Electromechanical braking devices and vehicles

Abstract

This application provides an electromechanical braking device and a vehicle. The electromechanical braking device includes a backup device and two braking devices, each used to brake at least one wheel of the vehicle. The operating modes of the electromechanical braking device include a main braking mode and a secondary braking mode. In the main braking mode, the two braking devices receive motor braking force output from a brake motor. In the secondary braking mode, the backup device receives pedal braking force output from the vehicle's pedal mechanism and transmits the braking force to the two braking devices respectively. The electromechanical braking device of this application has high reliability and can brake the vehicle when the motor fails, ensuring vehicle driving safety.

Description

Technical Field

[0001] This application relates to the field of electromechanical braking technology, and in particular to an electromechanical braking device and a vehicle. Background Technology

[0002] An electro-mechanical braking system (EMB) is a braking system that uses an electric motor to drive a mechanical structure that actuates friction pads to clamp a brake disc, thereby generating braking force. When the motor fails to drive the friction pads to clamp the brake disc, the EMB can use a purely mechanical backup braking mechanism to do so, thus fulfilling the braking requirement. Specifically, the pedal braking force output by the vehicle's pedal mechanism is transmitted through the backup braking mechanism to actuate the friction pads to clamp the brake disc. However, if the backup braking mechanism malfunctions, the vehicle cannot be braked, affecting driving safety. Therefore, the reliability of the backup braking mechanism affects the reliability of the EMB, and consequently, the driving safety of the vehicle. Consequently, ensuring the reliability of the EMB has become a pressing issue. Summary of the Invention

[0003] This application provides an electromechanical braking device and a vehicle. The electromechanical braking device has high reliability and can brake the two wheels of the vehicle separately when the motor fails to work, thereby improving the safety of vehicle driving.

[0004] This application provides an electromechanical braking device, comprising a backup device and two braking devices, each of which is used to brake at least one wheel of a vehicle. The electromechanical braking device operates in two modes: a primary braking mode and a secondary braking mode. In the primary braking mode, the two braking devices receive motor-driven braking force from a brake motor. In the secondary braking mode, the backup device receives pedal braking force from the vehicle's pedal mechanism and transmits the braking force to the two braking devices respectively.

[0005] When the electromechanical braking device of this embodiment cannot brake the rear wheels of the vehicle using the electrical force output by the brake motor, it will use the pedal braking force output by the pedal mechanism to brake the vehicle's wheels. Since the input terminal of the backup device is connected to the output terminal of the pedal mechanism, and the two output terminals of the backup device are respectively connected to the two braking devices, when the backup device receives the pedal braking force, it can transmit the braking force to the two braking devices respectively, allowing each braking device to receive the braking force independently and brake the corresponding wheel. Therefore, when one braking device cannot brake the corresponding wheel, the other braking device can also brake the corresponding wheel, thereby improving the reliability of the electromechanical braking device and ensuring safe vehicle operation.

[0006] In one possible implementation, the backup device includes a housing, a lever, and a transmission component. The lever is disposed inside the housing, and the transmission component drivesly connects the lever and the pedal mechanism. The housing includes an input opening and two output openings, which communicate with the exterior and interior of the housing, respectively. The transmission component connects to the pedal mechanism through the input opening, and the lever connects to the two braking devices through the two output openings. The pedal braking force output by the pedal mechanism is transmitted to the two braking devices via the transmission component and the lever, respectively.

[0007] With this configuration, the backup device can be connected to the pedal mechanism and receive pedal braking force. Additionally, the backup device can be connected to each of the two braking devices and transmit braking force to each of them, allowing the two braking devices to act as backups for each other, thereby improving the reliability of the electromechanical braking system.

[0008] In one possible implementation, the input opening is located on one side wall of the housing, and the two output openings are located on the other side wall of the housing. The two side walls of the housing are opposite to each other, and the lever is located between the two side walls. Alternatively, the input opening is located on one side wall of the housing, and the two output openings are respectively located on the other two side walls of the housing. The other two side walls of the housing are opposite to each other and each connected to one side wall of the housing, and the lever is located between the other two side walls.

[0009] In one possible implementation, the backup device includes two transmission elements, wherein: one transmission element is connected to one of the braking devices and the lever element through one of the output openings; and the other transmission element is connected to another of the braking devices and the lever element through another of the output openings.

[0010] With this configuration, the backup device can transmit braking force to both braking devices when it receives pedal braking force, so that the two braking devices can serve as backups for each other, thereby improving the reliability of the electromechanical braking device.

[0011] In one possible implementation, the housing component includes two output seals, wherein: each output seal is hollow, the two output seals correspond one-to-one with the two transmission components, each output seal is sleeved on the corresponding transmission component and movably connected to the transmission component, one end of each output seal is fixedly connected to the housing component and communicates with one of the output openings, and the other end of each output seal extends axially along the transmission component.

[0012] Without affecting the transmission of braking force by the transmission components, static sealing of the output opening by the output seal can prevent water, dust and other foreign objects from entering the housing, thereby preventing wear, failure and fatigue damage of the lever and transmission components, and helping to improve the service life and reliability of the backup device.

[0013] In one possible implementation, the backup device includes a housing, a lever, and a transmission component. The lever is disposed inside the housing, and the transmission component drivesly connects the lever and the pedal mechanism. The lever includes a return component and a rod-shaped component, wherein the rod-shaped component drivesly connects the two braking devices and the transmission component. The pedal braking force output by the pedal mechanism is transmitted to the two braking devices through the transmission component and the rod-shaped component, respectively. The return component restores the movement of the rod-shaped component relative to the housing due to the pedal braking force.

[0014] This configuration ensures that the backup device can still transmit braking force to both braking devices each time it receives pedal braking force, thereby improving the reliability of the electromechanical braking device.

[0015] In one possible implementation, the middle part of the rod is rotatably connected to the housing, one end of the rod is drive-connected to the transmission member, and the other end of the rod is connected to the two braking devices respectively.

[0016] With this configuration, when the transmission component receives the braking force from the pedal, it can push the rod-shaped component to rotate, and then transmit the braking force to the two braking devices through the rod-shaped component.

[0017] In one possible implementation, the housing component includes a limiting portion disposed inside the housing component and used to abut against the outer wall of the rod-shaped component to position the relative positions of the rod-shaped component and the housing component when the rod-shaped component moves due to the return component.

[0018] This configuration ensures that the rod-shaped component can return to its initial position after transmitting braking force, thus guaranteeing that the rod-shaped component can cooperate with the transmission component.

[0019] In one possible implementation, the backup device includes two transmission members, wherein one end of each transmission member is disposed on opposite sides of the rod-shaped member along a direction perpendicular to the axial direction of the rod-shaped member and is connected to the other end of the rod-shaped member, and the other end of each transmission member is connected to the two braking devices. Alternatively, the backup device includes two transmission members, wherein one end of each transmission member is disposed on the same side of the rod-shaped member along a direction perpendicular to the axial direction of the rod-shaped member and is connected to the other end of the rod-shaped member, and the other end of each transmission member is connected to the two braking devices.

[0020] In one possible implementation, the other end of the rod-shaped member includes a connecting hole, and the backup device includes a rod-shaped connector with its axis perpendicular to the axis of the rod-shaped member, wherein: the connector is movably disposed within the connecting hole, one end of each of the two transmission members is connected to the opposite ends of the connector, and the rod-shaped member is located between the two transmission members.

[0021] This configuration allows the rod-shaped component to be connected to two transmission components, enabling the backup device to transmit braking force to both braking devices upon receiving pedal braking force.

[0022] In one possible implementation, the connector includes a connecting pin and a connecting nut. The connecting pin is disposed within the connecting hole. One end of each of the two transmission members is sleeved on opposite ends of the connecting pin. One end of the connecting pin abuts against the side wall of one of the transmission members. The connecting nut is sleeved on the other end of the connecting pin and fixedly connected to it. The connecting nut abuts against the side wall of the other transmission member. Alternatively, the connector includes a connecting rod disposed within the connecting hole. Opposite ends of the connecting rod are close to two opposite side walls of the housing component. One end of each of the two transmission members is sleeved on opposite ends of the connecting rod. One end of one transmission member is located between the rod-shaped member and one side wall of the housing component, and one end of the other transmission member is located between the rod-shaped member and another side wall of the housing component. The one side wall and the other side wall of the housing component are opposite to each other.

[0023] With this type of connector, the rod-shaped member can be connected to two transmission members respectively, and the rod-shaped member is located between the two transmission members.

[0024] In one possible implementation, the other end of the rod-shaped member includes a connecting hole, and the backup device includes a rod-shaped connector with its axis perpendicular to the axial direction of the rod-shaped member. The connector is disposed within the connecting hole, and one end of each of the two transmission members is respectively sleeved on the outer wall of the connector and located between the rod-shaped member and the end of the connector away from the rod-shaped member. Alternatively, one end of each of the two transmission members is disposed on the same sidewall of the other end of the rod-shaped member and is respectively connected to the rod-shaped member.

[0025] This configuration allows one end of each of the two transmission components to be located on the same side of the rod-shaped component and connected to it respectively, thereby enabling the transmission of the same braking force to the two braking devices respectively.

[0026] In one possible implementation, the rod-shaped member includes a plate-shaped portion and a rod-shaped portion. One end of the plate-shaped portion is used to connect with the transmission member. The plate-shaped portion is sleeved on the outer wall of the middle portion of the rod-shaped portion. The axis of the rod-shaped portion is perpendicular to the length direction of the plate-shaped portion. One end of each of the two transmission members is connected to opposite ends of the rod-shaped portion and located on opposite sides of the plate-shaped portion. Alternatively, the rod-shaped member includes a plate-shaped portion and a rod-shaped portion. One end of the plate-shaped portion is used to connect with the transmission member. The rod-shaped portion is disposed on the side wall of the other end of the plate-shaped portion. The axis of the rod-shaped portion is perpendicular to the length direction of the plate-shaped portion. One end of each of the two transmission members is connected to the rod-shaped portion and located on the same side of the plate-shaped portion.

[0027] With this configuration, the rod-shaped component can be connected to two transmission components, and thus the pedal braking force output by the pedal structure can be transmitted to the two braking devices respectively through the rod-shaped component.

[0028] In one possible implementation, each of the transmission components includes a transmission head and a transmission cable, wherein: the transmission head has a hollow structure, the transmission head is sleeved on the outer wall of the other end of the rod-shaped component and movably connected to the rod-shaped component, one end of the transmission cable is fixedly connected to the outer wall of the transmission head, and the other end of the transmission cable is used to connect to the braking device.

[0029] During the process of transmitting braking force to the two braking devices, the cable head can rotate relative to the rod-shaped member, which can reduce the bending of the transmission cable, thereby reducing the wear of the transmission cable and helping to improve the service life of the transmission component.

[0030] A second aspect of this application provides a vehicle including a pedal mechanism, wheels, and an electromechanical braking device as described in any of the first aspects. A backup device of the electromechanical braking device is connected to the pedal mechanism, and the braking device of the electromechanical braking device is used to brake the wheels. Braking the vehicle using an electromechanical braking device with a backup device improves vehicle driving safety. Attached Figure Description

[0031] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of this application;

[0032] Figure 2 A schematic diagram of the structure of the first electromechanical braking device provided in the embodiments of this application;

[0033] Figure 3 This is a schematic diagram of the structure of a second type of electromechanical braking device provided in the embodiments of this application;

[0034] Figure 4 This is a schematic diagram of the structure of a balancing device provided in an embodiment of this application;

[0035] Figure 5 A perspective structural diagram of a backup device provided in an embodiment of this application;

[0036] Figure 6 for Figure 6 Exploded view of the backup device in the illustrated embodiment;

[0037] Figure 7 for Figure 6 A partial perspective structural diagram of the backup device in the illustrated embodiment;

[0038] Figure 8 A perspective structural diagram of a first type of connector connecting a transmission member and a rod-shaped member, provided in an embodiment of this application;

[0039] Figure 9 for Figure 8 An exploded view of the first type of connector in the illustrated embodiment;

[0040] Figure 10 A cross-sectional view of the second type of rod-shaped member provided in the embodiments of this application;

[0041] Figure 11 A cross-sectional view of the third type of rod-shaped member provided in the embodiments of this application;

[0042] Figure 12 A cross-sectional view of the second type of connector provided in this application embodiment, connecting the transmission member and the rod-shaped member;

[0043] Figure 13A cross-sectional view of a housing component with a receiving groove mating with a second type of connector, as provided in an embodiment of this application;

[0044] Figure 14 A cross-sectional view of the fourth type of rod-shaped member and transmission member mating provided in the embodiments of this application;

[0045] Figure 15 A schematic diagram of the structure of two transmission components provided in the embodiments of this application, located on the same side of the rod-shaped component via a first type of connector;

[0046] Figure 16 A schematic diagram of the structure of two transmission components located on the same side of a rod-shaped member via a second type of connector, as provided in the embodiments of this application;

[0047] Figure 17 A schematic diagram of the fifth type of rod-shaped member cooperating with two transmission members provided in the embodiments of this application;

[0048] Figure 18 A schematic diagram of the structure provided in this application embodiment, showing two transmission components disposed on the same side wall of a rod-shaped member;

[0049] Figure 19 This is a schematic diagram of the structure of a transmission component and a lever component cooperating, provided in an embodiment of this application.

[0050] Explanation of reference numerals in the attached figures:

[0051] 100. Electromechanical braking device;

[0052] 200. Backup device;

[0053] 10. Housing component; 11. Input opening; 12. Output opening; 13. Limiting part; 131. Mating hole; 14. Bottom shell; 15. Cover plate; 16. Receiving groove;

[0054] 20. Lever components;

[0055] 60. Return piece; 61. Main body part; 62. Matching part;

[0056] 70. Rod-shaped component; 71. Connecting hole; 72. Plate-shaped part; 73. Rod-shaped part; 74. Rotating hole; 75. Lever plate part; 76. Rotating shaft part; 77. Limiting notch;

[0057] 30. Transmission components; 31. Transmission rods; 32. Transmission gear conditions;

[0058] 40. Transfer component; 41. Transfer head; 42. Transfer cable;

[0059] 50. Output seal; 51. Output connecting pipe; 52. Output sealing pipe;

[0060] 80. Connecting component; 81. Connecting pin; 82. Connecting nut; 83. Connecting rod;

[0061] 90. Rotating shaft;

[0062] 300. Braking device;

[0063] 310. Brake;

[0064] 320. Balancing device;

[0065] 321. Lever balance component; 3211. Input connection part; 3212. Output connection part;

[0066] 322, Housing component; 3221, Input port; 3222, Output port;

[0067] 330. Connect the steel cable; 331. Connect the steel cable head; 332. Connect the cable body.

[0068] 400. Vehicles;

[0069] 410. Pedal mechanism; 420. Wheel; 421. Front wheel; 422. Rear wheel. Detailed Implementation

[0070] Figure 1 This is a schematic diagram of the structure of a vehicle provided in an embodiment of this application. Figure 1 As shown, the vehicle 400 provided in this embodiment may include wheels 420, a pedal mechanism 410, and an electromechanical braking device 100. The electromechanical braking device 100 is connected to the pedal mechanism 410 and is used to brake the wheels 420 to achieve braking of the vehicle 400. It is understood that the wheels 420 include front wheels 421 and rear wheels 422.

[0071] Among them, vehicle 400 can be a two-wheeled vehicle, a three-wheeled vehicle, an electric vehicle (EV), or it can also be a pure electric vehicle (PEV / BEV), a hybrid electric vehicle (HEV), a range-extended electric vehicle (REEV), a plug-in hybrid electric vehicle (PHEV), a new energy vehicle (NEV), etc.

[0072] In this embodiment, the electromechanical braking device 100 may include two braking devices 300. Each braking device 300 can be used to brake one wheel 420 of the vehicle 400, and the input terminals of the two braking devices 300 are connected to the same output terminal of the pedal mechanism 410. The operating modes of the electromechanical braking device 100 may include a main braking mode and a secondary braking mode. When the electromechanical braking device 100 operates in the main braking mode, the two braking devices 300 are respectively used to receive the electromechanical force output by the brake motor and brake one wheel 420 respectively. When the electromechanical braking device 100 operates in the secondary braking mode, the two braking devices 300 are used to receive the pedal braking force output by the pedal mechanism 410 and brake one wheel 420 respectively.

[0073] It is understandable that the main braking mode and the auxiliary braking mode do not operate simultaneously, and the electromechanical braking device 100 mainly operates in the main braking mode. The electromechanical braking device 100 only operates in the auxiliary braking mode when the braking device 300 cannot receive the motor power output from the brake motor, that is, when the brake motor cannot work normally or when there is a problem with the connection structure between the braking device 300 and the brake motor. In other words, the auxiliary braking mode is equivalent to the backup braking mode of the electromechanical braking device 100.

[0074] When the electromechanical braking system 100 operates in secondary braking mode, the number of times the braking devices 300 are functioning normally affects the driving safety of the vehicle 400. Specifically, if both braking devices 300 are malfunctioning, the electromechanical braking system 100 will be unable to brake the vehicle 400. Similarly, if neither braking device 300 receives pedal braking force, the electromechanical braking system 100 will also be unable to brake the vehicle 400. Therefore, the number of times the two braking devices 300 are functioning normally determines the reliability of the electromechanical braking system 100, and consequently affects the driving safety of the vehicle 400. Correspondingly, ensuring the driving safety of the vehicle 400 becomes a pressing issue that needs to be addressed.

[0075] In view of this, embodiments of this application provide an electromechanical braking device 100 and a vehicle 400.

[0076] In this embodiment of the application, when the electromechanical braking device 100 is operating in the secondary braking mode and one of the braking devices 300 is unable to brake the wheel 420, the other braking device 300 can also receive the pedal braking force output by the pedal mechanism 410 and brake the corresponding wheel 420, thereby achieving vehicle 400 braking and ensuring the safety of vehicle 400 driving.

[0077] The structure of the electromechanical braking device 100 provided in the embodiments of this application will be described below with reference to the accompanying drawings.

[0078] Figure 2 This is a schematic diagram of the structure of a first type of electromechanical braking device provided in an embodiment of this application. Figure 2 As shown, the electromechanical braking device 100 provided in this embodiment may include a backup device 200 and two braking devices 300. Each braking device 300 is used to brake at least one wheel 420 of the vehicle 400. The operating modes of the electromechanical braking device 100 may include a main braking mode and a secondary braking mode. When the electromechanical braking device 100 operates in the main braking mode, the two braking devices 300 receive the motor power output from the brake motor, causing each braking device 300 to brake at least one corresponding wheel 420. When the electromechanical braking device 100 operates in the secondary braking mode, the backup device 200 receives the pedal braking force output from the pedal mechanism 410 of the vehicle 400 and transmits the braking force to the two braking devices 300 respectively, causing each braking device 300 to brake at least one corresponding wheel 420.

[0079] Understandably, when the braking device 300 cannot receive the electric motor power output from the brake motor, that is, when the motor cannot work normally or the electric motor power output from the motor cannot be transmitted to the braking device 300, the electromechanical braking device 100 switches from the main braking mode to the auxiliary braking mode. The backup device 200 receives the braking force output from the pedal mechanism 410 and transmits the braking force to the two braking devices 300 respectively, so that the electromechanical braking device 100 brakes the vehicle 400, which can improve the reliability of the electromechanical braking device 100.

[0080] In this embodiment, the input end of the backup device 200 is connected to the output end of the pedal mechanism 410, and the two output ends of the backup device 200 are respectively connected to the two braking devices 300. Thus, the backup device 200 can split the received pedal braking force into two and transmit the braking force to the two braking devices 300 respectively. Therefore, when one braking device 300 cannot receive the pedal braking force or malfunctions, the other braking device 300 can still receive the braking force and brake the corresponding wheel 420, thereby achieving vehicle braking and improving the safety of vehicle driving. The reasons why the braking device 300 cannot receive the pedal braking force may include, but are not limited to: the backup device 200 failing to output braking force to the braking device 300, or a malfunction at the connection between the output end of the backup device 200 and the input end of the braking device 300.

[0081] It is understood that the number of wheels 420 braked by the two braking devices 300 may be the same or different. For example, in some embodiments, one braking device 300 is used to brake one wheel 420, and the other braking device 300 is used to brake two wheels 420. Or in some embodiments, one braking device 300 is used to brake one front wheel 421, and the other braking device 300 is used to brake one rear wheel 422. Or in some embodiments, each braking device 300 is used to brake one front wheel 421 or one rear wheel 422, for example, in the embodiments of this application, the two braking devices 300 brake the two front wheels 421 respectively.

[0082] In this embodiment, when the electronic braking device 300 operates in secondary braking mode and both braking devices 300 are used to brake the two front wheels 421 or the rear wheels 422, in order to prevent the vehicle 400 from drifting, fishtailing, or other loss of control, the backup device 200 can transmit the same braking force to both braking devices 300 respectively. Of course, in some embodiments, the braking forces received by the two braking devices 300 may also be different.

[0083] In this embodiment, when the electronic braking device 300 operates in auxiliary braking mode and the two braking devices 300 are used to brake the front wheels 421 and rear wheels 422 of the vehicle 400 respectively, in order to prevent the vehicle 400 from drifting, fishtailing, or other loss of control, the backup device 200, upon receiving the pedal braking force, can first transmit the braking force to the braking device 300 braking the front wheels 421 and then to the braking device 300 braking the rear wheels 422, so that the rear wheels 422 brake and lock up later than the front wheels 421. The method for achieving the sequential braking of the front wheels 421 and rear wheels 422 of the vehicle 400 by the two braking devices 300 may include, but is not limited to: integrating a delay mechanism within the backup mechanism, so that the braking device braking the rear wheels 422 receives the braking force later than the braking device 300 braking the front wheels 421; and integrating a delay mechanism within the braking device 300 braking the rear wheels 422.

[0084] In some possible implementations, the braking device 300 for braking one wheel 420 may include friction pads (not shown) and a transmission assembly (not shown). The transmission assembly is used to drive the friction pads to the backup device 200 and the brake motor, respectively. When the electromechanical braking device 100 operates in the main braking mode, the brake motor can drive the friction pads along the axial direction of the brake disc of the front wheel 421 or rear wheel 422 towards the brake disc via the transmission assembly, causing the friction pads to clamp the brake disc and achieve braking. When the electromechanical braking device 100 operates in the auxiliary braking mode, the transmission assembly is used to receive the braking force transmitted by the backup device 200 and drive the friction pads along the axial direction of the brake disc of the front wheel 421 or rear wheel 422 towards the brake disc, causing the friction pads to clamp the brake disc and achieve braking.

[0085] Figure 3 A schematic diagram of a second electromechanical braking device provided in an embodiment of this application. In one possible implementation, see [link to relevant documentation]. Figure 3 As shown, the braking device 300 for braking two wheels 420 may include two brakes 310 and a balancing device 320. Each brake 310 is used to brake one front wheel 421 or one rear wheel 422. When the electromechanical braking device 100 operates in the main braking mode, the two brakes 310 respectively receive the electric motor power output from the brake motor, thereby braking either the two front wheels 421 or the two rear wheels 422. When the electromechanical braking device 100 operates in the auxiliary braking mode, the balancing device 320 receives the braking force transmitted from the backup device 200 and transmits the same braking force to both brakes 310 respectively, thereby braking either the two front wheels 421 or the two rear wheels 422. In addition, by receiving the braking force transmitted by the backup device 200 through the balancing device 320 and transmitting the same braking force to the two brakes 310 respectively, it is possible to avoid different braking forces on the two front wheels 421 or the two rear wheels 422, which helps to further prevent the vehicle 400 from drifting, fishtailing and other loss of control, thereby improving the driving safety of the vehicle 400.

[0086] In this embodiment, the specific structure of the brake 310 is not limited. For example, in some possible implementations, the brake 310 may include a friction pad (not shown) and a clamping body (not shown). The clamping body may include a transmission part and a fixing part. The fixing part is used to connect with the vehicle body of the vehicle 400, thereby fixing the brake 310 to the vehicle 400. The transmission part is used to drive the friction pad to the brake motor (not shown) and the balancing device 320 respectively. When the electromechanical braking device 100 is operating in the main braking mode, the brake motor drives the friction pad to move axially along the front wheel 421 or the rear wheel 422 through the transmission part, so that the friction pad can clamp the brake disc of the front wheel 421 or the rear wheel 422. When the electromechanical braking device 100 is operating in the auxiliary braking mode, the balancing device 320 receives the braking force transmitted by the backup device 200 and drives the friction pad to move axially along the front wheel 421 or the rear wheel 422 through the transmission part, so that the friction pad can clamp the brake disc of the front wheel 421 or the rear wheel 422.

[0087] In this embodiment, the specific structure of the balancing device 320 is not limited. Figure 4 This is a schematic diagram of a balancing device provided in an embodiment of this application. For example, in some possible implementations, see [link to relevant documentation]. Figure 4As shown, the balancing device 320 may include a lever balancer 321 and a housing 322. The lever balancer 321 is disposed inside the housing 322 and is used to connect the backup device 200 to the two brakes 310 respectively. The braking force transmitted by the backup device 200 can be transmitted to the two brakes 310 through the lever balancer 321, so that the two brakes 310 brake the two front wheels 421 or the rear wheels 422 with the same braking force. In addition, by disposing of the lever balancer 321 inside the housing 322, foreign objects outside the housing 322 can be prevented from affecting the normal operation of the lever balancer 321, ensuring that the balancing device 320 can transmit the same braking force to the two brakes 310 respectively.

[0088] The housing 322 is used to connect to the vehicle body of the vehicle 400 to securely attach the balancing device 320 to the vehicle body. The housing 322 may include an input port 3221 and two output ports 3222, which respectively connect the interior and exterior of the housing 322. The lever balancer 321 can be connected to the backup device 200 through the input port 3221, and can be connected to the two brakes 310 respectively through the two output ports 3222. The braking force transmitted by the backup device 200 can be transmitted to the two brakes 310 through the lever balancer 321, ensuring that each brake 310 brakes one wheel 420 with the same braking force, thus improving the reliability of the electromechanical braking device 100.

[0089] In this application, the specific structure of the lever balancer 321 is not limited. For example, in some embodiments, see below. Figure 4 The lever balancer 321 may include an input connection 3211 and two output connections 3212. The input connection 3211 is used to connect to one output terminal of the backup device 200, and the two output connections 3212 are respectively used to connect to two brakes 310 along the axial direction of the lever balancer 321 (e.g., along the axis of the lever balancer 321). Figure 4 In the Y direction, two output connection portions 3212 are arranged on both sides of the input connection portion 3211, and the distance between the input connection portion 3211 and one output connection portion 3212 is equal to the distance between the input connection portion 3211 and the other output connection portion 3212. This arrangement ensures that the braking force transmitted by the lever balancer 321 to the two brakes 310 is the same, and enables the lever balancer 321 to be connected to the backup device 200 and the two brakes 310 respectively.

[0090] Understandably, by applying the lever principle: F1*L1 = F2*L2, it can be ensured that the braking force transmitted by the lever balancer 321 to the two brakes 310 is the same. Here, F1 and F2 are the braking forces transmitted by the lever balancer 321 to the two brakes 310 respectively, L1 is the distance between the input connection 3211 and one output connection 3212, and L2 is the distance between the input connection 3211 and the other output connection 3212.

[0091] In this embodiment, the connection structure between the lever balancer 321 and the two brakes 310 is not limited. For example, in some embodiments, see below. Figure 4 As shown, the balancing device 320 may also include two connecting steel cables 330, one end of each connecting steel cable 330 being movably connected to an output connection part 3212 through an output hole 3222, and the other end of each connecting steel cable 330 being connected to a brake 310.

[0092] The specific structure of the connecting steel cable 330 is not limited here. It can be determined based on the structure of the output connection portion 3212. For example, in some embodiments, the output connection portion 3212 may include a hollow output connection cavity, the inner wall of which includes a through-hole penetrating the side wall of the lever balance member 321. Correspondingly, each connecting steel cable 330 may include a connecting cable head 331 and a connecting cable body 332. The connecting cable head 331 has a rod-like structure and is movably disposed within the output connection cavity, with its axis parallel to the axis of the output connection cavity. One end of the connecting cable body 332 is fixedly connected to the outer wall of the middle portion of the connecting cable head 331, and the other end of the connecting cable body 332 is connected to the brake 310 through the through-hole.

[0093] Figure 5 This is a perspective structural diagram of a backup device provided in an embodiment of this application. Figure 6 for Figure 6 An exploded view of the backup device in the illustrated embodiment. See also: [link to relevant documentation] for some possible implementations. Figure 5 and Figure 6As shown, the backup device 200 may include a housing 10, a lever 20, and a transmission 30. The lever 20 is disposed inside the housing 10. The housing 10 includes an input opening 11 and two output openings 12, which connect the exterior and interior of the housing 10, respectively. The transmission 30 is connected to the pedal mechanism 410 via the input opening 11, thereby connecting the pedal mechanism 410 to the lever 20. The pedal braking force output by the pedal mechanism 410 can be transmitted to the lever 20 via the transmission 30. The lever 20 is connected to two braking devices 300 via the two output openings 12, respectively. Upon receiving the pedal braking force from the transmission 40, the lever 20 can transmit braking force to each of the two braking devices 300, causing each braking device 300 to brake the corresponding wheel 420. Therefore, the backup device 200 with this structure can receive the pedal braking force and transmit it to the two braking devices 300, thereby improving the reliability of the electromechanical braking device 100.

[0094] It is understood that the housing 10 has an internal cavity, the inner wall of which includes an input opening 11 and two output openings 12. The lever 20 is disposed in the cavity, thereby preventing external water, dust and other foreign objects from affecting the normal operation of the lever 20, the connection between the lever 20 and the transmission component 30, etc., and ensuring that the two braking devices 300 receive braking force respectively.

[0095] In this application, the specific structure of the housing 10 is not limited. For example, in some embodiments, see... Figure 6 As shown, the housing 10 may include a bottom shell 14 and a cover plate 15. The cover plate 15 covers the opening of the bottom shell 14 and together with the bottom shell 14 defines a cavity for receiving the lever 20.

[0096] Figure 7 for Figure 6 A partial perspective structural diagram of the backup device in the illustrated embodiment. See also: [illustration details in the original text] Figure 8 As shown, the input opening 11 and the output opening 12 can be disposed on the bottom shell 14. Alternatively, in some embodiments, the input opening 11 and the output opening 12 can be disposed on the cover plate 15. Or, in some embodiments, one of the input opening 11 and the output opening 12 is disposed on the bottom shell 14 and the other is disposed on the cover plate 15.

[0097] The specific structure of the input opening 11 is not limited here. For example, in some embodiments, the input opening 11 can be a circular opening. Or in some examples, the input opening 11 can also be a rectangular opening.

[0098] The specific structure of the output opening 12 is not limited here. For example, in some embodiments, the output opening 12 can be a circular opening. Or in some examples, the output opening 12 can also be a rectangular opening.

[0099] See also the following for some possible implementations. Figure 7 As shown, the input opening 11 is located on one side wall of the housing 10, and the two output openings 12 are located on the other side wall of the housing 10. One side wall of the housing 10 and the other side wall of the housing 10 are positioned opposite each other, and the lever 20 is located between the two side walls of the housing 10. This arrangement ensures that the lever 20 is connected to the pedal mechanism 410 via the transmission member 30 and can be connected to both braking devices 300 respectively, thus ensuring that when the lever 20 receives braking force from the pedal, it transmits braking force to both braking devices 300 respectively.

[0100] See also Figure 7 As shown, the two output openings 12 can be along the height direction of the housing 10 (e.g., Figure 7 The height is set at the same level as the Z-direction, and along the thickness direction of the housing 10 (e.g., in the Z-direction). Figure 7 The two output openings 12 are spaced apart in the Y direction. The distance between the two output openings 12 in the width direction of the housing 10 can be determined according to the size of the lever 20, and is not limited here. In addition, the shapes of the two output openings 12 can be the same or different. For example, in some embodiments, both output openings 12 can be circular openings.

[0101] Of course, in addition to being located on the same side wall of the housing 10, in some possible implementations, the input opening 11 is located on one side wall of the housing 10, and the two output openings 12 are respectively located on the other two side walls of the housing 10. The other two side walls of the housing 10 are arranged opposite each other and are respectively connected to one side wall of the housing 10. The lever 20 is located between the other two side walls of the housing 10. This arrangement allows control over the orientation of the transmission member 40 connecting the backup device 200 and the braking device 300, which helps reduce the difficulty of arranging the electromechanical braking device 100 in the vehicle 400. It is understood that the two output openings 12 can be arranged opposite each other or not opposite each other, and this is not limited here.

[0102] See also the following for some possible implementations. Figure 7As shown, the lever 20 in this embodiment may include a return member 60 and a rod-shaped member 70. The lever 20 is disposed inside the housing 10, and the rod-shaped member 70 is used to drively connect the two braking devices 300 and the transmission member 30. The return member 60 is used to restore the movement of the rod-shaped member 70 relative to the housing 10 caused by the pedal braking force. The pedal braking force output by the pedal mechanism 410 is transmitted to the two braking devices 300 respectively through the transmission member 30 and the rod-shaped member 70. By employing a lever 20 with this structure, it can be ensured that when the backup device 200 repeatedly receives the pedal braking force, it can still transmit braking force to the two braking devices 300 respectively, thereby improving the reliability of the electromechanical braking device 100.

[0103] In this application, the specific structure of the return member 60 is not limited. For example, in some embodiments, see below. Figure 7 As shown, the return member 60 may include a torsion spring, which may include a main body 61 and two mating parts 62. The main body 61 has a hollow structure, and its opposite ends are respectively connected to the two mating parts 62. Correspondingly, one side wall of the rod-shaped member 70 includes an insertion part (not shown in the figure), which is disposed within the main body 61, and the axis of the insertion part is parallel to the axis of the main body 61. One of the mating parts 62 abuts against the other side wall of the rod-shaped member 70, and the other mating part 62 is connected to the inner wall of the housing member 10. The rod-shaped member 70 has one side wall connected to the other side wall.

[0104] Alternatively, in some embodiments, the return member 60 may include a coil spring (not shown), with its two ends connected to one end of the rod-shaped member 70 and the inner wall of the housing member 10, respectively. When the pedal mechanism 410 does not output pedal braking force, the coil spring can drive the rod-shaped member 70 back from its current position to its initial position.

[0105] Alternatively, in some embodiments, the return member 60 may include an elastic member (not shown) and a mounting member (not shown), with one end of the elastic member connected to the outer wall of the rod-shaped member 70 and the other end connected to the mounting member. The mounting member is fixedly connected to the inner wall of the housing member 10. Using such a structure for the return member 60 increases the range within which it can be arranged inside the housing member 10, helping to reduce the difficulty of arranging the return member 60.

[0106] It is understood that when the transmission member 30 receives the pedal braking force, the movement of the rod-shaped member 70 can be translational, rotational, or other forms, and this is not limited here. For example, in some embodiments, when the transmission member 30 receives the pedal braking force, it drives the rod-shaped member 70 to rotate. Therefore, the rod-shaped member 70 is movably connected relative to the inner wall of the housing member 10.

[0107] In this embodiment, the specific manner in which the rod-shaped member 70 is movably connected to the inner wall of the housing member 10 is not limited. The rod-shaped member 70 may be movably connected to the inner wall of the housing member 10 via the return member 60, or the rod-shaped member 70 may also be movably connected to the inner wall of the housing member 10.

[0108] In some possible implementations, the middle portion of the rod-shaped member 70 can be rotatably connected to the housing member 10, one end of the rod-shaped member 70 is drive-connected to the transmission member 30, and the other end of the rod-shaped member 70 is connected to the two braking devices 300 respectively. With this configuration, when the transmission member 30 receives the pedal braking force, the transmission member 30 can push the rod-shaped member 70 to rotate, thereby transmitting the braking force to the two braking devices 300 respectively through the rod-shaped member 70.

[0109] Figure 8 This is a three-dimensional structural diagram of the first type of connector provided in the embodiments of this application, which connects the transmission member and the rod-shaped member. Figure 9 for Figure 8 An exploded view of a first type of connector in the illustrated embodiment. See also, in some embodiments, [reference needed]. Figures 7-9 As shown, the middle portion of the rod-shaped member 70 may include a rotating hole 74. The backup device 200 may also include a rotating shaft 90, which is disposed within the rotating hole 74, and its two ends are respectively connected to two opposite side walls of the housing member 10. Through the rotating shaft 90 and the rotating hole 74, the middle portion of the rod-shaped member 70 can be rotatably connected to the housing member 10.

[0110] See also Figure 7 As shown, when the return member 60 includes a torsion spring, the main body 61 of the torsion spring can be sleeved on the outer wall of one end of the rotating shaft 90. In other words, functionally, the rotating shaft 90 can also be equivalent to the insertion part of the rod-shaped member 70. This arrangement helps to simplify the structure of the rod-shaped member 70.

[0111] It is understood that the specific shape of the rod-shaped member 70 is not limited here. For example, in some examples, the rod-shaped member 70 can be a polygonal plate-like structure. Exemplarily, the rod-shaped member 70 can be a rectangular plate with a rotating hole 74 in the middle.

[0112] However, the rod-shaped member 70 is rotatably connected to the inner wall of the housing member 10 via the rotating shaft 90. Figure 10 A cross-sectional view of a second type of rod-shaped member provided in an embodiment of this application. See also, in some embodiments, [the following text is missing]. Figure 10As shown, the rod-shaped member 70 may also include a lever plate portion 75 and a pivot portion 76. One end of the lever plate portion 75 is connected to the transmission member 30, and the other end is connected to the two braking devices 300. The pivot portion 76 may be disposed on the side wall of the middle portion of the lever plate portion 75, with its axis perpendicular to the lever plate portion 75. One end of the pivot portion 76 is connected to the side wall of the lever plate portion 75, and the other end is rotatably connected to the inner wall of the housing member 10. It is understood that with the rod-shaped member 70, which uses the pivot portion 76 and the lever plate portion 75 as an integral structure, the pedal braking force output by the pedal mechanism 410 is transmitted to the two braking devices 300 through the transmission member 30 and the lever plate portion 75 respectively.

[0113] However, the pivot portion 76 is provided on the side wall of the lever plate portion 75. Figure 11 A cross-sectional view of a third type of rod-shaped member provided in an embodiment of this application. See also, in some embodiments, [the following text is missing]. Figure 11 As shown, the lever plate portion 75 can also be sleeved on the outer wall of the middle part of the pivot portion 76. The two ends of the pivot portion 76 are rotatably connected to the two opposite side walls of the housing part 10, and the pivot portion 76 is located in the middle part of the lever plate portion 75.

[0114] The specific shape of the lever plate portion 75 is not limited here. For example, the shape of the lever plate portion 75 may be a rectangle, an isosceles trapezoid, a right trapezoid, etc.

[0115] It is understandable that when the return member 60 includes a torsion spring, the main body 61 of the torsion spring can be sleeved on the outer wall of the pivot 76, and the pivot 76 can also be used as an insertion part.

[0116] See also the following for some possible implementations. Figure 7 and Figure 8 As shown, the housing 10 may include a limiting part 13, which is disposed inside the housing 10 and used to abut against the outer wall of the rod 70. This limiting part 13 positions the rod 70 relative to the housing 10 when the rod 70 moves due to the return member 60, ensuring that the rod 70 can return from its current position to its initial position.

[0117] In this application embodiment, the specific structure of the limiting part 13 is not limited. For example, in some embodiments, such as Figure 7 and Figure 8As shown, the outer wall of the rod-shaped member 70 may include a limiting notch 77 facing the limiting portion 13. The limiting portion 13 is used to abut against the inner wall of the limiting notch 77. Alternatively, in some embodiments, the limiting portion 13 may include a limiting groove (not shown) facing the rod-shaped member 70, and the outer wall of the rod-shaped member 70 may include a limiting block (not shown) for insertion into the limiting groove. The relative position of the rod-shaped member 70 and the housing member 10 can be positioned by the abutment between the limiting block and the inner wall of the limiting groove.

[0118] In some embodiments, such as Figure 7 As shown, when the return member 60 includes a torsion spring, the side wall of the limiting part 13 may include a mating hole 131. One of the mating holes 131 of the torsion spring is movably disposed within the mating hole 131, thereby connecting the torsion spring with the inner wall of the housing member 10. This arrangement helps to simplify the structure of the housing member 10 and can increase the application range of the limiting part 13.

[0119] See also the following for some possible implementations. Figure 7 and Figure 8 As shown, the backup device 200 may further include two transmission members 40. One transmission member 40 connects one braking device 300 and the lever member 20 through an output opening 12, and the other transmission member 40 connects another braking device 300 and the lever member 20 through another output opening 12. Through the two transmission members 40, the backup device 200 can transmit braking force to both braking devices 300 respectively when it receives pedal braking force, thus allowing the two braking devices 300 to serve as backups for each other, thereby improving the reliability of the electromechanical braking device 100.

[0120] like Figure 7 As shown, since the lever 20 includes a rod-shaped member 70 and a return member 60, one end of each of the two transmission members 40 is connected to the other end of the lever 20, and the other end of each of the two transmission members 40 is connected to the two braking devices 300.

[0121] like Figure 8 As shown, one end of each of the two transmission members 40 can be disposed on opposite sides of the rod-shaped member 70 in a direction perpendicular to the axial direction of the rod-shaped member 70, and one end of each of the two transmission members 40 is connected to two opposite sidewalls of the other end of the rod-shaped member 70. This is achieved by disposing the two transmission members 40 on the same side of the rod-shaped member 70.

[0122] In this embodiment, the specific connection method between the rod-shaped member 70 and the transmission member 40 is not limited. Furthermore, the rod-shaped member 70 and the transmission member 40 can be movably connected or fixedly connected.

[0123] See also some possible implementations. Figure 8 and Figure 9As shown, the other end of the rod-shaped member 70 may include a connecting hole 71, and the backup device 200 may include a rod-shaped connecting member 80. The axis of the connecting member 80 is perpendicular to the axis of the rod-shaped member 70, and the connecting member 80 is movably disposed within the connecting hole 71. One end of each of the two transmission members 40 is connected to the opposite ends of the connecting member 80, and the rod-shaped member 70 is located between the two transmission members 40. This arrangement allows the rod-shaped member 70 to be connected to each of the two transmission members 30, thereby enabling the backup device 200 to transmit braking force to each of the two braking devices 300 upon receiving pedal braking force.

[0124] The specific structure of connector 80 is not limited here. For example, in some possible implementations, such as... Figure 9 As shown, the connector 80 may include a connecting pin 81 and a connecting nut 82. The connecting pin 81 is disposed within the connecting hole 71, and one end of each of the two transmission members 40 is respectively sleeved on the outer wall of opposite ends of the connecting pin 81. Axially, one end of the connecting pin 81 abuts against the side wall of one transmission member 40. The connecting nut 82 is sleeved on the outer wall of the other end of the connecting pin 81 and is fixedly connected to it. Axially, the connecting nut 82 abuts against the side wall of the other transmission member 40. With this structure, the connector 80 allows the two transmission members 40 to be connected to the rod-shaped member 70 respectively, and the two transmission members 40 to be located on opposite sides of the rod-shaped member 70. Furthermore, the two transmission members 40 being located at both ends of the connecting pin 81 ensures force balance and prevents bending moments along the axial direction of the connecting pin 81.

[0125] It is understood that the connecting pin 81 may include a shaft portion and a nut portion. The axes of the shaft portion and the nut portion coincide, and the outer diameter of the shaft portion is smaller than the outer diameter of the nut portion, thus the shaft portion and the nut portion together define a step for abutting against the transmission member 40. The shaft portion passes through the connecting hole 71, and the other end of the shaft portion away from the nut portion is used for threaded connection with the connecting nut 82. It is understood that the radial cross-section of the connecting pin 81 formed by the shaft portion and the nut portion can be a "T"-shaped structure, with the vertical end of the "T" shape being the shaft portion and the horizontal end of the "T" shape being the nut portion.

[0126] Understandably, when one end of the transmission member 40 is fitted onto the outer wall of the connecting pin 81, the other end of the transmission member 40 can be movably connected to the outer wall of the connecting pin 81. Therefore, during the transmission of braking force to the braking device 300, the transmission member 40 can rotate around the connecting pin 81, thereby reducing the wear of the transmission member 40.

[0127] Figure 12 A cross-sectional view of a second type of connector provided in this application, connecting the transmission member and the rod-shaped member. Alternatively, see some possible implementations. Figure 12 As shown, the connector 80 may also include a connecting rod 83. The connecting rod 83 is disposed within the connecting hole 71, with its two ends respectively close to two opposite sidewalls of the housing 10. One end of each of the two transmission members 40 is sleeved on the opposite ends of the connecting rod 83. One end of one transmission member 40 is located between the rod-shaped member 70 and one sidewall of the housing 10, and the other end of the transmission member 40 is located between the rod-shaped member 70 and the other sidewall of the housing 10. One sidewall of the housing 10 and the other sidewall of the housing 10 are arranged opposite each other. With this structure, the connector 80 allows the rod-shaped member 70 to be connected to both transmission members 40, thereby transmitting braking force to the two braking devices 300 respectively.

[0128] like Figure 12 As shown, in the axial direction of the connecting rod 83, there are gaps between the opposite ends of the connecting rod 83 and the two opposite sidewalls of the housing 10. It can be understood that the gap between each end face of the connecting rod 83 and one sidewall of the housing 10 is less than the thickness of one end of the transmission member 40, ensuring that one end of the transmission member 40 is always fitted onto the outer wall of the connecting rod 83. In other words, when one end of each transmission member 40 moves axially along the connecting rod 83, it is restricted by the rod-shaped member 70 and one sidewall of the housing 10, ensuring that one end of the transmission member 40 is always located on the outer wall of the connecting rod 83.

[0129] However, in addition to the gap, there is a gap between the connecting rod 83 and the side wall of the housing 10. Figure 13 A cross-sectional view of a housing member with a receiving groove mating with a second type of connector, provided in an embodiment of this application. In some embodiments, such as Figure 13 As shown, each of the two opposing sidewalls of the housing 10 that mate with the opposite ends of the connecting rod 83 may include a receiving groove 16 for inserting one end of the connecting rod 83.

[0130] It should be noted that the connecting rod 83 and the rod-shaped member 70 can be fixedly connected or movably connected, without limitation. Furthermore, the cross-section of the connecting rod 83 can be circular, polygonal, or other shapes. The cross-section of the connecting rod 83 is perpendicular to its axis. For example, the connecting rod 83 can be a circular rod. Additionally, the connecting rod 83 and one end of the transmitting member 40 can be movably connected or fixedly connected, without limitation.

[0131] In the above description, the rod-shaped member 70 is connected to one end of each of the two transmission members 40 via the connector 80. However, in some embodiments, the rod-shaped member 70 may also be connected to one end of each of the two transmission members 40 individually. In other words, the rod-shaped member 70 has a structure that connects to one end of each of the two transmission members 40. Figure 14A cross-sectional view showing the fourth type of rod-shaped member and transmission member mating as provided in this application embodiment. For example, in some possible implementations, such as... Figure 14 As shown, the rod-shaped member 70 may include a plate-shaped portion 72 and a rod-shaped portion 73. One end of the plate-shaped portion 72 is used to connect with the transmission member 30, and the plate-shaped portion 72 is sleeved on the outer wall of the middle portion of the rod-shaped portion 73. The axis of the rod-shaped portion 73 is perpendicular to the length direction of the plate-shaped portion 72. One end of each of the two transmission members 40 is connected to the opposite ends of the rod-shaped portion 73, and one end of each transmission member 40 is located on opposite sides of the plate-shaped portion 72. Therefore, even with an integral rod-shaped member 70, the rod-shaped member 70 can be connected to the two transmission members 40.

[0132] The specific structure of the rod-shaped portion 73 is not limited here. The cross-section of the rod-shaped portion 73 can be circular, polygonal, or other shapes. The cross-section of the rod-shaped portion 73 is perpendicular to its axis.

[0133] In this embodiment, the rod-shaped portion 73 can be movably or fixedly connected to one end of the transmission member 40. For example, in some embodiments, one end of the transmission member 40 may include a movable hole, the cross-section of the rod-shaped portion 73 may be circular, and one end of the rod-shaped portion 73 is disposed in the corresponding movable hole of the transmission member 40 and movably connected to the transmission member 40.

[0134] The specific shape of the plate-shaped portion 72 is not limited here. For example, the plate-shaped portion 72 may be waist-shaped, elliptical, polygonal, or the like.

[0135] In the above description, one end of each of the two transmission members 40 is located on opposite sides of the rod-shaped member 70. However, one end of each of the two transmission members 40 can also be located on the same side of the rod-shaped member 70. The following explains how the rod-shaped member 70 is connected to one end of each of the two transmission members 40 when one end of each of the two transmission members 40 is located on the same side of one end of the rod-shaped member 70.

[0136] Figure 15 This is a schematic diagram showing the structure of two transmission components located on the same side of a rod-shaped member via a first type of connector, as provided in an embodiment of this application. See also the following for some possible implementations. Figure 15 As shown, the other end of the rod-shaped member 70 may include a connecting hole 71, and the backup device 200 may include a connecting member 80 with a rod-shaped structure. The axis of the connecting member 80 is perpendicular to the axis of the rod-shaped member 70, and the connecting member 80 is disposed within the connecting hole 71. One end of each of the two transmission members 40 is respectively sleeved on the outer wall of the connecting member 80, and one end of each transmission member 40 is arranged side by side along the axis of the connecting member 80 and located between the rod-shaped member 70 and the end of the connecting member 80 away from the rod-shaped member 70.

[0137] It is understood that the connector 80 can be movably or fixedly connected to each of the two transmission members 40, and there are no restrictions here. In addition, the connector 80 can be a connector 80 composed of the connecting pin 81 and the connecting nut 82 as described above, or a connector 80 composed of the connecting rod 83.

[0138] When the connector 80 includes a connecting nut 82 and a connecting pin 81, such as Figure 15 As shown, one end of the connecting pin 81 is disposed in the connecting hole 71 and threadedly connected to the connecting nut 82, and the rod-shaped member 70 is located between the connecting nut 82 and the other end of the connecting pin 81. Two transmission members 40 are respectively sleeved on the outer wall of the connecting pin 81 and located between the rod-shaped member 70 and the other end of the connecting pin 81.

[0139] Figure 16 This is a schematic diagram illustrating the structure of two transmission components located on the same side of a rod-shaped member via a second type of connector, as provided in an embodiment of this application. Figure 16 As shown, when the connector 80 includes a connecting rod 83, one end of the connecting rod 83 is disposed in the connecting hole 71 and fixedly connected to the rod-shaped member 70, and the two transmission members 40 are respectively sleeved on the outer wall of the other end of the connecting rod 83 and connected to the other end of the connecting rod 83. The other end of the connecting rod 83 is close to one side wall of the housing member 10.

[0140] Of course, the two transmission members 40 are located on the same side of the rod-shaped member 70 via the connector 80. Figure 17 This is a schematic diagram illustrating the fifth type of rod-shaped member cooperating with two transmission members, as provided in an embodiment of this application. In some possible implementations, such as... Figure 17 As shown, the rod-shaped member 70 may include a plate-shaped portion 72 and a rod-shaped portion 73. One end of the plate-shaped portion 72 is used to connect to the transmission member 30. The rod-shaped portion 73 is disposed on the side wall of the other end of the plate-shaped portion 72, with one end connected to the plate-shaped portion 72 and the other end away from the plate-shaped portion 72. The axis of the rod-shaped portion 73 is perpendicular to the length direction of the plate-shaped portion 72. One end of each of the two transmission members 40 is connected to the rod-shaped portion 73 and stacked along the axial direction of the rod-shaped portion 73, with the two transmission members 40 located on the same side of the plate-shaped portion 72. With this arrangement, the rod-shaped member 70 can be connected to the two transmission members 40, thereby allowing the pedal braking force output by the pedal structure to be transmitted to the two braking devices 300 respectively through the rod-shaped member 70.

[0141] The rod-shaped portion 73 can be movably or fixedly connected to one end of the two transmission members 40, without limitation. For example, in some embodiments, when one end of the transmission member 40 is movably connected to the rod-shaped portion 73, one end of the transmission member 40 may include a circular movable hole. Correspondingly, the cross-section of the rod-shaped portion 73 can be circular, and the cross-section of the rod-shaped portion 73 is perpendicular to the axis of the rod-shaped portion 73. The rod-shaped portion 73 is sequentially disposed in the movable holes of the two transmission members 40, and the end of the rod-shaped portion 73 away from the plate-shaped portion 72 is close to one side wall of the housing member 10.

[0142] However, one end of the two transmission members 40 is stacked in a direction perpendicular to the axial direction of the rod-shaped member 70. Figure 18 This is a schematic diagram illustrating the structure of two transmission components disposed on the same side wall of a rod-shaped member, as provided in an embodiment of this application. In some possible implementations, such as... Figure 18 As shown, one end of each of the two transmission members 40 is disposed on the same side wall of the other end of the rod-shaped member 70, and one end of each of the two transmission members 40 is connected to the rod-shaped member 70. The connection between the rod-shaped member 70 and one end of the transmission member 40 is described above, and therefore will not be repeated here.

[0143] In this embodiment, the specific structure of the transfer member 40 is not limited. For example, in some possible implementations, such as... Figure 8 and Figure 9 As shown, each transmission component 40 may include a transmission head 41 and a transmission cable 42. The transmission head 41 has a hollow structure and is sleeved on the outer wall of the other end of the rod-shaped component 70 and movably connected to the rod-shaped component 70. One end of the transmission cable 42 is fixedly connected to the outer wall of the transmission head 41, and the other end of the transmission cable 42 is used to connect to the braking device 300. Because the transmission head 41 is movably connected to the other end of the rod-shaped component 70, the transmission head can rotate relative to the rod-shaped component 70, thereby preventing the transmission cable 42 from bending, reducing wear on the transmission cable 42, and thus improving the service life of the transmission component 40.

[0144] Understandably, each transmission cable 42 connects to the lever 20 and a braking device 300 through an output opening 12. The transmission cable 42 is movably inserted into the output opening 12, with one end of the transmission cable 42 located inside the housing 10 and movably connected to the other end of the transmission member 40, and the other end of the transmission cable 42 located outside the housing 10 and connected to a braking device 300.

[0145] It is understood that the specific structure of the movable connection between the rod-shaped member 70 and the transmission head 41 can be determined according to the structure of the rod-shaped member 70. For example, in some embodiments, when the rod-shaped member 70 is connected to the transmission member 40 through the connector 80, the transmission head 41 is sleeved on the outer wall of the connector 80 and movably connected to the connector 80, thereby one end of the transmission member 40 is movably connected to the rod-shaped member 70. Or in some embodiments, the transmission head 41 is sleeved on the outer wall of the rod-shaped portion 73 of the rod-shaped member 70 and movably connected to the rod-shaped portion 73 (see...). Figure 14 (As shown).

[0146] See also the following for some possible implementations. Figure 7 As shown, the housing 10 may further include two output seals 50, each corresponding to one of the two transmission components 40. Each output seal 50 is hollow and is fitted onto and movably connected to its corresponding transmission component 40. One end of each output seal 50 is fixedly connected to the housing 10 and communicates with an output opening 12, while the other end extends axially along the transmission component 40. Without affecting the transmission of braking force by the transmission component 40, the static sealing of the output opening 12 by the output seals 50 prevents water, dust, and other external contaminants from entering the housing 10. This, in turn, prevents wear, failure, and fatigue damage to the lever component 20 and the transmission component 30, thus improving the service life and reliability of the backup device 200.

[0147] In this embodiment, the specific structure of the output seal 50 is not limited. For example, in some embodiments, such as... Figure 7 As shown, the output seal 50 may include an output connecting pipe 51 and an output sealing pipe 52. One end of the output connecting pipe 51 is disposed inside the output opening 12 and threadedly connected to the housing 10, while the other end of the output connecting pipe 51 extends axially along the transmission member 40. The output sealing pipe 52 is respectively sleeved on the other end of the transmission member 40 and the output connecting pipe 51, and the output sealing pipe 52 is threadedly connected to the output connecting pipe 51. With this structure, the output seal 50, while sealing the output opening 12, can adjust the length of the transmission member 40 outside the housing 10 by adjusting the axial length of the threaded connection between the output sealing pipe 52 and the output connecting pipe 51, thereby compensating for cable travel errors in actual operating conditions.

[0148] When the transmission member 40 connects the lever member 20 and the braking device 300, the transmission cable 42 of the transmission member 40 may be bent. To control the direction of the output cable, in some embodiments, the output sealing tube 52 may include a hollow connecting section and a deformation section. The connecting section is used for threaded connection to the other end of the output connecting tube 51. The deformation section is used to abut against the body of the vehicle 400 and extends along the axis of the transmission member 40, and can deform as the transmission cable 42 bends, thereby ensuring a static seal effect on the output opening 12.

[0149] In the embodiments of this application, the specific structure of the transmission component 30 is not limited. Figure 19 This is a schematic diagram illustrating the structure of a transmission component and a lever component cooperating, provided as an embodiment of this application. For example, in some possible implementations, see [link to relevant documentation]. Figure 7 and Figure 19 As shown, the transmission component 30 may include a transmission rod 31 and a transmission gear 32. One end of the transmission rod 31 is connected to the output end of the pedal mechanism 410 through an input opening 11, and the axis of the transmission rod 31 is parallel to the length direction of the transmission gear 32. The transmission gear 32 is disposed on the inner wall of the housing 10 and is movably connected to the inner wall of the housing 10. The driven rack portion of the transmission gear 32 meshes with the driving rack portion of the transmission rod 31. One end of the transmission gear 32 contacts the outer wall of the lever 20. When the transmission rod 31 receives the pedal braking force, the transmission rod 31 moves along its axial direction and pushes the lever 20 itself. The lever 20 then drives the transmission component 40 to move, causing the braking device 300 to receive the braking force.

[0150] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0151] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0152] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0153] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects; in formulas, the character " / " indicates a "division" relationship between the preceding and following related objects.

[0154] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

Claims

1. An electromechanical braking device, characterized in that, It includes a backup device and two braking devices, each of which is used to brake at least one wheel of the vehicle. The electromechanical braking device has two operating modes: a main braking mode and a secondary braking mode, wherein: When the electromechanical braking device is operating in the main braking mode, the two braking devices are used to receive the electromechanical power output by the brake motor. When the electromechanical braking device is operating in the secondary braking mode, the backup device is used to receive the pedal braking force output by the vehicle's pedal mechanism and transmit the braking force to the two braking devices respectively. The backup device includes a housing, a lever, and a transmission component. The lever is disposed inside the housing, and the transmission component is used to drive the lever and the pedal mechanism. The lever component includes a rod-shaped member, the middle portion of which is rotatably connected to the housing component. One end of the rod-shaped member is drively connected to the transmission component, and the other end of the rod-shaped member is connected to the two braking devices respectively. The rod-shaped member is used for transmission connection between the two braking devices and the transmission member. The pedal braking force output by the pedal mechanism is transmitted to the two braking devices through the transmission member and the rod-shaped member respectively.

2. The electromechanical braking device according to claim 1, characterized in that, The housing component includes an input opening and two output openings, which are used to connect the outside and the inside of the housing component, respectively. The transmission component is connected to the pedal mechanism through the input opening, and the lever component is connected to the two braking devices through the two output openings, respectively. The pedal braking force output by the pedal mechanism is transmitted to the two braking devices through the transmission component and the lever component, respectively.

3. The electromechanical braking device according to claim 2, characterized in that, The input opening is located on one side wall of the housing, and the two output openings are located on the other side wall of the housing. One side wall of the housing and the other side wall of the housing are opposite to each other, and the lever is located between the two side walls of the housing; or... The input opening is located on one side wall of the housing component, and the two output openings are respectively located on the other two side walls of the housing component. The other two side walls of the housing component are arranged opposite to each other and are respectively connected to one side wall of the housing component. The lever is located between the other two side walls of the housing component.

4. The electromechanical braking device according to claim 2 or 3, characterized in that, The backup device includes two transmission components, wherein: One of the transmission components is connected to one of the braking devices and the lever component through one of the output openings; Another of the transmission components is connected to another of the braking devices and the lever component through another of the output openings.

5. The electromechanical braking device according to claim 4, characterized in that, The housing component includes two output seals, wherein: Each of the output seals has a hollow structure. The two output seals correspond one-to-one with the two transmission components. Each output seal is sleeved on the corresponding transmission component and is movably connected to the transmission component. One end of each output seal is fixedly connected to the housing component and communicates with one of the output openings. The other end of each output seal extends along the axial direction of the transmission component.

6. The electromechanical braking device according to claim 1, characterized in that, The lever also includes a return mechanism, wherein: The return member is used to restore the movement of the rod-shaped member relative to the housing member caused by the pedal braking force.

7. The electromechanical braking device according to claim 6, characterized in that, The housing component includes a limiting portion disposed inside the housing component and used to abut against the outer wall of the rod-shaped component, so as to position the relative position of the rod-shaped component and the housing component when the rod-shaped component moves due to the return component.

8. The electromechanical braking device according to any one of claims 6 to 7, characterized in that, The backup device includes two transmission components, wherein: One end of each of the two transmission components is disposed on opposite sides of the rod-shaped member along a direction perpendicular to the axial direction of the rod-shaped member, and is connected to the other end of the rod-shaped member, respectively; the other ends of the two transmission components are respectively connected to the two braking devices; or, One end of each of the two transmission components is disposed on the same side of the rod-shaped member in a direction perpendicular to the axial direction of the rod-shaped member and is connected to the other end of the rod-shaped member. The other ends of the two transmission components are respectively connected to the two braking devices.

9. The electromechanical braking device according to claim 8, characterized in that, The other end of the rod-shaped member includes a connecting hole, and the backup device includes a rod-shaped connector, the axis of which is perpendicular to the axial direction of the rod-shaped member, wherein: The connector is movably disposed within the connecting hole, one end of each of the two transmission members is connected to the opposite ends of the connector, and the rod-shaped member is located between the two transmission members.

10. The electromechanical braking device according to claim 9, characterized in that, The connector includes a connecting pin and a connecting nut. The connecting pin is disposed within the connecting hole. One end of each of the two transmission components is respectively sleeved on opposite ends of the connecting pin. One end of the connecting pin abuts against the side wall of one of the transmission components. The connecting nut is sleeved on the other end of the connecting pin and fixedly connected to it. The connecting nut abuts against the side wall of the other transmission component; or... The connector includes a connecting rod disposed within the connecting hole. The two ends of the connecting rod are respectively close to two opposite side walls of the housing component. One end of each of the two transmission components is sleeved on the opposite ends of the connecting rod. One end of one transmission component is located between the rod-shaped component and one side wall of the housing component, and one end of the other transmission component is located between the rod-shaped component and another side wall of the housing component. One side wall of the housing component and the other side wall of the housing component are opposite to each other.

11. The electromechanical braking device according to claim 8, characterized in that, The other end of the rod-shaped member includes a connecting hole. The backup device includes a rod-shaped connector, the axis of which is perpendicular to the axis of the rod-shaped member. The connector is disposed within the connecting hole. One end of each of the two transmission members is respectively sleeved on the outer wall of the connector and located between the rod-shaped member and the end of the connector furthest from the rod-shaped member; or, One end of each of the two transmission components is disposed on the same side wall of the other end of the rod-shaped component and is connected to the rod-shaped component respectively.

12. The electromechanical braking device according to claim 8, characterized in that, The rod-shaped member includes a plate-shaped portion and a rod-shaped portion. One end of the plate-shaped portion is used to connect with the transmission member. The plate-shaped portion is sleeved on the outer wall of the middle part of the rod-shaped portion. The axis of the rod-shaped portion is perpendicular to the length direction of the plate-shaped portion. One end of the two transmission members is respectively connected to the opposite ends of the rod-shaped portion and is located on opposite sides of the plate-shaped portion; or... The rod-shaped member includes a plate-shaped portion and a rod-shaped portion. One end of the plate-shaped portion is used to connect with the transmission member. The rod-shaped portion is disposed on the side wall of the other end of the plate-shaped portion. The axis of the rod-shaped portion is perpendicular to the length direction of the plate-shaped portion. One end of each of the two transmission members is connected to the rod-shaped portion and is located on the same side of the plate-shaped portion.

13. The electromechanical braking device according to claim 8, characterized in that, Each of the aforementioned transfer components includes a transfer head and a transfer cable, wherein: The transmission head has a hollow structure. The transmission head is sleeved on the outer wall of the other end of the rod-shaped member and is movably connected to the rod-shaped member. One end of the transmission cable is fixedly connected to the outer wall of the transmission head, and the other end of the transmission cable is used to connect to the braking device.

14. A vehicle, characterized in that, Includes a pedal mechanism, wheels, and an electromechanical braking device as described in any one of claims 1 to 13; The backup device of the electromechanical braking device is connected to the pedal mechanism, and the braking device of the electromechanical braking device is used to brake the wheel.

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