90, controller;

[0036] 100, brake assembly. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0038] First, refer to Figures 1-5A vehicle according to a third aspect embodiment of the present invention will be briefly described. The vehicle includes a braking system, which includes a brake assembly 100. The brake assembly 100 can meet the needs of the vehicle for wheel braking and vehicle parking.

[0039] The following is for reference. Figures 1-5 A brake assembly 100 according to a first aspect embodiment of the present invention is described.

[0040] like Figures 1-5 As shown, a brake assembly 100 according to a first aspect embodiment of the present invention includes: a brake motor 50, a transmission mechanism 20, and a solenoid valve 10. The transmission mechanism 20 is drively connected to the brake motor 50, and the transmission mechanism 20 includes a first gear 21; the solenoid valve 10 and the first gear 21 are connected in a first direction (e.g., ...). Figure 1 The solenoid valve 10 is arranged in the vertical direction shown. It includes a valve stem 15, which is movable between a locked position and an unlocked position. The first gear 21 is provided with a parking hole 211. In the locked position, the valve stem 15 extends into the parking hole 211 to lock the first gear 21. In the unlocked position, the valve stem 15 moves away from the first gear 21.

[0041] In this embodiment, the brake assembly 100 includes a brake motor 50, a transmission mechanism 20, and a solenoid valve 10. The transmission mechanism 20 is connected to the brake motor 50. For example, the brake assembly 100 may include a brake disc and friction pads 42. When the vehicle needs to brake, the brake motor 50 operates, and the transmission mechanism 20 transmits the driving force output by the brake motor 50 to drive the friction pads 42 to clamp the brake disc, thereby braking the wheels of the vehicle. The transmission mechanism 20 can also reduce speed to increase torque and meet braking requirements.

[0042] In this embodiment, the transmission mechanism 20 includes a first gear 21, which is used to transmit power between the brake motor 50 and the friction plate 42. The first gear 21 is provided with a parking hole 211. The valve stem 15 of the solenoid valve 10 can extend into the parking hole 211 to lock the first gear 21 when in the locked position. When in the unlocked position, the valve stem 15 is away from the first gear 21. The structure is simple. When the vehicle is driving normally or braking, the valve stem 15 can be in the unlocked position, so that the first gear 21 can rotate normally to meet the braking needs of the brake assembly 100. When the vehicle needs to be parked, the valve stem 15 can be moved from the unlocked position to the locked position, and the valve stem 15 extends into the parking hole 211 to stop the first gear 21 from rotating. This allows the force transmitted by the transmission mechanism 20 to the friction plate 42 to remain stable, so that the friction plate 42 and the brake disc maintain a stable braking state, thereby meeting the needs of parking the vehicle and preventing the vehicle from moving.

[0043] The embodiment sets the parking hole 211 in the first gear 21 in the transmission mechanism 20, the electromagnetic valve 10 cooperates with the first gear 21 to realize the parking requirement of the vehicle, the use and arrangement of the ratchet and pawl structure are well omitted, the number of parts in the brake assembly 100 is less, the production manufacturing cost of the brake assembly 100 is well reduced, the weight of the brake assembly 100 is reduced, the overall volume of the brake assembly 100 is reduced, so that the brake assembly 100 occupies less space when arranged in the vehicle, and the brake assembly 100 is more convenient to install and arrange.

[0044] In the embodiment, the electromagnetic valve 10 cooperates with the first gear 21 to form the parking mechanism of the brake assembly 100, the valve rod 15 of the electromagnetic valve 10 extends into the parking hole 211 of the first gear 21 to complete parking, the electromagnetic valve 10 directly cooperates with the transmission mechanism 20 to park, and the parking response time of the brake assembly 100 is well optimized.

[0045] In the embodiment, the electromagnetic valve 10 and the first gear 21 are arranged in the first direction, which is reasonable, so that the electromagnetic valve 10 can conveniently cooperate with the parking hole 211 on the first gear 21.

[0046] According to the brake assembly 100 in the embodiment of the utility model, by setting the electromagnetic valve 10 and the transmission mechanism 20, the transmission mechanism 20 includes the first gear 21, the first gear 21 is provided with the parking hole 211, the valve rod 15 of the electromagnetic valve 10 is movable between the locking position and the unlocking position, the valve rod 15 extends into the parking hole 211 to lock the first gear 21 in the locking position, the parking requirement of the vehicle is met, the structure is simple, the number of parts is less, the production manufacturing cost of the brake assembly 100 is well reduced, and the volume of the brake assembly 100 is smaller, so that the brake assembly 100 is conveniently installed and arranged.

[0047] In some embodiments of the utility model, referring to Figures 3-5 As shown in the figure, the first gear 21 is rotatable about an axis extending in the first direction, the valve rod 15 extends in the first direction, and the valve rod 15 is movable in the first direction between the locking position and the unlocking position.

[0048] In the embodiment, the first gear 21 is rotatable about an axis extending in the first direction, the first direction is the thickness direction of the first gear 21, the valve rod 15 extends in the first direction and moves in the first direction between the locking position and the unlocking position, the structure is simple and reasonable, the electromagnetic valve 10 and the first gear 21 are conveniently arranged in the brake assembly 100, the electromagnetic valve 10 can be arranged compactly with the first gear 21, so that the overall structure of the brake assembly 100 is more compact, the volume of the brake assembly 100 is smaller, the brake assembly 100 occupies less space, and the brake assembly 100 is more convenient to arrange.

[0049] In some embodiments of the utility model, reference Figure 1 And Figure 3 As shown in the figure, the electromagnetic valve 10 can further include: a valve body 11, a first magnet 12 and an electromagnetic coil 14, the valve body 11 has a mounting cavity 111, the mounting cavity 111 extends along the first direction;The electromagnetic coil 14 is movably arranged in the mounting cavity 111 along the first direction, the first magnet 12 is arranged on the valve body 11 and located on the side of the electromagnetic coil 14 away from the first gear 21, the valve rod 15 passes through the first magnet 12 and the electromagnetic coil 14, the valve rod 15 is connected with the electromagnetic coil 14, and the electromagnetic coil 14 is configured to drive the valve rod 15 to switch between the locking position and the unlocking position by cooperating with the first magnet 12 through power on and off.

[0050] In the embodiment, the electromagnetic valve 10 is provided with the valve body 11, the first magnet 12 and the electromagnetic coil 14 are mounted on the valve body 11, the electromagnetic coil 14 is connected with the valve rod 15 and movably arranged in the mounting cavity 111 of the valve body 11 along the first direction, the electromagnetic coil 14 is configured to drive the valve rod 15 to switch between the locking position and the unlocking position by cooperating with the first magnet 12 through power on and off, when the electromagnetic coil 14 is in the power-off state, the first magnet 12 plays an adsorption role on the electromagnetic coil 14, since the first magnet 12 is arranged on the side of the electromagnetic coil 14 away from the first gear 21, the valve rod 15 can be stably kept away from the first gear 21 under the adsorption of the first magnet 12 through the electromagnetic coil 14, i.e. in the unlocking position, when the electromagnetic coil 14 is in the power-on state, the magnetic field generated by the power-on electromagnetic coil 14 can repel the magnetic field of the first magnet 12, so that the electromagnetic coil 14 moves away from the first magnet 12 along the first direction under the repulsion and towards the first gear 21, so that the valve rod 15 can move towards the first gear 21 under the cooperation of the electromagnetic coil 14 and the first magnet 12 and extend into the parking hole 211, so that the valve rod 15 moves to the locking position.

[0051] In the embodiment, the mounting cavity 111 extends along the first direction, the electromagnetic coil 14 is arranged in the mounting cavity 111, the mounting cavity 111 can play a good guiding role on the movement of the electromagnetic coil 14, the valve rod 15 passes through the first magnet 12, which can meet the movement needs of the valve rod 15, exemplarily, the first magnet 12 can be provided with a through hole to facilitate the valve rod 15 to pass through, the valve rod 15 cooperates with the first magnet 12 to play a certain guiding and supporting role on the electromagnetic coil 14, so that the electromagnetic coil 14 can stably drive the valve rod 15 to move between the unlocking position and the locking position along the first direction.

[0052] The electromagnetic valve 10 in the embodiment is provided with the first magnet 12 and the electromagnetic coil 14, the valve rod 15 is connected with the electromagnetic coil 14, the first magnet 12 is driven by the on-off electricity of the electromagnetic coil 14 to move the valve rod 15 between the unlocking position and the locking position, the structure is simple, and the valve rod 15 can be stably moved to perform the parking operation.

[0053] In an embodiment of the utility model, reference Figures 3-5 As shown in the figure, the electromagnetic valve 10 can also include the second magnet 13, the second magnet 13 is arranged on the valve body 11, the second magnet 13 is arranged on the side of the electromagnetic coil 14 facing the first gear 21 in the first direction, the valve rod 15 passes through the second magnet 13 in the first direction, and the second magnet 13 is opposite to the magnetism of the first magnet 12.

[0054] The electromagnetic valve 10 in the embodiment is also provided with the second magnet 13, the second magnet 13 is arranged on the side of the electromagnetic coil 14 facing the first gear 21, the first magnet 12 and the second magnet 13 can be arranged on the two sides of the electromagnetic coil 14 in the first direction, the valve rod 15 passes through the second magnet 13, the second magnet 13 can be provided with a through hole to pass through the valve rod 15, the second magnet 13 is opposite to the magnetism of the first magnet 12, and the use requirement can be well met, the electromagnetic coil 14 can be de-energized when the valve rod 15 is in the locking position, the position of the valve rod 15 can be fixed by the second magnet 13 adsorbing the electromagnetic coil 14, so that the valve rod 15 and the first gear 21 can be stably and reliably locked, the vehicle is in a stable and reliable parking state, the probability of parking failure of the vehicle when the battery is completely discharged is reduced, and the parking safety and reliability of the vehicle are well guaranteed.

[0055] When the vehicle normally travels, the electromagnetic valve 10 can be in a de-energized state, the electromagnetic coil 14 is not energized, the valve rod 15 is stably kept in the unlocking position by the first magnet 12 adsorbing the electromagnetic coil 14, when the vehicle needs to be parked, the electromagnetic valve 10 is in a conduction state, the magnetic field generated by the electromagnetic coil 14 repels the magnetic field of the first magnet 12 and attracts the magnetic field of the second magnet 13, so that the electromagnetic coil 14 moves along the first direction towards the second magnet 13, the valve rod 15 moves to the locking position, the valve rod 15 passes through the second magnet 13 and extends into the parking hole 211 of the first gear 21 to be locked with the first gear 21, so that the parking operation is completed. When the vehicle is in a parking release state, the electromagnetic valve 10 can be reversely energized, the magnetic field generated by the electromagnetic coil 14 is reversed, the magnetic field generated by the electromagnetic coil 14 repels the magnetic field of the second magnet 13 and attracts the magnetic field of the first magnet 12, so that the electromagnetic coil 14 moves along the first direction towards the first magnet 12, the valve rod 15 moves from the locking position to the unlocking position, the valve rod 15 exits the parking hole 211, and the parking release operation is completed.

[0056] In the embodiment, the second magnet 13 is arranged to cooperate with the first magnet 12 and the electromagnetic coil 14, so that the electromagnetic valve 10 does not need to be powered all the time when the vehicle is in the parking state, the brake assembly 100 has lower requirements on the performance and requirements of the electromagnetic valve 10, the parking control in the brake system has lower requirements, and the power consumption of the vehicle in the parking state can be reduced to some extent, and the operation cost of the brake assembly 100 is greatly reduced.

[0057] In some embodiments of the utility model, the diameter of the valve rod 15 can be greater than or equal to 3mm and less than or equal to 5mm.

[0058] In the embodiment, the diameter of the valve rod 15 is greater than or equal to 3mm, so that the valve rod 15 has sufficient diameter size to maintain good structural strength, so that the valve rod 15 can stably and reliably lock the first gear 21, and the diameter of the valve rod 15 is less than or equal to 5mm, so that the valve rod 15 has a small size structure and weight, so that the electromagnetic valve 10 can stably and reliably fix the valve rod 15 by magnetic force, so that the electromagnetic valve 10 can cooperate with the first gear 21 to stably and reliably perform the parking action and the parking release action. For example, the diameter of the valve rod 15 can be 3mm, 4mm, 4.2mm, 4.5mm, 5mm, etc.

[0059] In some embodiments of the utility model, as shown in Figure 2 The number of parking holes 211 can be multiple, and the multiple parking holes 211 are arranged along the circumference of the first gear 21.

[0060] In the embodiment, the number of parking holes 211 is multiple, and the multiple parking holes 211 are arranged along the circumference of the first gear 21, which can well meet the needs of the parking brake of the vehicle. It can be understood that there are many parking environments when the vehicle is parked, for example, the vehicle is parked on the flat ground or on the slope, so that the required parking braking force of the vehicle is different under different environments, the rotation angle of the first gear 21 is different when the driving force of the brake motor 50 is transmitted by the transmission mechanism 20, and the position of the electromagnetic valve 10 is fixed. When the valve rod 15 of the electromagnetic valve 10 cooperates with the first gear 21 to lock after the brake assembly 100 completes the braking, the parking holes 211 on the first gear 21 are not aligned with the valve rod 15 in the first direction, and the first gear 21 needs to continue to rotate by a certain angle to make the valve rod 15 can be locked into the parking hole 211 to lock the first gear 21. When the first gear 21 continues to rotate by a large angle, the braking force generated by the brake assembly 100 on the wheel is greatly different from the required braking force of the parking brake, so that the braking stability and reliability of the brake assembly 100 are poor, and the braking effect is poor.

[0061] In the embodiment, the plurality of parking holes 211 are arranged along the circumference of the first gear 21, and the plurality of parking holes 211 can be matched with the valve rod 15, so that when the vehicle is parked, the first gear 21 can rotate a small angle, and one of the parking holes 211 can be aligned with the valve rod 15 to lock the parking, so that the braking force of the parking brake assembly 100 on the wheels of the vehicle after parking can be better close to or equal to the required braking force of the vehicle parking brake, so that the brake assembly 100 can maintain good parking brake effect under different parking brake working conditions.

[0062] In an embodiment of the utility model, refer to Figure 2 The number of parking holes 211 is greater than or equal to 36 and less than or equal to 72.

[0063] In the embodiment, the number of parking holes 211 is greater than or equal to 36 and less than or equal to 72, and specifically, the plurality of parking holes 211 can be uniformly and spacedly arranged along the circumference of the first gear 21, so that every 5 to 10 degrees on the circumference of the first gear 21 has a parking hole 211, so that the valve rod 15 can be inserted into the parking hole 211 without rotating too much angle when the first gear 21 is parked, so that the braking force after parking can be well matched with the parking requirement of the vehicle, and the brake assembly 100 can have good parking ability and parking effect. In the embodiment, the number of parking holes 211 is less than or equal to 72, which can avoid too many parking holes 211 affecting the structural strength of the first gear 21, so that the first gear 21 can have good structural strength, so that the first gear 21 can stably transmit and stably and reliably cooperate with the valve rod 15 for parking operation, and the brake assembly 100 has stable and reliable parking ability. For example, the number of parking holes 211 can be 36, 38, 40, 45, 48, 52, 53, 59, 65, 72, etc., and the number of parking holes 211 can be reasonably set according to requirements.

[0064] In some embodiments of the utility model, as Figure 2 The parking hole 211 can extend along the radial direction of the first gear 21.

[0065] In the embodiment, the parking hole 211 extends along the radial direction of the first gear 21, which can increase the size of the parking hole 211, so that the first gear 21 can be well lightened, and the weight of the brake assembly 100 is reduced.

[0066] In one embodiment of the utility model, parking hole 211 can be along first direction and run through first gear 21. This can avoid the situation that valve rod 15 interferes with the bottom wall of parking hole 211 when extending into parking hole 211, and make valve rod 15 can stably penetrate into parking hole 211 to lock first gear 21. Exemplarily, valve rod 15 can penetrate parking hole 211, so that first gear 21 can be more stably locked.

[0067] In one embodiment of the utility model, valve rod 15 can be a metal piece. This can make valve rod 15 have good structural strength, so that valve rod 15 can more stably and reliably cooperate with first gear 21 to lock, and make the parking of vehicle more stable and reliable.

[0068] In one embodiment of the utility model, on the projection plane perpendicular to the first direction, the projection of first gear 21 is along the radial direction thereof, and the projection of valve rod 15 is located between the wheel core and the outer contour and at a middle position.

[0069] In this embodiment, the projection of valve rod 15 is arranged at a middle position between the wheel core and the outer contour. This can make electromagnetic valve 10 have a certain spacing with the gear shaft of first gear 21 and the first bearing 70 for the gear shaft bearing when the electromagnetic valve 10 is integrally assembled with first gear 21 and output gear 51, and make electromagnetic valve 10 have a certain spacing with output gear 51 and the output shaft of brake motor 50, so that the electromagnetic valve 10 and output gear 51 can be well avoided from interfering or affecting each other when assembled and arranged, and the electromagnetic valve 10 and transmission mechanism 20 can be conveniently and easily arranged.

[0070] In some embodiments of the utility model, as shown in Figure 1 The output shaft of brake motor 50 can be provided with output gear 51, and first gear 21 is engaged with output gear 51 to drive.

[0071] The first gear 21 is engaged with the output gear 51 on the output shaft of the brake motor 50 in the embodiment, the structure is simple, and the transmission needs can be well met. Since the output torque of the output shaft of the brake motor 50 is small, the torque of the first gear 21 engaged with the output gear 51 in the transmission structure is small when the first gear 21 cooperates with the electromagnetic valve 10 to perform the parking operation, so that the torsional force that needs to be borne or overcome by the valve rod 15 after the valve rod 15 extends into the parking hole 211 is small, thereby enabling the electromagnetic valve 10 to stably and reliably lock the first gear 21, so that the parking brake stability and reliability of the brake assembly 100 are better, the performance requirement of the electromagnetic valve 10 is lower, and the electromagnetic valve 10 can more easily meet the parking locking needs. Since the first gear 21 is arranged close to the brake motor 50, that is, close to the power source, the electromagnetic valve 10 cooperates with the first gear 21 to lock the parking, the power source can be quickly interrupted when the vehicle is parked, and the subsequent gear structure of the transmission mechanism 20 continues to be driven due to inertia, so that the operation state of the transmission mechanism 20 can be more stable.

[0072] In some embodiments of the utility model, as shown in Figure 1 The brake assembly 100 can further include a housing 60, a ball screw mechanism 30 and a brake 40, the brake motor 50, the transmission mechanism 20 and the electromagnetic valve 10 are all installed on the housing 60. Figure 2 The ball screw mechanism 30 is arranged in the first direction, the ball screw mechanism 30 and the brake motor 50 are arranged in the second direction (such as the left-right direction), the ball screw mechanism 30 and the brake motor 50 are located on the same side of the transmission mechanism 20 in the first direction, the transmission mechanism 20 is in driving connection with the ball screw mechanism 30, and the second direction intersects with the first direction. The brake 40 includes a friction plate 42 and a brake disc, the friction plate 42 is arranged on the side of the ball screw mechanism 30 in the first direction away from the transmission mechanism 20, and the ball screw mechanism 30 is configured to drive the friction plate 42 to move in the first direction to cooperate with the brake disc to brake.

[0073] The brake assembly 100 in the embodiment comprises a housing 60, a ball screw mechanism 30 and a brake 40, the brake 40 comprises a friction plate 42 and a brake disc, the ball screw mechanism 30 is arranged along a first direction and is in driving connection with the transmission mechanism 20, and the ball screw mechanism 30 can comprise a screw rod 31, balls 33 and a nut 32, the nut 32 is sleeved on the screw rod 31 and is matched with the screw rod 31 through the balls 33, so that the nut 32 moves along the axial direction of the screw rod 31 under the action of the balls 33 rolling along the thread groove along with the rotation of the screw rod 31, the screw rod 31 can extend along the first direction, the screw rod 31 is in driving connection with the transmission mechanism 20, so that the rotary motion output by the brake motor 50 through the transmission mechanism 20 can be converted into linear motion through the ball screw, and the nut 32 can push the friction plate 42 to abut against the brake disc along the first direction, so as to realize the braking operation of the vehicle.

[0074] In the embodiment, the housing 60 is arranged, the brake motor 50, the transmission mechanism 20 and the electromagnetic valve 10 are all mounted on the housing 60, the structure is simple, and the brake motor 50, the transmission mechanism 20 and the electromagnetic valve 10 are conveniently mounted and arranged, the ball screw and the brake motor 50 are arranged on the same side of the transmission mechanism 20 and are arranged in a second direction, so that the ball screw and the brake motor 50 are arranged compactly, the transmission mechanism 20, the ball screw mechanism 30 and the brake motor 50 are conveniently in driving connection and compactly arranged, so that the overall structure of the brake assembly 100 is more compact, the overall volume of the brake assembly 100 is smaller, and the brake assembly 100 is more flexible and convenient to install and arrange in the vehicle.

[0075] In the embodiment, the second direction intersects the first direction, which aims to illustrate that the first direction and the second direction can be arranged perpendicularly or only intersected and arranged non-perpendicularly.

[0076] In some embodiments of the utility model, as shown in Figure 1 As shown in the figure, the transmission mechanism 20 can further comprise a second gear 22, the second gear 22 is arranged in a second direction and is in meshing transmission with the first gear 21, the ball screw mechanism 30 comprises a screw rod 31, the screw rod 31 extends along a first direction, and the screw rod 31 is coaxially arranged with and in driving connection with the second gear 22.

[0077] The transmission mechanism 20 in the embodiment is provided with the second gear 22 in meshing transmission with the first gear 21, and the first gear 21 can be a composite gear, which can include a primary gear and a secondary gear arranged coaxially and rotating synchronously, the primary gear and the secondary gear can be an integral piece or a split piece assembled on the same gear shaft, the primary gear can be formed with the parking hole 211, the primary gear is in meshing transmission with the output gear 51 on the motor shaft, and the secondary gear is in meshing transmission with the second gear 22, so that the transmission needs of the brake motor 50 to the lead screw 31 and the needs of adjusting the output rotating speed and torque can be met.

[0078] The second gear 22 in the embodiment is arranged coaxially and in transmission connection with the lead screw 31, and the second gear 22 can be assembled and connected with the lead screw 31 through a key connection or the like, so that the second gear 22 rotates to drive the lead screw 31 to rotate, and in turn drives the nut 32 to move in the first direction, so that the transmission needs of the brake motor 50 to the ball screw mechanism 30 can be well met, the first gear 21 and the second gear 22 are arranged in the second direction, so that the arrangement positions of the ball screw mechanism 30 and the brake motor 50 can be well matched, the driving force of the brake motor 50 can be stably and efficiently transmitted to the lead screw 31, so that the brake assembly 100 can stably and reliably operate during braking.

[0079] In an embodiment of the utility model, the shell 60 can include a main shell 61 having a receiving cavity, and the brake assembly 100 can further include a first bearing 70, and the first gear 21 and the second gear 22 can be rotatably installed in the receiving cavity through the first bearing 70 respectively.

[0080] The first gear 21 and the second gear 22 of the transmission mechanism 20 in the embodiment are rotatably installed in the receiving cavity of the main shell 61 through the first bearing 70, which is simple in structure and facilitates the assembly and fixation of the transmission mechanism 20, and the first bearing 70 can well reduce the friction of the gear shaft when the first gear 21 and the second gear 22 rotate, so that the first gear 21 and the second gear 22 can rotate more stably.

[0081] In some examples of the utility model, as shown in Figure 1 The main shell 61 can be provided with a through hole penetrating through the main shell 61 along the first direction, the electromagnetic valve 10 can be arranged on the side of the main shell 61 away from the first gear 21 and detachably connected with the main shell 61, and the valve rod 15 passes through the through hole and extends into the parking hole 211 when in the locking position.

[0082] The electromagnetic valve 10 is detachably mounted on the main shell 61 in the embodiment, simple structure, facilitating assembly and arrangement of the electromagnetic valve 10, the main shell 61 is provided with a through hole, the valve rod 15 can be well avoided, the valve rod 15 can smoothly pass through the main shell 61 to cooperate with the first gear 21 operation, the electromagnetic valve 10 is arranged on the side, away from the first gear 21, of the main shell 61, that is, the electromagnetic valve 10 is arranged on the outside of the accommodating cavity, the space in the accommodating cavity can be avoided, so that the main shell 61 and the transmission mechanism 20 can be more compact in overall structure when being arranged, the main shell 61 can well separate and protect the transmission mechanism 20 and the electromagnetic valve 10, so that the transmission mechanism 20 and the electromagnetic valve 10 can more stably cooperate.

[0083] In an embodiment of the utility model, as shown in Figure 1 The brake 40 can further include a caliper 41, the caliper 41 is connected with the shell 60, and the caliper 41 includes a caliper body 411, and the friction plate 42 is arranged on the caliper body 411.

[0084] In the embodiment, the brake 40 is further provided with the caliper 41, the caliper 41 is connected with the shell 60, simple structure, can meet the assembly and fixing needs of the brake 40 in the brake assembly 100, the friction plate 42 is arranged on the caliper body 411, and the number of the friction plate 42 is two, the two friction plates 42 are arranged at intervals in the first direction, the brake disc is fixed on the wheel and partially located between the two friction plates 42, when the vehicle brakes, the brake motor 50 operates, the second gear 22 drives the lead screw 31 to rotate, so that the nut 32 pushes the friction plate 42 on the same side in the first direction, the caliper body 411 of the caliper 41 slides to drive the friction plate 42 on the other side to move towards the brake disc synchronously, so that the two friction plates 42 gradually clamp the brake disc, and then the vehicle is braked, when the vehicle is unbraked, the brake motor 50 can be reversed to move the nut 32 away from the friction plate 42, and the friction plate 42 returns to the original position under the action of the return spring of the caliper 41, so as to release the brake disc.

[0085] In the embodiment, the brake 40 is provided with the caliper 41 and the friction plate 42 is arranged on the caliper body 411, which can meet the braking operation needs of the brake 40, so that the brake assembly 100 can stably perform driving braking or parking braking operation.

[0086] In some examples of the utility model, as shown in Figure 1 The caliper body 411 has an assembly cavity, the ball screw mechanism 30 is arranged in the assembly cavity, one end of the lead screw 31, away from the friction plate 42, is rotatably abutted and matched with the bottom wall of the assembly cavity through the plane bearing 80, the brake 40 can further include a piston 43, the piston 43 is arranged on the other end of the lead screw 31 and connected with the nut 32, and the piston 43 is abutted and matched with the friction plate 42.

[0087] The screw rod 31 is rotatably abutted with the bottom wall of the assembly cavity through the plane bearing 80 in the embodiment, when the screw rod 31 rotates, the piston 43 and the nut 32 are away from or close to the bottom wall as a whole, when the piston 43 abuts against the friction plate 42 and pushes the friction plate 42 to apply a braking force to the brake disc, the screw rod 31 forms a counterforce to the bottom wall of the assembly cavity, the plane bearing 80 can well bear the axial force from the screw rod 31, the clamp body 411 moves away from the brake disc in the first direction as a whole under the counterforce of the screw rod 31, so that the friction plate 42 on the other side can be moved towards the brake disc, so that the two friction plates 42 can cooperate to clamp the brake disc, so that the braking of the vehicle is realized, the plane bearing 80 and the piston 43 are arranged, the use requirement of the brake assembly 100 during braking operation can be well met, and the screw rod 31 can be more stably operated.

[0088] In some embodiments of the utility model, as shown in Figure 1 The controller 90 can be electrically connected with the electromagnetic valve 10 and the brake motor 50.

[0089] The controller 90 and the electromagnetic valve 10 and the brake motor 50 are electrically connected in the embodiment, the structure is simple, and the electrical control requirement of the brake assembly 100 during service braking and parking braking can be well met.

[0090] Exemplarily, the controller 90 can be communicatively connected with a parking switch or a throttle of the vehicle through an electronic control unit of the vehicle, when the driver sends a parking instruction through the parking switch or the throttle, the electronic control unit can calculate the required clamping force according to the parking working condition of the vehicle and control the brake motor 50 to operate to drive the brake 40 to brake through the controller 90, after the brake 40 brakes to form the required braking force, the controller 90 can energize the electromagnetic valve 10, so that the valve rod 15 of the electromagnetic valve 10 extends into the parking hole 211, thereby locking the first gear 21, and the parking action is completed, when the vehicle needs to release the parking state, the controller 90 can reversely energize the electromagnetic valve 10, so that the valve rod 15 is withdrawn from the parking hole 211, thereby completing the release of the parking action.

[0091] In one embodiment of the utility model, as shown in Figure 1 The controller 90 can be a control circuit board, the controller 90 is installed on the main shell 61 and located on the side, away from the transmission mechanism 20, of the main shell 61, and the shell 60 can further include a heat dissipation cover plate 62, the heat dissipation cover plate 62 is connected with the main shell 61 and covers the controller 90.

[0092] The shell 60 covers the controller 90 with the heat dissipation cover plate 62 in the embodiment, so that the controller 90 can be well protected and cooled, thereby making the controller 90 operate more stably and reliably.

[0093] Reference will now be made to Figures 1-5 A brake system according to the second aspect of the application is described.

[0094] As Figures 1-5 shown, the brake system according to the embodiment of the application comprises the brake assembly 100 according to the first aspect of the application.

[0095] Other configurations and operations of the brake system according to the embodiment of the application are known to those skilled in the art and will not be described in detail here.

[0096] The brake system according to the embodiment of the application, by setting the brake assembly 100 of the above first aspect, by setting the electromagnetic valve 10 and the transmission mechanism 20, the transmission mechanism 20 comprises the first gear 21, the first gear 21 is provided with the parking hole 211, the valve rod 15 of the electromagnetic valve 10 is movable between the locking position and the unlocking position, the valve rod 15 extends into the parking hole 211 in the locking position to lock the first gear 21, meet the parking needs of the vehicle, simple structure, less parts, the production cost of the brake assembly 100 is reduced well, and the volume of the brake assembly 100 is smaller, so as to facilitate the installation and arrangement of the brake assembly 100.

[0097] Reference will now be made to Figures 1-5 A vehicle according to the third aspect of the application is described.

[0098] As Figures 1-5 shown, the vehicle according to the embodiment of the application comprises the brake system according to the second aspect of the application.

[0099] Other configurations and operations of the brake system according to the embodiment of the application are known to those skilled in the art and will not be described in detail here.

[0100] The vehicle according to the embodiment of the application, by setting the brake system of the above second aspect, by setting the electromagnetic valve 10 and the transmission mechanism 20, the transmission mechanism 20 comprises the first gear 21, the first gear 21 is provided with the parking hole 211, the valve rod 15 of the electromagnetic valve 10 is movable between the locking position and the unlocking position, the valve rod 15 extends into the parking hole 211 in the locking position to lock the first gear 21, meet the parking needs of the vehicle, simple structure, less parts, the production cost of the brake assembly 100 is reduced well, and the volume of the brake assembly 100 is smaller, so as to facilitate the installation and arrangement of the brake assembly 100.

[0101] Reference will now be made to Figures 1-5 A vehicle according to one specific embodiment of the application is described.

[0102] As Figures 1-5 shown, the vehicle comprises a brake system, the brake system is an electronic mechanical brake system, the brake system comprises a brake assembly 100, the brake assembly 100 comprises a shell 60, a controller 90, a brake motor 50, a transmission mechanism 20, a solenoid valve 10, a ball screw mechanism 30 and a brake 40.

[0103] The shell 60 comprises a main shell 61 and a heat dissipation cover plate 62, the main shell 61 is formed with an accommodating cavity, the heat dissipation cover plate 62 is connected with the main shell 61 and is formed with an arrangement space in the first direction, the controller 90 is a PCBA (Printed Circuit Board Assembly) controller 90, which is a control circuit board structure, the controller 90 is arranged in the arrangement space and extends along the second direction, and the controller 90 is detachably connected with the heat dissipation cover plate 62. The solenoid valve 10 is arranged in the arrangement space and is mounted on the main shell 61, and the main shell 61 is provided with a through hole matched with the solenoid valve 10.

[0104] The brake motor 50 is mounted on the main shell 61, and an output shaft of the brake motor 50 extends along the first direction, and an output gear 51 is arranged on the output shaft, the output gear 51 is arranged in the accommodating cavity, and the transmission mechanism 20 is arranged in the accommodating cavity and comprises a first gear 21 and a second gear 22, the first gear 21 comprises a primary gear and a secondary gear arranged coaxially and rotating synchronously, the first gear 21 is rotatably mounted in the accommodating cavity through a first bearing 70, the primary gear is in meshing transmission with the output gear 51, and the second gear 22 is in meshing transmission with the secondary gear.

[0105] The brake 40 comprises a caliper 41, a piston 43, a friction plate 42 and a brake disc, the brake disc is mounted on a wheel hub of the vehicle, the caliper 41 is connected with the shell 60, the caliper 41 comprises a caliper body 411, the caliper body 411 has an assembly cavity extending along the first direction, the ball screw mechanism 30 is arranged in the assembly cavity, the ball screw mechanism 30 comprises a lead screw 31, a nut 32 and balls 33, the lead screw 31 extends along the first direction and rotatably abuts and matches with the bottom wall of the assembly cavity through a plane bearing 80, the nut 32 is threadedly matched with the lead screw 31 through the balls 33, the piston 43 is fixedly connected with the nut 32, two friction plates 42 are arranged on the caliper body 411, and the two friction plates 42 are arranged on the two sides of the brake disc respectively, wherein the friction plate 42 close to the ball screw mechanism 30 is in abutting engagement with the piston 43 in the first direction. The controller 90 is electrically connected with the brake motor 50 and the solenoid valve 10.

[0106] The electromagnetic valve 10 comprises a valve body 11, a first magnet 12, a second magnet 13, a valve rod 15 and an electromagnetic coil 14, the valve body 11 has a mounting cavity 111, the electromagnetic coil 14 is arranged in the mounting cavity 111 and is movable in a first direction, the first magnet 12 and the second magnet 13 are magnetically opposite and are arranged on both sides of the electromagnetic coil 14 in the first direction respectively, the first magnet 12 and the second magnet 13 are fixed on the valve body 11, the valve rod 15 is fixed with the electromagnetic coil 14 and penetrates through the first magnet 12, the second magnet 13 and the mounting cavity 111 in the first direction, a primary gear of the first gear 21 is provided with a plurality of parking holes 211, the plurality of parking holes 211 are uniformly spaced and closely arranged along the circumference of the first gear 21, and in the embodiment, the electromagnetic valve 10 cooperates with the first gear 21 of the transmission mechanism 20 to form a parking locking mechanism of the brake assembly 100.

[0107] When the vehicle needs to brake, the driver can transmit a braking instruction to the electronic control unit of the vehicle through the electronic pedal, the controller 90 controls the brake motor 50 to operate, the brake motor 50 drives the transmission mechanism 20 to operate, and then drives the ball screw mechanism 30 to work, the ball screw mechanism 30 converts the rotary motion of the nut 32 into reciprocating motion in the first direction, and transmits axial force and lateral force to the piston 43, so as to convert the rotary torque output by the brake motor 50 into axial thrust to drive the piston 43, so that the piston 43 drives the friction plate 42 to move towards the brake disc under the driving action of the brake motor 50, and then the two friction plates 42 of the brake 40 cooperate to clamp the brake disc to form clamping force, so as to realize driving brake or parking brake of the vehicle.

[0108] When the vehicle needs to park, the driver issues a parking instruction through the parking button switch or the parking gear position lamp, and the electronic control unit controls the brake assembly 100 to brake according to the parking working condition of the vehicle, after the braking is completed, the controller 90 controls the electromagnetic valve 10 to operate, the electromagnetic coil 14 of the electromagnetic valve 10 is electrified and the generated magnetic field repels the first magnet 12 and attracts the second magnet 13, so that the valve rod 15 moves from the unlocking position to the locking position against the magnetic force of the first magnet 12 under the movement of the electromagnetic coil 14 in the first direction, the valve rod 15 penetrates through the through hole and extends into the parking hole 211, so as to lock the first gear 21, complete the parking action, and the electromagnetic valve 10 is de-energized after completing the parking action, and the valve rod 15 is stably kept in the locking position by the adsorption action of the electromagnetic coil 14 and the second magnet 13. When the vehicle needs to release the parking, the electromagnetic valve 10 is reversely electrified, the valve rod 15 exits the parking hole 211, and the electromagnetic valve 10 can be de-energized, so that the valve rod 15 is stably kept in the unlocking position by the adsorption action of the electromagnetic coil 14 and the second magnet 13.

[0109] The embodiment realizes parking through cooperation of the electromagnetic valve 10 and the first gear 21 of the transmission mechanism 20, a new parking mechanism scheme is formed, the response time of the parking mechanism of the brake assembly 100 can be well optimized, the transmission efficiency during parking of the brake system is improved, the ratchet and pawl parts are reduced, the cost of the brake assembly 100 is reduced, the weight and volume are reduced, the cost of each vehicle can be reduced by 20 yuan, and the brake assembly 100 can be more flexibly and conveniently arranged in the vehicle, or the vehicle space is saved.

[0110] In the embodiment, the electromagnetic valve 10 and the transmission mechanism 20 are arranged, the transmission mechanism 20 comprises the first gear 21, the first gear 21 is provided with the parking hole 211, the valve rod 15 of the electromagnetic valve 10 is movable between the locking position and the unlocking position, the valve rod 15 extends into the parking hole 211 in the locking position to lock the first gear 21, the parking requirement of the vehicle is met, the structure is simple, the number of parts is small, the production cost of the brake assembly 100 is well reduced, the volume of the brake assembly 100 is smaller, so that the brake assembly 100 is conveniently installed and arranged, the electromagnetic valve 10 can stably and reliably keep the valve rod 15 in the locking position in the case of power failure, so that the safety and reliability of parking can be ensured in the case that the vehicle is completely powered off due to long-time starting.

[0111] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0112] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0113] In the utility model, unless another definite provision and limitation, the term " install " " link " " connect " " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection, also can be communication;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element internal communication or two element's mutual action relationship. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0114] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" 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 utility model. In the present specification, the illustrative description 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. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0115] Although the embodiments of the present utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A brake assembly, characterized in that, include: Brake motor (50); A transmission mechanism (20) is connected to the brake motor (50) in a transmission manner, and the transmission mechanism (20) includes a first gear (21); A solenoid valve (10) is arranged in a first direction with the first gear (21). The solenoid valve (10) includes a valve stem (15) which is movable between a locked position and an unlocked position. The first gear (21) is provided with a parking hole (211). In the locked position, the valve stem (15) extends into the parking hole (211) to lock the first gear (21). In the unlocked position, the valve stem (15) is away from the first gear (21).

2. The brake assembly according to claim 1, characterized in that, The first gear (21) is rotatable about an axis extending along the first direction, the valve stem (15) extends along the first direction, and the valve stem (15) is movable along the first direction between the locked position and the unlocked position.

3. The brake assembly according to claim 1, characterized in that, The solenoid valve (10) also includes: A valve body (11) having a mounting cavity (111) extending along the first direction; A first magnet (12) and an electromagnetic coil (14) are provided. The electromagnetic coil (14) is movably disposed in the mounting cavity (111) along the first direction. The first magnet (12) is disposed in the valve body (11) and located on the side of the electromagnetic coil (14) away from the first gear (21) in the first direction. The valve stem (15) passes through the first magnet (12) and the electromagnetic coil (14). The valve stem (15) is connected to the electromagnetic coil (14). The electromagnetic coil (14) is configured to drive the valve stem (15) to switch between the locked position and the unlocked position by engaging with the first magnet (12) through power switching.

4. The brake assembly according to claim 3, characterized in that, The solenoid valve (10) further includes a second magnet (13), which is disposed on the valve body (11). The second magnet (13) is disposed on the side of the solenoid coil (14) facing the first gear (21) in the first direction. The valve stem (15) passes through the second magnet (13) along the first direction. The second magnet (13) has the opposite magnetism to the first magnet (12).

5. The brake assembly according to any one of claims 1-4, characterized in that, The number of parking holes (211) is multiple, and the multiple parking holes (211) are arranged at intervals along the circumference of the first gear (21).

6. The brake assembly according to any one of claims 1-4, characterized in that, The parking hole (211) extends radially along the first gear (21).

7. The brake assembly according to any one of claims 1-4, characterized in that, The output shaft of the brake motor (50) is provided with an output gear (51), and the first gear (21) meshes with the output gear (51) for transmission.

8. The brake assembly according to any one of claims 1-4, characterized in that, Also includes: The housing (60), the brake motor (50), the transmission mechanism (20) and the solenoid valve (10) are all mounted on the housing (60); A ball screw mechanism (30) is arranged along the first direction, and the ball screw mechanism (30) and the brake motor (50) are arranged at a distance in the second direction. The ball screw mechanism (30) and the brake motor (50) are located on the same side of the transmission mechanism (20) in the first direction. The transmission mechanism (20) is connected to the ball screw mechanism (30) in a transmission manner. The second direction intersects the first direction. The brake (40) includes a friction pad (42) and a brake disc. The friction pad (42) is disposed on the side of the ball screw mechanism (30) opposite to the transmission mechanism (20) in the first direction. The ball screw mechanism (30) is configured to drive the friction pad (42) to move in the first direction to cooperate with the brake disc for braking.

9. A braking system, characterized in that, Includes the brake assembly according to any one of claims 1-8.

10. A vehicle, characterized in that, Includes the braking system according to claim 9.

Images