Electromechanical brake device for split body and vehicle

Abstract

The application provides an electronic mechanical brake device with split caliper body and a vehicle. The electronic mechanical brake device comprises a driver and a brake. The driver comprises a brake motor and a speed reducer. The brake comprises a caliper body and a transmission assembly. The brake motor is configured to drive the transmission assembly through the speed reducer. The transmission assembly is configured to drive a friction plate. The caliper body comprises a body and an end cover. The body comprises a receiving cavity configured to accommodate the transmission assembly, and the end cover is configured to shield the receiving cavity. In the axial direction of the brake motor, a transmission member between the speed reducer and the transmission assembly passes through the end cover, and the brake motor, the end cover and the transmission assembly are arranged on the same side of the speed reducer. The electronic mechanical brake device splits the caliper body into the end cover and the body, thereby simplifying the processing difficulty of the caliper body and ensuring the overall precision and rigidity.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to an electromechanical braking device with a split clamp and a vehicle. Background Technology

[0002] Electro-mechanical brakes (EMBs) use a combination of an electric motor and a mechanical transmission mechanism to drive the brake. EMBs are characterized by their simple structure, rapid response, smooth load transmission, and lack of hydraulic lines, resulting in high transmission efficiency. EMBs can improve vehicle safety, handling, and comfort.

[0003] As the main load-bearing component of an electromechanical braking device, the clamp body serves two purposes: securing the brake motor and mechanical transmission mechanism, and connecting the brake friction pads. The clamp body has a relatively complex structure and requires high precision, resulting in significant manufacturing difficulties and high costs. Summary of the Invention

[0004] In a first aspect, this application provides an electromechanical braking device with a split-type clamp, including a driver and a brake. The driver includes a brake motor and a reducer. The brake includes a transmission assembly and a split-type clamp. The brake motor drives the transmission assembly through the reducer. The transmission assembly drives the friction pads. The clamp includes a body and an end cap, the end cap being detachably connected to the body. The body includes a receiving cavity for accommodating the transmission assembly, and the end cap shields the receiving cavity. Along the axial direction of the brake motor, a transmission member between the reducer and the transmission assembly passes through the end cap, and the brake motor, end cap, and transmission assembly are arranged on the same side of the reducer.

[0005] In this application, the electromechanical braking device separates the clamp body into two parts: the main body and the end cap. These parts are then assembled to form the clamp body structure. The main body can be machined from one side of the end cap to accommodate the transmission assembly, which reduces the machining difficulty and improves machining accuracy. Simultaneously, the transmission assembly can be installed from the side of the main body away from the friction plate, eliminating the need to reserve assembly clearance for the transmission assembly on the side of the main body closest to the friction plate, thus facilitating assembly. Furthermore, the overall rigidity of the clamp body can be ensured through the configuration of the end cap's connecting parts.

[0006] In one embodiment, the end cap is provided with a through hole extending along the axial direction of the brake motor, the through hole being used to avoid the transmission component between the reducer and the transmission assembly.

[0007] In this application, the input shaft and output shaft of the reducer are spaced apart along the direction of the arrangement of the transmission components of the brake motor and the brake. The input shaft is coaxially driven with the motor shaft of the brake motor, and the output shaft passes through the end cover and is coaxially driven with the transmission components of the brake. This can reduce the overall volume of the reducer and is beneficial to the miniaturization of the electromechanical braking device.

[0008] In one embodiment, the end cap includes an extension section. Along the axial direction of the brake motor, the extension section is received in a receiving cavity, and the end face of the extension section is used to limit the sliding distance of the transmission assembly toward the end cap within the receiving cavity.

[0009] In this application, the extension section can be used to assist in the reliable radial positioning of the end cap and the body, increasing the contact surface between the end cap and the body to improve the sealing effect. The extension section can also be used to limit the sliding distance of the transmission assembly toward the end cap.

[0010] In one embodiment, the brake includes a pressure sensor for detecting the pressure exerted by the transmission assembly on the end cap. Along the axial direction of the brake motor, the pressure sensor is located between the transmission assembly and the end cap, and the surface of the end cap facing the receiving cavity has a stepped hole for receiving and securing the pressure sensor.

[0011] In this application, the pressure sensor is placed on the side of the transmission assembly near the end cover, and the pressure sensor is housed and fixed using the stepped hole in the end cover. This simplifies the installation structure while realizing pressure detection and makes reasonable use of the internal space of the clamp body.

[0012] In one embodiment, the end cap includes a first mounting surface and a second mounting surface that are axially opposed to each other along the brake motor. The second mounting surface faces the reducer and has a third groove for avoiding the signal transmission line of the pressure sensor. The third groove extends radially along the brake motor.

[0013] In this application, the pressure sensor extends from the mounting surface between the driver housing and the end cover, which can shorten the routing length of the transmission line inside the electromechanical braking device and reduce the overall volume of the electromechanical braking device.

[0014] In one embodiment, the first mounting surface includes a first groove and a first seal, the first seal being embedded in the first groove to achieve a seal between the end cap and the body of the clamp. Alternatively, a second mounting surface and the housing of the driver are provided with a mutually cooperating second groove and a second seal, the second seal being embedded in the second groove to achieve a seal between the end cap and the housing of the driver.

[0015] In this application, the two opposite mounting surfaces of the end cap are respectively sealed to the housings of the body and the driver, which can achieve sealed protection inside the clamp body and between the clamp body and the driver.

[0016] In one embodiment, the body includes a recess for accommodating a brake motor. Along the axial direction of the brake motor, the recess of the recess is directed away from the reducer. Along the radial direction of the brake motor, the recess of the recess is directed towards the transmission assembly.

[0017] In this application, the clamp body is provided with a motor housing cavity for accommodating the brake motor, and the brake motor is offset relative to the end cover, which can compress the overall volume of the electromechanical braking device and save wheel end space. In one embodiment, along the axial direction of the brake motor, the brake motor and the transmission assembly are arranged on the same side of the reducer.

[0018] In this application, the brake motor, reducer, and transmission components of the brake are arranged to form a U-shaped structure. The driving force provided by the brake motor can be transmitted to the transmission components of the brake through a shorter transmission path, and the overall volume of the electromechanical braking device is reduced.

[0019] In one embodiment, the body includes two sliding connection holes for slidingly connecting the caliper bracket. The two sliding connection holes are arranged on both sides of the end cap along the radial direction of the brake motor. Along the arrangement direction of the two sliding connection holes, the projection of the brake motor overlaps the projection of the two sliding connection holes.

[0020] In one embodiment, the body includes two fixing holes for fixing the end cap and the reducer. The two fixing holes are arranged on both sides of the end cap along the radial direction of the brake motor. Along the arrangement direction of the two fixing holes, the projection of the brake motor does not cover the projection of either fixing hole.

[0021] In this application, the sliding connection holes of the caliper body relative to the frame and the fixed connection holes for fixing the caliper body to the reducer are arranged in different directions, which facilitates the assembly and connection of the caliper body to the frame and the reducer, respectively. The brake motor, the reducer, and the transmission components of the brake are arranged to form a U-shaped structure, so that the driving force provided by the brake motor can be transmitted to the transmission components of the brake through a shorter transmission path, and the overall volume of the electromechanical braking device is reduced.

[0022] Secondly, this application provides an electromechanical braking device, including a driver and a brake. The driver includes a brake motor and a reducer. The brake includes a clamp body and a transmission assembly. The brake motor drives the transmission assembly through the reducer. The transmission assembly drives a friction pad. The body of the clamp body includes a groove for accommodating the brake motor. Along the axial direction of the brake motor, the recessed direction of the groove faces away from the reducer. Along the radial direction of the brake motor, the recessed direction of the groove faces the transmission assembly.

[0023] In this application, the brake motor, reducer, and transmission components of the brake are arranged to form a U-shaped structure. The driving force provided by the brake motor can be transmitted to the transmission components of the brake through a shorter transmission path, and the overall volume of the electromechanical braking device is reduced.

[0024] In one embodiment, the clamp body includes an end cap and a body. The end cap is detachably connected to the body, and the body includes a receiving cavity for accommodating a transmission assembly. The end cap is used to shield the receiving cavity. Along the axial direction of the brake motor, a transmission component between the reducer and the transmission assembly passes through the end cap. The brake motor, end cap, and transmission assembly are arranged on the same side of the reducer.

[0025] In this application, the clamp body is divided into two parts: the main body and the end caps, which are assembled to form the clamp body structure. The main body can be machined from one side of the end caps to accommodate the transmission assembly, which reduces the machining difficulty of the main body and improves machining accuracy. Simultaneously, the transmission assembly can be installed from the side of the main body away from the friction plate, eliminating the need to reserve assembly clearance for the transmission assembly on the side of the main body closest to the friction plate, thus facilitating assembly. Furthermore, the overall rigidity of the clamp body can be ensured through the configuration of the end cap connectors.

[0026] In one embodiment, the body includes two sliding connection holes and two fixed connection holes. The two sliding connection holes are used for sliding connection of the caliper bracket, and the two fixed connection holes are used for fixed connection of the body and the end cap. Along the radial direction of the brake motor, the two sliding connection holes are respectively arranged on both sides of the end cap, and the two fixed connection holes are respectively arranged on both sides of the end cap. Along the arrangement direction of the two sliding connection holes, the projection of the brake motor overlaps the projection of the two sliding connection holes.

[0027] In one embodiment, the arrangement direction of the two fixed connecting holes intersects with the arrangement direction of the two sliding connecting holes. Along the arrangement direction of the two fixed connecting holes, the projection of the brake motor does not cover the projection of either fixed connecting hole.

[0028] In this application, the sliding connection holes of the caliper body relative to the frame and the fixed connection holes for fixing the caliper body to the reducer are arranged in different directions, which facilitates the assembly and connection of the caliper body to the frame and the reducer, respectively. The brake motor, the reducer, and the transmission components of the brake are arranged to form a U-shaped structure, so that the driving force provided by the brake motor can be transmitted to the transmission components of the brake through a shorter transmission path, and the overall volume of the electromechanical braking device is reduced.

[0029] Thirdly, this application provides a vehicle including wheels and an electromechanical braking device provided by any of the above-described implementations of the first or second aspect, wherein the axial direction of the brake motor is parallel to the rotation axis of the wheel.

[0030] The vehicle provided in this application uses the electromechanical braking device provided in the first or second aspect of this application for braking, and the cost of the vehicle is reduced accordingly while ensuring the braking effect. Attached Figure Description

[0031] Figure 1 A schematic diagram of the working scenario of the electromechanical braking device provided in the application embodiment;

[0032] Figure 2 This is a schematic diagram of the external structure of the electromechanical braking device provided in the embodiments of this application;

[0033] Figure 3 This is a schematic diagram of the external structure of the other side of the electromechanical braking device provided in the embodiment of this application;

[0034] Figure 4 A cross-sectional structural schematic diagram of the electromechanical braking device provided in the embodiments of this application;

[0035] Figure 5 This is a schematic diagram of the external structure of the electromechanical braking device provided in the embodiments of this application;

[0036] Figure 6 A cross-sectional structural schematic diagram of the electromechanical braking device provided in the embodiments of this application;

[0037] Figure 7 This is an exploded view of the electromechanical braking device provided in the embodiments of this application;

[0038] Figure 8 This is a schematic diagram of the external structure of the clamp body in the electromechanical braking device provided in the embodiments of this application;

[0039] Figure 9 A cross-sectional structural schematic diagram of a portion of the electromechanical braking device provided in the embodiments of this application;

[0040] Figure 10 This is an exploded structural diagram of the clamp body in the electromechanical braking device provided in the embodiments of this application;

[0041] Figure 11 A cross-sectional structural schematic diagram of a portion of the electromechanical braking device provided in the embodiments of this application;

[0042] Figure 12 A cross-sectional structural schematic diagram of a portion of the electromechanical braking device provided in the embodiments of this application;

[0043] Figure 13 This is a schematic diagram of the external structure of the end cap of the clamp body in the electromechanical braking device provided in the embodiments of this application;

[0044] Figure 14 This is a schematic diagram of the cross-sectional structure of the end cap of the clamp body in the electromechanical braking device provided in the embodiments of this application;

[0045] Figure 15 An exploded structural diagram of a portion of the electromechanical braking device provided in an embodiment of this application;

[0046] Figure 16 For this application Figure 12 A partial cross-sectional view of the electromechanical braking device provided in the embodiment shown at position A;

[0047] Figure 17 This is a schematic diagram of the internal structure of the electromechanical braking device provided in the embodiments of this application. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0049] The serial numbers assigned to components in this document, such as "first" and "second," are used solely to distinguish the described objects and have no sequential or technical meaning. The term "connection" in this application, unless otherwise specified, includes both direct and indirect connections. It should be understood that the terms "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are used only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above" or "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below" or "below" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] This application provides a split-type electromechanical braking device, comprising a driver and a brake. The driver includes a brake motor and a reducer, and the brake includes a transmission assembly and a split-type clamp body. The brake motor drives the transmission assembly via the reducer, and the transmission assembly drives the friction pads. The clamp body includes a body and an end cap, the end cap being detachably connected to the body. The body includes a receiving cavity for accommodating the transmission assembly, and the end cap shields the receiving cavity. Along the axial direction of the brake motor, a transmission component between the reducer and the transmission assembly passes through the end cap, and the brake motor, end cap, and transmission assembly are arranged on the same side of the reducer.

[0052] In this application, the electromechanical braking device separates the clamp body into two parts: the main body and the end cap. These parts are then assembled to form the clamp body structure. The main body can be machined from one side of the end cap to accommodate the transmission assembly, which reduces the machining difficulty and improves machining accuracy. Simultaneously, the transmission assembly can be installed from the side of the main body away from the friction plate, eliminating the need to reserve assembly clearance for the transmission assembly on the side of the main body closest to the friction plate, thus facilitating assembly. Furthermore, the overall rigidity of the clamp body can be ensured through the configuration of the end cap's connecting parts.

[0053] This application provides an electromechanical braking device, including a driver and a brake. The driver includes a brake motor and a reducer. The brake includes a clamp body and a transmission assembly. The brake motor drives the transmission assembly through the reducer. The transmission assembly drives a friction pad. The clamp body includes a groove for accommodating the brake motor. Along the axial direction of the brake motor, the recessed direction of the groove faces away from the reducer. Along the radial direction of the brake motor, the recessed direction of the groove faces the transmission assembly.

[0054] In this application, the brake motor, reducer, and transmission components of the brake are arranged to form a U-shaped structure. The driving force provided by the brake motor can be transmitted to the transmission components of the brake through a shorter transmission path, and the overall volume of the electromechanical braking device is reduced.

[0055] This application provides a vehicle including wheels and the aforementioned electromechanical braking device, wherein the two friction pads of the brake in the electromechanical braking device are arranged parallel to the rotation axis of the wheel brake disc. This application's vehicle reduces costs while maintaining braking performance.

[0056] Please refer to the following: Figure 1 - Figure 3 , Figure 1 This is a schematic diagram of the working scenario of the electromechanical braking device 100 provided in the embodiments of this application. Figure 2 This is a schematic diagram of the external structure of the electromechanical braking device 100 provided in the embodiments of this application. Figure 3 This is a schematic diagram of the external structure of the electromechanical braking device 100 provided in this embodiment. To clearly illustrate the internal functional structure of the electromechanical braking device 100, in... Figure 1 The electromechanical braking device 100 has omitted some structural components such as the housing, and in Figure 1 - Figure 3 The diagram only shows the partial structure at the position of wheel 1001 of vehicle 1000.

[0057] like Figure 1 - Figure 3As shown, the vehicle 1000 provided in this application embodiment includes a wheel 1001 and an electromechanical braking device 100. The electromechanical braking device 100 is fixed to the frame of the vehicle 1000 and is arranged corresponding to the position of the wheel 1001. The electromechanical braking device 100 is used to brake the wheel 1001.

[0058] In one embodiment, a brake disc 1002 is coaxially fixed to the wheel 1001, and the brake disc 1002 rotates synchronously with the wheel 1001 during vehicle 1000 operation. An electromechanical braking device 100 is fixed to the vehicle frame (not shown) and is positioned corresponding to the brake disc 1002. The electromechanical braking device 100 generates friction through contact with the brake disc 1002 to brake the brake disc 1002, and indirectly brakes the wheel 1001.

[0059] It should be noted that, in Figure 1 In the illustrated embodiment, only one wheel 1001 and one electromechanical braking device 100 are used as examples for illustrative purposes. In practical applications, some wheels or each wheel 1001 in the vehicle 1000 may be equipped with an electromechanical braking device 100.

[0060] Please combine Figure 2 and Figure 3 See also Figure 4 , Figure 4 This is a cross-sectional structural schematic diagram of the electromechanical braking device 100 provided in an embodiment of this application. (See attached diagram.) Figure 2 - Figure 4 As shown, the electromechanical braking device 100 includes a driver 10 and a brake 20. The driver 10 is used to provide driving force to the brake 20, and the brake 20 is used to generate internal mechanism action after receiving power to brake the brake disc 1002, thereby indirectly braking the wheel 1001, and thus realizing the braking function of the vehicle 1000.

[0061] In one embodiment, the driver 10 drives the transmission assembly 21 to move and transmits power to the friction plate 22 through the transmission assembly 21. The transmission assembly 21 is used to push the adjacent friction plate 22 toward the brake disc 1002 to brake the wheel 1001.

[0062] In this application specification, two friction plates 22 are described by way of example, namely the first friction plate 22a and the second friction plate 22b.

[0063] In one embodiment, the actuator 10 includes a reducer 12 and a brake motor 13. The brake 20 includes a clamp 23 and a transmission assembly 21. The brake motor 13 drives the transmission assembly 21 via the reducer 12. The transmission assembly 21 drives the friction pads 22.

[0064] In one embodiment, the brake includes a transmission assembly 21 and a separate clamp body 23. The separate clamp body 23 includes a body 231 and an end cap 232. The end cap 232 is detachably connected to the body 231. In one embodiment, the arrangement direction of the two friction pads 22 is parallel to the axial direction of the brake motor 13, and the radial direction of the brake motor 13 is perpendicular to the arrangement direction of the two friction pads 22.

[0065] exist Figure 2 - Figure 4 In the schematic diagram, the brake 20 includes a caliper body 23 and a caliper bracket 24, and the transmission assembly 21 is housed within the caliper body 23. The caliper bracket 24 is fixed to the frame of the vehicle 1000, and the caliper body 23 is slidably connected to the caliper bracket 24, with the sliding direction of the caliper body 23 relative to the caliper bracket 24 parallel to the axial direction of the brake disc 1002 of the wheel 1001.

[0066] Along the axial direction of the brake disc 1002, the two friction pads 22 of the brake 20 are positioned on opposite sides of the brake disc 1002, i.e., along the rotation axis of the brake disc 1002. The first friction pad 22a is located on the side of the brake disc 1002 closer to the transmission assembly 21, and is slidably connected to the caliper body 23. The second friction pad 22b is located on the side of the brake disc 1002 away from the transmission assembly 21 and is fixedly connected to the caliper body 23.

[0067] The driver 10 drives the transmission assembly 21 to move along the rotation axis of the brake disc 1002 toward the brake disc 1002, so that the transmission assembly 21 synchronously drives the first friction plate 22a to slide toward the brake disc 1002.

[0068] In one embodiment, the sliding direction of the first friction pad 22a is parallel to the rotation axis of the brake disc 1002. The rotation axis of the brake disc 1002 is parallel to the axial direction of the brake motor 13.

[0069] When the transmission assembly 21 displaces and pushes the first friction pad 22a toward the brake disc 1002 until it abuts against the brake disc 1002, a reverse thrust is generated on the first friction pad 22a along the rotation axis of the brake disc 1002, that is, a reverse thrust applied by the brake disc 1002 to the first friction pad 22a. Under the action of the thrust, the transmission assembly 21 continues to displace, which can drive the caliper body 23 to slide relative to the caliper bracket 24.

[0070] Since the direction of the reverse thrust applied by the brake disc 1002 to the first friction pad 22a is along the rotation axis of the brake disc 1002 towards the transmission assembly 21, it will drive the caliper body 23 to slide along the rotation axis of the brake disc 1002 towards the transmission assembly 21, and simultaneously drive the second friction pad 22b, which is fixedly connected to the caliper body 23, to slide along the rotation axis of the brake disc 1002 towards the transmission assembly 21, thereby realizing that the transmission assembly 21 drives the two friction pads 22 to move closer to each other from opposite sides of the brake disc 1002 (e.g., ...). Figure 4 The effect shown by the solid arrow in the middle.

[0071] That is, the transmission assembly 21 drives the first friction pad 22a to move towards the brake disc 1002 to brake the wheel 1001. This can be understood as the transmission assembly 21 driving the first friction pad 22a to slide towards the brake disc 1002, and through the clamp 23 driving the second friction pad 22b to slide towards the brake disc 1002 simultaneously, so that the two friction pads 22 slide towards each other. In other words, the thrust generated by the driver 10 driving the transmission assembly 21 can form a thrust for the friction pad 22 to slide along the rotation axis of the brake disc 1002 and a thrust for the clamp 23 to slide in the opposite direction, thereby simultaneously driving the two friction pads 22 to move towards each other and brake the brake disc 1002.

[0072] When the two friction pads 22 approach each other along the axial direction of the brake disc 1002 until they abut against the two end faces opposite to the brake disc 1002, friction is generated between the friction pads 22 and the brake disc 1002 to reduce the rotational speed of the brake disc 1002. Since the brake disc 1002 rotates synchronously with the wheel 1001, the reduction in the rotational speed of the brake disc 1002 will synchronously drive the wheel 1001 to reduce its rotational speed, thereby creating a braking effect on the wheel 1001, and thus enabling the electromechanical braking device 100 to brake the vehicle 1000.

[0073] Meanwhile, in this embodiment, two friction pads 22 are respectively abutted against two opposite end faces of the brake disc 1002 along its own axial direction to brake the brake disc 1002. Since the friction pads 22 have a large area, when they abut against the end face of the brake disc 1002, there is a large contact area between the friction pads 22 and the brake disc 1002, which can generate a large friction force between the brake disc 1002 and the friction pads 22 to ensure reliable braking of the wheel 1001.

[0074] Understandably, the braking process of the electromechanical braking device 100 can be as follows: when the driver 10 drives the transmission assembly 21 to move along the rotation axis of the brake disc 1002 toward the brake disc 1002, the transmission assembly 21 generates thrust and pushes the first friction plate 22a to slide toward the brake disc 1002, and simultaneously pushes the caliper body 23 to slide relative to the caliper bracket 24, so as to drive the second friction plate 22b, which is fixedly connected to the caliper body 23, to slide toward the brake disc 1002. Both the first friction plate 22a and the second friction plate 22b are in contact with the brake disc 1002 and form friction. The first friction plate 22a and the second friction plate 22b work together to achieve the effect of the electromechanical braking device 100 braking the brake disc 1002.

[0075] Since the caliper bracket 24 is fixed to the frame of the vehicle 1000, when the transmission assembly 21 moves along the rotation axis of the brake disc 1002 towards the brake disc 1002, it synchronously drives the caliper body 23 to slide. At this time, the displacement direction of the transmission assembly 21 is parallel to the sliding direction of the caliper body 23 relative to the caliper bracket 24, that is, the displacement direction of the transmission assembly 21 is parallel to the rotation axis of the brake disc 1002, or it can be understood that the displacement direction of the transmission assembly 21 is parallel to the axle of the wheel 1001.

[0076] In one embodiment, the clamp 23 includes a body 231 and an end cap 232. The body 231 includes a receiving cavity 2314 for accommodating the transmission assembly 21. The end cap 232 covers the receiving cavity 2314. A transmission component between the reducer 12 and the transmission assembly 21 passes through the end cap along the axial direction of the brake motor 13. The brake motor 13, the end cap 232, and the transmission assembly 21 are arranged on the same side of the reducer 12.

[0077] In one embodiment, the end cap 232 is provided with a through hole 2322 extending axially along the brake motor 13. The through hole 2322 is used to avoid the transmission component between the reducer 12 and the transmission assembly 21. In this embodiment, the transmission component between the reducer 12 and the transmission assembly 21 includes the output shaft of the reducer 12 or the input shaft of the transmission assembly 21.

[0078] In one embodiment, the end cap 232 includes an extension section 2321. Along the axial direction of the brake motor 13, the extension section 2321 is received in a receiving cavity 2314, and the end face of the extension section 2321 is used to limit the sliding distance of the transmission assembly 21 toward the end cap 232 within the receiving cavity 2314.

[0079] In one embodiment, the brake 20 includes a pressure sensor 26 for detecting the pressure exerted by the transmission assembly 21 on the end cap 232. Along the axial direction of the brake motor 13, the pressure sensor 26 is located between the transmission assembly 21 and the end cap 232, and the surface of the end cap 232 facing the receiving cavity 2314 is provided with a stepped hole 2325 for receiving and fixing the pressure sensor 26.

[0080] In one embodiment, the end cap 232 includes a first mounting surface 2323 and a second mounting surface 2324 that are axially opposite to each other of the brake motor 13. The second mounting surface 2324 faces the reducer 12 and is provided with a third groove 2326 for avoiding the signal transmission line of the pressure sensor 26. The third groove 2326 extends radially along the brake motor 13.

[0081] In one embodiment, the first mounting surface 2323 includes a first groove 2323a and a first seal 28, the first seal 28 being embedded in the first groove 2323a to achieve a seal between the end cap and the body 231 of the clamp 23. Alternatively, the second mounting surface 2324 and the housing of the driver 10 are provided with a mutually cooperating second groove 2324a and a second seal 29, the second seal 29 being embedded in the second groove 2324a to achieve a seal between the end cap and the housing of the driver 10.

[0082] Please refer to the following: Figure 5 - Figure 7 , Figure 5 This is a schematic diagram of the external structure of the electromechanical braking device 100 provided in the embodiments of this application. Figure 6 This is a cross-sectional structural schematic diagram of the electromechanical braking device 100 provided in the embodiments of this application. Figure 7 This is an exploded structural diagram of the electromechanical braking device 100 provided in the embodiments of this application.

[0083] The clamp body 23 includes a fixedly connected body 231 and an end cap 232. The transmission assembly 21 is housed within the body 231. Along the arrangement direction of the two friction plates 22, the driver 10, the end cap 232, and the transmission assembly 21 are arranged sequentially on the same side of the two friction plates 22.

[0084] exist Figure 5 - Figure 7 In the schematic diagram, along the arrangement direction of the two friction pads 22, the end cap 232 is fixed to the side of the body 231 facing the driver 10.

[0085] A transmission element between the driver 10 and the brake 20 passes through the end cover 232 and extends into the body 231 to enable a transmission connection with the transmission assembly 21 housed within the body 231. In one embodiment, the transmission element between the driver 10 and the brake 20 includes the output shaft of the driver 10 or the input shaft of the brake 20.

[0086] The arrangement of the two friction pads 22 can be understood as the two friction pads 22 being arranged alternately along the rotation axis of the brake disc 1002, or it can be understood as the arrangement of the two friction pads 22 being parallel to the rotation axis of the brake disc 1002.

[0087] Please combine Figure 6 and Figure 7 See also Figure 8 , Figure 8 This is a schematic diagram of the external structure of the clamp 23 body 231 in the electromechanical braking device 100 provided in this application embodiment. (See attached diagram.) Figure 6 - Figure 8 As shown, the body 231 of the clamp 23 includes a receiving part 2311, a pushing part 2312 and a connecting part 2313. Along the arrangement direction of the two friction plates 22, the receiving part 2311 and the pushing part 2312 are arranged on both sides of the two brake discs 1002. Along the arrangement direction perpendicular to the two friction plates 22, the connecting part 2313 is located on the same side of the receiving part 2311 and the pushing part 2312, and the connecting part 2313 is fixedly connected to the receiving part 2311 and the pushing part 2312 respectively.

[0088] That is, in Figure 6 - Figure 8 In the example, along the arrangement direction of the two friction plates 22, the receiving portion 2311 and the pushing portion 2312 are arranged at intervals, with the receiving portion 2311 located on the side of the first friction plate 22a away from the second friction plate 22b, and the pushing portion 2312 located on the side of the second friction plate 22b away from the first friction plate 22a. The connecting portion 2313 is fixedly connected between the receiving portion 2311 and the pushing portion 2312, and is located on the same side of the receiving portion 2311 and the pushing portion 2312 away from the brake disc 1002.

[0089] Understandably, by providing a connecting part 2313 to bridge between the receiving part 2311 and the pushing part 2312, the distance between the receiving part 2311 and the pushing part 2312 is fixed, providing a sliding clearance for the two friction pads 22 to move toward the brake disc 1002.

[0090] In one embodiment, the distance H between the receiving part 2311 and the pushing part 2312 is greater than the sum of the thickness dimensions of the two friction plates 22 and the thickness dimension of the brake disc 1002, W.

[0091] For example, such as Figure 6 - Figure 8 As shown, the distance H between the receiving part 2311 and the pushing part 2312 can be understood as the distance between the side surface of the receiving part 2311 facing the pushing part 2312 and the side surface of the pushing part 2312 facing the receiving part 2311 along the arrangement direction of the two friction plates 22.

[0092] The sum W of the thickness dimensions of the two friction pads 22 and the brake disc 1002 can be understood as the sum of the distances between the two opposing end faces of the first friction pad 22a, the two opposing end faces of the second friction pad 22b, and the two opposing end faces of the brake disc 1002 along the arrangement direction of the two friction pads 22. Alternatively, it can be understood as the distance between the end face of the first friction pad 22a away from the second friction pad 22b and the end face of the second friction pad 22b away from the first friction pad 22a, along the arrangement direction of the two friction pads 22, when the two friction pads 22 are close together and in contact with the two opposing end faces of the brake disc 1002, i.e., the distance between the two opposing end faces of the two friction pads 22.

[0093] By setting the interval H between the receiving part 2311 and the pushing part 2312 to be greater than the sum of the thickness dimensions of the two friction pads 22 and the thickness dimension W of the brake disc 1002, when the electromechanical braking device 100 is in a non-braking state, the two friction pads 22 are far apart from each other and can reserve enough rotation space for the brake disc 1002 to rotate around its own axis, so as to ensure the normal driving of the vehicle 1000.

[0094] In one embodiment, the body 231 of the clamp 23 has two sliding connection holes 2316. The two sliding connection holes 2316 are used to slide with sliding pins on the caliper bracket 24, so that the clamp 23 is slidably connected to the frame via the caliper bracket 24. Along the radial direction of the end cap 232, the two sliding connection holes 2316 are located on both sides of the end cap 232.

[0095] Please see Figure 9 , Figure 9 This is a cross-sectional structural diagram of a portion of the electromechanical braking device 100 provided in an embodiment of this application. The transmission assembly 21 is housed within the housing portion 2311 of the main body 231. The friction plate 22 closer to the transmission assembly 21 is slidably connected to the housing portion 2311, while the friction plate 22 farther from the transmission assembly 21 is fixedly connected to the pushing portion 2312.

[0096] exist Figure 9In the example, the first friction plate 22a is slidably connected to the receiving portion 2311, and the second friction plate 22b is fixedly connected to the pushing portion 2312. Along the arrangement direction of the two friction plates 22, the first friction plate 22a is located on the side of the receiving portion 2311 facing the brake disc 1002. When the driver 10 drives the transmission assembly 21, the transmission assembly 21 will push the first friction plate 22a to slide relative to the receiving portion 2311 towards the brake disc 1002.

[0097] For example, the receiving portion 2311 is provided with a receiving cavity 2314, and the position of the receiving cavity 2314 corresponds to the position of the transmission assembly 21. The receiving cavity 2314 extends through the receiving portion 2311 along the arrangement direction of the two friction plates 22. The transmission assembly 21 is located within the receiving cavity 2314 and can be displaced along the arrangement direction of the two friction plates 22 to push the adjacent friction plate 22 (in Figure 6 (Illustrated in the middle as the first friction plate 22a).

[0098] That is, the receiving cavity 2314 is sleeved around the transmission assembly 21, and the axis of the receiving cavity 2314 is parallel to the arrangement direction of the two friction pads 22. This can also be understood as the receiving cavity 2314 extending along the rotation axis of the brake disc 1002. Along the arrangement direction of the two friction pads 22, the receiving cavity 2314 has two opposing openings. Figure 9 The following is an example using two openings, namely power input opening 2314a and power output opening 2314b.

[0099] The power input opening 2314a is located on the side of the receiving cavity 2314 near the driver 10, so that the driver 10 transmits driving force from the power input opening 2314a to the transmission assembly 21 housed in the receiving cavity 2314. The power output opening 2314b is located on the side of the receiving cavity 2314 near the friction plate 22, so that the transmission assembly 21 outputs power from the power output opening 2314b to one of the adjacent friction plates 22 (in... Figure 9 The first friction pad (22a) is shown in the diagram, and the friction pad 22 is driven to slide toward the brake disc 1002 to brake the brake disc 1002.

[0100] This can also be understood as, in Figure 9 In the illustration, the transmission component 21 extends into the clamp body 23 from the side of the receiving cavity 2314 away from the friction plate 22 (i.e., the power output opening 2314b), and extends out from the other side of the receiving cavity 2314 (i.e., the power output opening 2314b) to push the friction plate 22.

[0101] Understandably, since the transmission component 21 outputs power from the power output opening 2314b within the receiving cavity 2314 and drives the friction plate 22 to slide along the rotation axis of the brake disc 1002, by setting the receiving cavity 2314 to extend along the rotation axis of the brake disc 1002, the structural shape of the receiving cavity 2314 can be adapted to the structural features and motion requirements of the transmission component 21. Thus, while the receiving cavity 2314 forms a receiving effect on the transmission component 21, it can also meet the motion requirements of the transmission component 21 to output power and brake the vehicle 1000.

[0102] By providing a receiving cavity 2314 to house the transmission assembly 21, a protective effect can be achieved on the transmission assembly 21, so as to prevent external moisture, dust, foreign objects and other impurities from corroding the functional structural components inside the transmission assembly 21, thereby ensuring the transmission efficiency and service life of the transmission assembly 21.

[0103] Meanwhile, by setting the receiving cavity 2314 to penetrate the receiving part 2311 along the arrangement direction of the two friction plates 22, the transmission component 21 can be installed from the side of the body 231 away from the push part 2312, thereby eliminating the need to reserve an assembly clearance for the transmission component 21 on the side of the body 231 close to the push part 2312, reducing the assembly difficulty of the transmission component 21 and improving the assembly accuracy of the transmission component 21.

[0104] In one embodiment, the transmission assembly 21 includes a lead screw 211 and a sleeve 212 that mesh with each other. The lead screw 211 is driven between the driver 10 and the sleeve 212. The sleeve 212 meshes with the lead screw 211 and moves toward the brake disc 1002 as the lead screw 211 rotates to push the friction plate 22.

[0105] exist Figure 9 In the schematic diagram, the lead screw 211 and the sleeve 212 are located on the same side of the friction plate 22 along the rotation axis of the brake disc 1002. The sleeve 212 is coaxially sleeved around the lead screw 211 and meshes with the lead screw 211. The lead screw 211 receives the driving force input from the driver 10 and rotates about its own axis. The rotation of the lead screw 211 about its own axis can drive the sleeve 212 to slide, and the sleeve 212 slides and pushes the adjacent friction plate 22 (in... Figure 9 The first friction plate 22a) slides toward the brake disc 1002 in a direction parallel to the rotation axis of the lead screw 211.

[0106] Understandably, by constructing the threaded sleeve 212 as a ring and fitting it around the outer periphery of the lead screw 211, the engagement of the threaded sleeve 212 with the lead screw 211 is facilitated, and the structure of the threaded sleeve 212 is simplified, making it easier to manufacture. Through the cooperative action of the lead screw 211 and the threaded sleeve 212, the rotational driving force input by the driver 10 can be converted into a displacement thrust along the axial direction of the brake disc 1002, thereby pushing the friction plate 22 to generate friction between the friction plate 22 and the brake disc 1002 to brake the brake disc 1002, thereby indirectly braking the wheel 1001 and achieving the effect of braking the vehicle 1000.

[0107] Meanwhile, by setting the transmission component 21 to achieve transmission through the meshing of the lead screw 211 and the threaded sleeve 212, the transmission efficiency and transmission smoothness of the transmission component 21 can be improved, further enhancing the braking effect of the electromechanical braking device 100.

[0108] In one embodiment, the transmission assembly 21 includes a piston 213. The piston 213 surrounds the periphery of the lead screw 211 along a direction perpendicular to the arrangement of the two friction plates 22. Along the arrangement of the two friction plates 22, the piston 213 is located between the threaded sleeve 212 and the friction plates 22. The threaded sleeve 212 pushes the friction plates 22 towards the brake disc 1002 via the piston 213. That is, the piston 213 is coaxially fixed with the threaded sleeve 212 and located on the side of the threaded sleeve 212 facing at least one friction plate 22. The end face of the piston 213 away from the threaded sleeve 212 is used to hold one friction plate 22.

[0109] For example, such as Figure 9 As shown, along the direction in which the two friction plates 22 are arranged, the threaded sleeve 212 and the piston 213 are both sleeved around the lead screw 211. Along the rotation axis of the lead screw 211, the threaded sleeve 212 is located on the side of the piston 213 opposite to the friction plates 22; in other words, the piston 213 is located between the threaded sleeve 212 and the friction plates 22. The threaded sleeve 212 engages with the lead screw 211 and is fixedly connected to the piston 213.

[0110] The lead screw 211 rotates around its own axis and drives the threaded sleeve 212 to slide. The threaded sleeve 212 slides along the rotation axis of the lead screw 211. Since the piston 213 is fixedly connected to the threaded sleeve 212, when the lead screw 211 drives the threaded sleeve 212 to slide, the threaded sleeve 212 will synchronously drive the piston 213 to slide along the rotation axis of the lead screw 211.

[0111] exist Figure 9In the example, the lead screw 211 rotates and drives the threaded sleeve 212 to slide along the rotation axis of the lead screw 211 toward the friction plate 22. Since the piston 213 is located between the threaded sleeve 212 and the friction plate 22 and is fixedly connected to the threaded sleeve 212, when the threaded sleeve 212 drives the piston 213 to slide toward the friction plate 22, along the rotation axis of the lead screw 211, the end face of the piston 213 away from the threaded sleeve 212 first contacts and abuts against the friction plate 22 to push the friction plate 22 to slide.

[0112] Understandably, by setting the end face of the piston 213 facing the friction plate 22 to abut against the friction plate 22 and generate a pushing force to push the friction plate 22 to slide, the contact area between the transmission component 21 and the friction plate 22 can be increased, thereby improving the pushing stability and efficiency of the friction plate 22. That is, the piston 213 can be provided with a larger contact surface corresponding to the friction plate 22 to ensure that the thrust generated by the screw sleeve 212 is transmitted to the friction plate 22 more smoothly.

[0113] Please refer to the following: Figure 10 - Figure 12 , Figure 10 This is an exploded structural diagram of the clamp body 23 in the electromechanical braking device 100 provided in the embodiments of this application. Figure 11 This is a cross-sectional structural diagram of a portion of the electromechanical braking device 100 provided in the embodiments of this application. Figure 12 This is a cross-sectional structural diagram of a portion of the electromechanical braking device 100 provided in an embodiment of this application. (See diagram below.) Figure 10 - Figure 12 As shown, the end cap 232 is fixed to the side of the receiving portion 2311 away from the pushing portion 2312 and is used to shield the end of the receiving cavity 2314 near the driver 10. The lead screw 211 can pass through the end cap 232 and be connected to the driver 10 to receive driving force. That is, along the arrangement direction of the two friction plates 22, the power input opening 2314a of the receiving cavity 2314 faces the driver 10, and the end cap 232 is used to shield the power input opening 2314a.

[0114] Understandably, by fixing the end cap 232 to the receiving part 2311 and using it to cover the power input opening 2314a, the end cap 232 can form a sealing effect on the receiving cavity 2314 from the power input opening 2314a, further improving the protection effect on the transmission component 21 housed in the receiving cavity 2314, and preventing external moisture, dust or other impurities from entering the receiving cavity 2314 from the power input opening 2314a and affecting the transmission performance of the transmission component 21.

[0115] In one embodiment, the end cap 232 is provided with a through hole 2322 extending along the arrangement direction of the two friction pads 22, and the transmission assembly 21 and the driver 10 pass through the through hole 2322 and are connected in a transmission manner.

[0116] In one embodiment, the end cap 232 includes an extension section 2321 located within the receiving portion 2311, and the end face of the extension section 2321 facing the pushing portion 2312 is used to limit the sliding distance of the transmission assembly 21 toward the end cap 232 within the receiving cavity 2314.

[0117] For example, the extension section 2321 extends toward the pushing part 2312 along the direction in which the two friction plates 22 are arranged, and extends into the receiving part 2311 from the power input opening 2314a, so as to achieve the effect that the extension section 2321 is located in the receiving part 2311. Along the direction in which the two friction plates 22 are arranged, the extension section 2321 and the transmission assembly 21 are arranged in sequence. When the lead screw 211 rotates in the opposite direction to drive the threaded sleeve 212 to slide away from the brake disc 1002, the end face of the extension section 2321 of the end cover 232 facing the threaded sleeve 212 will contact the threaded sleeve 212 and form a resistance.

[0118] Since the end cap 232 is fixedly connected to the receiving part 2311, when the lead screw 211 drives the threaded sleeve 212 to slide toward the end cap 232 and contact and abut against the extension section 2321, the extension section 2321 restricts the threaded sleeve 212 from sliding toward the end cap 232, thereby limiting the sliding distance of the transmission assembly 21 toward the end cap 232 in the receiving cavity 2314.

[0119] Understandably, along the arrangement direction of the two friction plates 22, when the threaded sleeve 212 slides to contact and abut against the end face of the end cap 232 facing the push part 2312, the end cap 232 will limit the sliding distance of the threaded sleeve 212 relative to the lead screw 211, so as to avoid the frictional preload between the threaded sleeve 212 and the lead screw 211 under the action of inertial force, thereby providing a protective effect for the lead screw 211 and the threaded sleeve 212, and at the same time improving the response speed of the electromechanical braking device 100 during the next braking.

[0120] In addition, the end cap 232 serves to limit the sliding distance of the transmission assembly 21 toward the end cap 232, and also to bear the reaction force of the transmission assembly 21 pushing the friction plate 22.

[0121] Specifically, when the driver 10 inputs power to the transmission assembly 21 through the automatic force input opening 2314a, it drives the lead screw 211 of the transmission assembly 21 to rotate around its own axis. The rotation of the lead screw 211 causes the threaded sleeve 212 to slide along the arrangement direction of the two friction plates 22, thereby driving one of the adjacent friction plates 22 (in... Figure 11The diagram shows the first friction pad 22a sliding towards the brake disc 1002. After the transmission assembly 21 drives the first friction pad 22a to contact the brake disc 1002 and form a resistance with the brake disc 1002, the brake disc 1002 transmits a reverse thrust to the transmission assembly 21 through the first friction pad 22a.

[0122] The transmission assembly 21 is also used to push the end cap 232 in the opposite direction, so as to drive the body 231 of the caliper 23 to slide the distal friction plate 22 toward the brake disc 1002. That is, along the direction in which the two friction plates 22 are arranged, the transmission assembly 21 pushes the end cap 232 in the direction away from the brake disc 1002. The end cap 232 bears the reaction force of the transmission assembly 21 pushing the friction plate 22, and drives the second friction plate 22b, which is fixedly connected to the pushing part 2312, to slide toward the brake disc 1002, thereby forming the effect of the driver 10 driving the two friction plates 22 to move closer to each other to brake the brake disc 1002.

[0123] In other words, the transmission component 21 can push one of the relatively close friction plates 22 to slide within the clamp body 23, and push the body 231 of the clamp body 23 through the end cap 232 to drive the relatively distant friction plate 22 to slide, thereby achieving the effect of driving the two friction plates 22 to move closer to each other.

[0124] Understandably, by installing an end cap 232 on the side away from the pusher 2312, and by using the end cap 232 to limit the sliding distance of the transmission assembly 21 toward the end cap 232 and to bear the reaction force of the transmission assembly 21 pushing the friction plate 22, the receiving part 2311 of the main body 231 is separated into an end cap 232 for the structure used to shield the receiving cavity 2314, so that the receiving cavity 2314 can be set as a through hole structure that runs through the arrangement direction of the two friction plates 22, thereby reducing the processing difficulty of the receiving cavity 2314 and improving the processing accuracy of the receiving cavity 2314.

[0125] In one embodiment, the outer peripheral surface of the extension section 2321 is attached to the inner peripheral surface of the receiving cavity 2314 along a direction perpendicular to the rotation axis of the lead screw 211.

[0126] By positioning the extension section 2321 within the receiving cavity 2314, the extension section 2321 can be used for reliable radial positioning between the auxiliary end cap 232 and the body 231. By positioning the outer peripheral surface of the extension section 2321 against the inner peripheral surface of the receiving cavity 2314, the contact area between the end cap 232 and the body 231 is increased to improve the sealing effect.

[0127] Typically, the clamp body, as the main load-bearing component of an electromechanical braking device, serves two purposes: securing the brake motor and mechanical transmission mechanism, and connecting the brake friction pads. The clamp body has a relatively complex structure and requires high precision, resulting in significant manufacturing difficulties and high costs.

[0128] The electromechanical braking device 100 of this application splits the clamp body 23 into two parts: the body 231 and the end cap 232, which are assembled together to form the structure of the clamp body 23. The assembly direction of the end cap 232 and the body 231 is parallel to the sliding direction of the friction plate 22. The body 231 can be machined from the side of the end cap 232 to form a receiving cavity 2314 for accommodating the transmission component 21, which helps to reduce the machining difficulty of the body 231 and improve the machining accuracy.

[0129] Meanwhile, the transmission assembly 21 can be installed from the side of the body 231 away from the friction plate 22, eliminating the need to reserve an assembly clearance for the transmission assembly 21 on the side of the body 231 closest to the friction plate 22, which facilitates the assembly of the body 231. The overall rigidity of the clamp body 23 can be ensured by configuring the connector of the end cover 232. On the pushing part 2312 side of the body 231, because there is no need to reserve an assembly clearance, the contact area between the pushing part 2312 and the friction plate 22 can be appropriately increased, improving the overall rigidity of the clamp body 23 and ensuring a reliable connection to the friction plate 22.

[0130] The vehicle 1000 of this application uses the electromechanical braking device 100 provided in the embodiments of this application for braking. Because the electromechanical braking device 100 provided in the embodiments of this application splits the caliper 23 into a structure combining an end cap 232 and a body 231, the structure of the caliper 23 is simplified for easier processing, and the vehicle 1000 of this application also reduces costs while ensuring braking performance. That is, because the vehicle 1000 of this application is equipped with the electromechanical braking device 100 provided in the embodiments of this application, the vehicle 1000 possesses all the beneficial effects that the electromechanical braking device 100 of this application may have.

[0131] In one embodiment, the end cap 232 is fixedly connected to the body 231 of the clamp 23 by bolts 25, and the length direction of the bolts 25 is parallel to the arrangement direction of the two friction pads 22. Setting the length direction of the bolts 25 to be parallel to the displacement direction of the friction pads 22 allows the bolts 25 to bear tensile force during the braking process of the clamp 23, resulting in good stress distribution on the bolts 25 and improving the overall rigidity of the clamp 23.

[0132] In one embodiment, there are two bolts 25. The two bolts 25 are symmetrically distributed at opposite ends of the end cover 232 along the arrangement direction perpendicular to the two friction plates 22, so as to ensure that the end cover 232 is subjected to uniform force during the overall rotation of the electromechanical braking device 100, and further improve the force-bearing effect and overall structural stability of the electromechanical braking device 100.

[0133] Please combine Figure 12 See also Figure 13 and Figure 14 , Figure 13 This is a schematic diagram of the external structure of the end cap 232 of the clamp body 23 in the electromechanical braking device 100 provided in this application embodiment. Figure 14 This is a cross-sectional structural diagram of the end cap 232 of the clamp body 23 in the electromechanical braking device 100 provided in this embodiment of the application. Figure 12 - Figure 14 As shown, along the direction in which the two friction pads 22 are arranged, the end cap 232 has two opposing mounting surfaces, which are schematically represented in this specification as a first mounting surface 2323 and a second mounting surface 2324. The first mounting surface 2323 is located on the side of the end cap 232 facing the body 231 of the clamp 23 and is in contact with the body 231. The second mounting surface 2324 is located on the side of the end cap 232 facing the housing 11 of the driver 10 and is in contact with the housing 11 of the driver 10 (e.g., ...). Figure 6 As shown) fit.

[0134] In one embodiment, a first groove 2323a and a first seal 28 are provided between the first mounting surface 2323 and the body 231 of the clamp 23. The first seal 28 is embedded in the first groove 2323a to achieve a seal between the end cap 232 and the body 231 of the clamp 23.

[0135] For example, this application specification describes the first groove 2323a being formed on the first mounting surface 2323 as an example, and... Figure 14 The first groove is illustrated as groove 2323a. Specifically, groove 2323a is formed on the first mounting surface 2323 and extends along the plane of the first mounting surface 2323. The first sealing element 28 is embedded in the first groove 2323a. By sealing the first mounting surface 2323 of the end cap 232 with the body 231, the internal sealing protection of the clamp body 23 can be achieved.

[0136] In one embodiment, a second groove 2324a and a second seal 29 are provided between the second mounting surface 2324 and the housing 11 of the driver 10. The second seal 29 is embedded in the second groove 2324a to achieve a seal between the end cap 232 and the housing 11 of the driver 10.

[0137] For example, this application specification describes the second groove 2324a being formed on the second mounting surface 2324 as an example, and... Figure 14 The second groove is illustrated as groove 2324a. Specifically, groove 2324a is formed on the second mounting surface 2324 and extends along the plane of the second mounting surface 2324. The second seal 29 is embedded in the second groove 2324a. By sealing the second mounting surface 2324, where the end cap 232 is provided, with the housing 11 of the driver 10, a sealed protection between the clamp body 23 and the driver 10 can be achieved.

[0138] In one embodiment, the first groove 2323a and the second groove 2324a are both constructed as closed ring structures to improve the sealing and protection effect of the first seal 28 and the second seal 29, respectively.

[0139] Please refer to the following: Figure 15 and Figure 16 , Figure 15 This is an exploded structural diagram of a portion of the electromechanical braking device 100 provided in an embodiment of this application. Figure 16 For this application Figure 12 The illustrated embodiment shows a partial cross-sectional view of the electromechanical braking device 100 at position A. (See diagram below.) Figure 15 and Figure 16 As shown, the brake 20 includes a pressure sensor 26, which is used to monitor and detect the pressure exerted by the transmission assembly 21 on the end cap 232. The driver 10 is used to receive the pressure signal monitored and detected by the pressure sensor 26 to adjust the output torque.

[0140] Specifically, along the arrangement direction of the two friction plates 22, the pressure sensor 26 is located between the transmission assembly 21 and the end cap 232. A stepped hole 2325 for receiving and fixing the pressure sensor 26 is provided on the surface of the end cap 232 facing the receiving cavity 2314.

[0141] Understandably, by placing the pressure sensor 26 on the side of the transmission assembly 21 near the end cover 232, and using the stepped hole 2325 in the end cover 232 to accommodate and fix the pressure sensor 26, pressure detection is achieved while simplifying the installation structure and making reasonable use of the internal space of the clamp body 23.

[0142] In one embodiment, the brake 20 includes a thrust bearing 27 located between the transmission assembly 21 and the pressure sensor 26 along the arrangement direction of the two friction plates 22. The thrust bearing 27 is used to reduce the frictional force between the transmission assembly 21 and the pressure sensor 26 during relative movement.

[0143] In one embodiment, along the arrangement direction of the two friction plates 22, the distance L1 between the end face of the thrust bearing 27 away from the end cover 232 and the second mounting surface 2324 is greater than the distance L2 between the end face of the extension section 2321 away from the end cover 232 and the second mounting surface 2324. It is understood that by setting the surface of the thrust bearing 27 facing the transmission assembly 21 to protrude beyond the surface of the end cover 232 facing the transmission assembly 21, reliable contact between the transmission assembly 21 and the thrust bearing 27 is ensured, and frictional loss between the thrust bearing 27 and the pressure sensor 26 is reduced.

[0144] Please return to the reference. Figure 13 .exist Figure 13 In the schematic diagram, a third groove is provided between the second mounting surface 2324 and the housing 11 of the driver 10. The third groove is used to avoid the transmission line of the pressure sensor 26 electrically connected to the driver 10. In this application specification, the example of the third groove being formed on the second mounting surface 2324 is used for illustrative purposes. Figure 13 The third groove is shown as groove 2326.

[0145] Specifically, the third groove 2326 extends in a direction perpendicular to the arrangement of the two friction pads 22 and in a direction parallel to the second mounting surface 2324. The third groove 2326 includes an inlet end 2326a and an outlet end 2326b. Along the extending direction of the third groove 2326, the inlet end 2326a is located on the side of the third groove 2326 near the through hole 2322 of the end cap 232, and the outlet end 2326b is located on the side of the third groove 2326 away from the through hole 2322.

[0146] like Figure 13 As shown, the input terminal 2326a is connected to the interior of the housing 11 of the driver 10. When the signal transmission line is led out from the side of the pressure sensor 51 away from the transmission assembly 21, the signal transmission line can extend out of the end cap 232 from the input terminal 2326a of the third groove 2326 and into the third groove 2326.

[0147] The output terminal 2326b is located at the edge of the second mounting surface 2324, and the signal transmission line that extends into the third groove 2326 extends out of the second mounting surface 2324 from the output terminal 2326b.

[0148] Understandably, the pressure sensor 26 extends from the mounting surface between the housing 11 and the end cap 232 of the driver 10, which can shorten the routing length of the transmission line inside the electromechanical braking device 100 and reduce the overall volume of the electromechanical braking device 100.

[0149] Please see Figure 17 , Figure 17 This is a schematic diagram of the internal structure layout of the electromechanical braking device 100 provided in an embodiment of this application. Figure 17 As shown, the driver 10 includes a reducer 12 and a brake motor 13. The reducer 12 is connected between the brake 20 and the brake motor 13. The brake motor 13 is used to drive the reducer 12 to rotate in order to provide driving force to the transmission assembly 21.

[0150] For example, along the direction in which the two friction plates 22 are arranged, the reducer 12 is located on the side of the transmission assembly 21 away from at least one friction plate 22, and the reducer 12 is connected to the transmission assembly 21 through the end cover 232. That is, as... Figure 17 As shown, along the direction in which the two friction plates 22 are arranged, the reducer 12 is located on the side of the transmission assembly 21 away from the brake disc 1002. The brake motor 13 rotates through the reducer 12 to drive the transmission assembly 21 to move and brake the wheel 1001, which can also be understood as braking the brake disc 1002.

[0151] Along the direction in which the two friction pads 22 are arranged, the brake motor 13 and the transmission assembly 21 are located on the same side of the reducer 12, that is, the brake motor 13 is located on the side of the reducer 12 facing the transmission assembly 21. And along the direction perpendicular to the arrangement of the two friction pads 22, the brake motor 13 and the transmission assembly 21 are arranged adjacent to each other, which facilitates the transmission assembly 21 being driven by the reducer 12 to drive the sleeve 212 of the transmission assembly 21 to form a displacement along the rotation axis of the transmission assembly 21, and push the friction pads 22 to slide toward the brake disc 1002 to brake the wheel 1001.

[0152] In one embodiment, the body 231 includes a recess 2317 for accommodating the brake motor 13. Along the axial direction of the brake motor 13, the recess of the recess 2317 is directed away from the reducer 12. Along the radial direction of the brake motor 13, the recess of the recess 2317 is directed towards the transmission assembly 21.

[0153] In one embodiment, the body 231 includes two sliding connection holes 2316 for slidingly connecting the caliper bracket 24. Along the radial direction of the brake motor 13, the two sliding connection holes 2316 are respectively arranged on both sides of the end cap 232. Along the arrangement direction of the two sliding connection holes 2316, the projection of the brake motor 13 overlaps the projection of the two sliding connection holes 2316.

[0154] In one embodiment, the body 231 includes two fixed connection holes 2315 for fixing the end cap 232 and the reducer 12. Along the radial direction of the brake motor 13, the two fixed connection holes 2315 are respectively arranged on both sides of the end cap 232. Along the arrangement direction of the two sliding connection holes 2316, the projection of the brake motor 13 overlaps the projection of the two sliding connection holes 2316.

[0155] Please refer to the above. Figure 8The clamp body 23 has two fixing holes 2315 on its main body 231. The two fixing holes 2315 are used to fix the clamp body 23 to the reducer 12, so as to realize the fixed connection between the reducer 12 and the clamp body 23. Along the radial direction of the end cover 232, the two fixing holes 2315 are located on both sides of the end cover 232.

[0156] Please refer to the above. Figure 8 The clamp body 23 has two sliding connection holes 2316 on its body 231. The arrangement direction of the two sliding connection holes 2316 intersects the arrangement direction of the two fixed connection holes 2315. In one embodiment, the arrangement direction of the two sliding connection holes 2316 is perpendicular to the arrangement direction of the two fixed connection holes 2315. The sliding connection holes 2316 of the clamp body 23 relative to the frame and the fixed connection holes 2315 of the clamp body 23 for fixing the reducer 12 are arranged differently, which facilitates the assembly and connection of the clamp body 23 with the frame and the reducer 12, respectively.

[0157] like Figure 17 As shown, the clamp body 23 also has a groove 2317 on its main body 231, which is used to accommodate the brake motor 13. Along the axial direction of the brake motor 13, the recessed direction of the groove 2317 is away from the reducer 12. Along the radial direction of the brake motor 13, the recessed direction of the groove 2317 is towards the transmission assembly 21.

[0158] The central axis of the groove is located between the axis of a sliding connection hole 2316 and the axis of the end cap 232, and between the axis of a fixed connection hole 2315 and the axis of the end cap 232. In this embodiment, the brake motor 13 is offset relative to the end cap 232, which can compress the overall volume of the electromechanical braking device 100 and save wheel end space.

[0159] In one embodiment, the output shaft 122 of the reducer 12 is coaxially driven with the transmission assembly 21. The output shaft 122 of the reducer 12 serves as the transmission element between the reducer 12 and the transmission assembly 21. The output shaft 122 of the reducer 12 passes through the end cover 232. The through hole 2322 of the end cover 232 is used to avoid the output shaft 122 of the reducer 12.

[0160] like Figure 17 As shown, the reducer 12 includes an input shaft 121 and an output shaft 122 that are driven together. The input shaft 121 is coaxially driven with the motor shaft 131 of the brake motor 13, and the output shaft 122 is coaxially driven with the transmission assembly 21. By arranging the reducer 12 and the transmission assembly 21 adjacent to each other and drivingly connecting them, the power transmission path from the brake motor 13 to the transmission assembly 21 can be shortened, the transmission efficiency can be improved, and the size can be reduced.

[0161] In one embodiment, the input shaft 121 and output shaft 122 are arranged side by side along a direction perpendicular to the arrangement of the two friction plates 22, and the axial directions of both the input shaft 121 and output shaft 122 are parallel to the axial direction of the transmission assembly 21. By arranging the input shaft 121 and output shaft 122 side by side and drivingly connected within the reducer 12, the reverse transmission of the output power of the brake motor 13 can be realized, thereby reducing the length of the electromechanical braking device 100. That is, the reducer 12 is arranged along the arrangement direction of the brake motor 13 and the transmission assembly 21, and is simultaneously arranged adjacent to the axial direction of the brake motor 13 and the transmission assembly 21, further shortening the power transmission path from the brake motor 13 to the transmission assembly 21, improving transmission efficiency and reducing volume.

[0162] In one embodiment, the output shaft 122 of the reducer 12 is coaxially driven with the lead screw 211 of the transmission assembly 21. The lead screw 211 serves as the transmission element between the reducer 12 and the transmission assembly 21. The lead screw 211 of the transmission assembly 21 is equivalent to the input shaft of the transmission assembly 21. The lead screw 211 passes through an end cover 232. A through hole 2322 in the end cover 232 is used to avoid the lead screw 211.

[0163] The brake motor 13, acting as a power source, rotates around its own axis via a motor shaft 131 to output power. The motor shaft 131 of the brake motor 13 is coaxially driven with the input shaft 121 of the reducer 12. The rotation of the motor shaft 131 synchronously drives the input shaft 121 to rotate, thus inputting power into the reducer 12. The power output from the brake motor 13 is input into the reducer 12 via the input shaft 121 and output from the reducer 12 via the output shaft 122. The output shaft 122 is coaxially driven with the lead screw 211 of the transmission assembly 21. When the output shaft 122 rotates, it synchronously drives the lead screw 211 to rotate, transmitting power via the lead screw 211 to the sleeve 212. The sleeve 212 pushes the adjacent friction plate 22, causing one friction plate 22 to slide towards the brake disc 1002, and drives the caliper 23 to cause the other friction plate 22 to slide towards the brake disc 1002, thereby achieving the effect of braking the vehicle 1000.

[0164] In other words, the transmission path of the power output by the brake motor 13 within the electromechanical braking device 100 can be, but is not limited to, the motor shaft 131 of the brake motor 13 → input shaft 121 → output shaft 122 → transmission assembly 21 → friction plate 22, thereby achieving the effect of braking the vehicle 1000.

[0165] Understandably, the power output by the brake motor 13 is transmitted to the transmission assembly 21 via the reducer 12, and then the transmission assembly 21 drives the two friction pads 22 to slide and brake the brake disc 1002. This causes the power output by the brake motor 13 to be transmitted to the friction pads 22 via a "U"-shaped path. In other words, the power transmission path of the electromechanical braking device 100 forms a folded effect along the axial direction of the wheel 1001, which compresses the size of the electromechanical braking device 100 along the axial direction of the wheel 1001 and makes reasonable use of the wheel end space of the vehicle 1000.

[0166] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of protection of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An electromechanical braking device with a split-type clamp body, characterized in that, The electromechanical braking device includes a driver and a brake. The driver includes a brake motor and a reducer. The brake includes a transmission assembly and a separate clamping body. The brake motor drives the transmission assembly via the reducer. The transmission assembly drives the friction pads. The separate clamping body includes a body and an end cap. The end cap is detachably connected to the body, wherein: The body includes a receiving cavity for accommodating the transmission assembly, and an end cap for shielding the receiving cavity. The end cap includes an extension section, a first mounting surface, and a second mounting surface. The extension section is accommodated in the receiving cavity, and the outer peripheral surface of the extension section is fitted to the inner peripheral surface of the receiving cavity. The first mounting surface of the end cap is located on the side of the end cap facing the body and is fitted to the body. The second mounting surface of the end cap is located on the side of the end cap facing the housing of the driver and is fitted to the housing of the driver. Along the axial direction of the brake motor, the transmission component between the reducer and the transmission assembly passes through the housing of the driver and the end cover, and the brake motor, the end cover, and the transmission assembly are arranged on the same side of the reducer.

2. The electromechanical braking device as described in claim 1, characterized in that, The end cap is provided with a through hole that extends along the axial direction of the brake motor. The through hole is used to avoid the transmission component between the reducer and the transmission assembly.

3. The electromechanical braking device as described in claim 1, characterized in that, in: Along the axial direction of the brake motor, the end face of the extension section is used to limit the sliding distance of the transmission assembly toward the end cover within the receiving cavity.

4. The electromechanical braking device as described in claim 1, characterized in that, The brake includes a pressure sensor for detecting the pressure exerted by the transmission assembly on the end cap, wherein: Along the axial direction of the brake motor, the pressure sensor is located between the transmission assembly and the end cap, and the surface of the end cap facing the receiving cavity is provided with a stepped hole for receiving and fixing the pressure sensor.

5. The electromechanical braking device as described in claim 4, characterized in that, in: The second mounting surface faces the reducer, and the second mounting surface is provided with a third groove, which is used to avoid the signal transmission line of the pressure sensor, and the third groove extends radially along the brake motor.

6. The electromechanical braking device as described in claim 5, characterized in that, The first mounting surface includes a first groove and a first seal, the first seal being embedded in the first groove to achieve a seal between the end cap and the body of the clamp; or, A second groove and a second seal are provided between the second mounting surface and the housing of the driver, the second seal being embedded in the second groove to achieve a seal between the end cap and the housing of the driver.

7. The electromechanical braking device according to any one of claims 2-6, characterized in that, The body includes a groove for accommodating the brake motor, wherein: Along the axial direction of the brake motor, the recessed direction of the groove is opposite to that of the reducer; Along the radial direction of the brake motor, the recess of the groove faces the transmission assembly.

8. The electromechanical braking device as described in claim 6, characterized in that, Along the axial direction of the brake motor, the brake motor and the transmission assembly are arranged on the same side of the reducer.

9. The electromechanical braking device as described in claim 7, characterized in that, The body includes two sliding connection holes for slidingly connecting the caliper bracket, wherein: Along the radial direction of the brake motor, the two sliding connection holes are respectively arranged on both sides of the end cover; Along the arrangement direction of the two sliding connection holes, the projection of the brake motor covers the projection of the two sliding connection holes.

10. The electromechanical braking device as described in claim 9, characterized in that, The main body includes two fixing holes for fixing the end cap and the reducer, wherein: Along the radial direction of the brake motor, the two fixed connection holes are respectively arranged on both sides of the end cover; Along the arrangement direction of the two fixed connection holes, the projection of the brake motor does not cover the projection of either of the sliding connection holes.

11. An electromechanical braking device, characterized in that, The electromechanical braking device includes a driver and a brake. The driver includes a brake motor and a reducer. The brake includes a clamp body and a transmission assembly. The brake motor drives the transmission assembly via the reducer. The transmission assembly drives a friction plate. The clamp body includes a body and an end cap. The end cap is detachably connected to the body. The body includes a receiving cavity for accommodating the transmission assembly. The end cap covers the receiving cavity. The end cap includes an extension section, a first mounting surface, and a second mounting surface. The extension section is accommodated in the receiving cavity, and its outer peripheral surface abuts against the inner peripheral surface of the receiving cavity. The first mounting surface of the end cap is located on the side of the end cap facing the body and abuts against the body. The second mounting surface of the end cap is located on the side of the end cap facing the housing of the driver and abuts against the housing of the driver. The body of the clamp body includes a groove for accommodating the brake motor. Along the axial direction of the brake motor, a transmission member between the reducer and the transmission assembly passes through the housing of the driver and the end cap. Along the axial direction of the brake motor, the recessed direction of the groove is opposite to that of the reducer; Along the radial direction of the brake motor, the recess of the groove faces the transmission assembly.

12. The electromechanical braking device as described in claim 11, characterized in that, The brake motor, the end cover, and the transmission assembly are arranged on the same side of the reducer.

13. The electromechanical braking device as described in claim 12, characterized in that, The body includes two sliding connection holes and two fixed connection holes. The two sliding connection holes are used for sliding connection of the caliper bracket, and the two fixed connection holes are used for fixed connection of the body and the end cap, wherein: Along the radial direction of the brake motor, the two sliding connection holes are respectively arranged on both sides of the end cover, and the two fixed connection holes are respectively arranged on both sides of the end cover; Along the arrangement direction of the two sliding connection holes, the projection of the brake motor covers the projection of the two sliding connection holes.

14. The electromechanical braking device as described in claim 13, characterized in that, The arrangement direction of the two fixed connecting holes intersects with the arrangement direction of the two sliding connecting holes, wherein: Along the arrangement direction of the two fixed connection holes, the projection of the brake motor does not cover the projection of either of the fixed connection holes.

15. A vehicle, characterized in that, The vehicle includes wheels and an electromechanical braking device as described in any one of claims 1-14, wherein the axial direction of the brake motor is parallel to the rotation axis of the wheels.

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