High-reliability integrated electric brake device

Abstract

The invention provides a high-reliability integrated electric brake device, and belongs to the technical field of brake equipment, the high-reliability integrated electric brake device comprises a mounting bracket, a push plate and a main electric actuator, the main electric actuator is connected to the mounting bracket, the pushing end of the main electric actuator is connected with the push plate, and the electric brake device further comprises a brake loosening driving mechanism; the brake loosening driving mechanism is arranged on the mounting bracket; the driving end of the brake loosening driving mechanism is connected with the push plate; after the main electric actuator pushes the push plate, the driving end of the brake loosening driving mechanism slides outwards along with the push plate. After the main electric actuator breaks down, the brake loosening driving mechanism can reversely pull the push plate, so that the push plate and the pushing end of the main electric actuator are reset; when the main electric actuator breaks down and the brake cannot be loosened, the driving end of the brake loosening mechanism can reversely pull the push plate so that the push plate can be reset, and the brake loosening process is achieved. Through the arrangement, the reliability of the electric brake device can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of brake equipment, and in particular relates to a high-reliability integrated electric brake device. Background Art

[0002] As civil airliners and medium and large drones have higher requirements for braking performance, electric brakes have the advantages of good maintainability, high braking sensitivity, fast and safe operation compared to traditional hydraulic brakes. Therefore, electric brakes can replace traditional hydraulic brakes.

[0003] The electric brake device in the prior art includes an electric actuator, a mounting bracket and a brake push plate; when braking, the electric actuator is controlled by the electric brake system, and the electromagnetic force is converted into torque through the servo motor, and then amplified by the reduction gear, and then the amplified torque is converted into a linear force output of the brake push plate by a ball screw, which presses the brake disc and provides power for braking.

[0004] Since the output force required for aircraft braking is large, the electric actuator of the traditional electric brake device is designed with a multi-link transmission chain reduction mechanism to increase the speed of the servo motor and thereby increase the power density of the electric actuator; a thrust sensor is arranged at the end of the reduction mechanism to detect the load thrust to achieve force closed-loop control; however, the thrust sensor has a high failure rate and is complex to install. The multi-link transmission chain reduction mechanism and thrust sensor arrangement result in a complex shape of the electric actuator and a large installation space, which will reduce the use space of components such as the compressor wheel heat sink and the housing, thereby limiting the braking performance and service life of the brake device.

[0005] In addition, when the electric brake device in the prior art fails during braking, the brake push plate cannot return to its original position, and the brake cannot be released, which poses a safety hazard. Summary of the invention

[0006] The embodiment of the present invention provides a high-reliability integrated electric brake device, aiming to solve the technical problem in the prior art that the electric brake device cannot release the brake after a fault occurs during braking.

[0007] To achieve the above object, the technical solution adopted by the present invention is: Provided is a highly reliable integrated electric brake device, comprising a mounting bracket, a push plate and a main electric actuator, wherein the main electric actuator is connected to the mounting bracket, and the push end of the main electric actuator is connected to the push plate. The electric brake device also comprises: A brake release driving mechanism is arranged on the mounting bracket; a driving end of the brake release driving mechanism is connected to the push plate; Among them, after the main electric actuator pushes the push plate, the driving end of the brake release drive mechanism slides outward following the push plate; during braking, after the main electric actuator fails, the driving end of the brake release drive mechanism can pull the push plate in the opposite direction to reset the push plate and the pushing end of the main electric actuator.

[0008] In a possible implementation, the brake release drive mechanism includes at least one auxiliary electric actuator, which is connected to the mounting bracket, and the driving end of the auxiliary electric actuator is connected to the push plate; wherein the main electric actuator and the auxiliary electric actuator are arranged at intervals along the circumference of the mounting bracket.

[0009] In a possible implementation, the auxiliary electric actuator includes: A reverse planetary roller screw comprises a nut, a screw rod and a roller; one end of the screw rod is connected to the push plate; A first housing is connected to the mounting bracket; the nut of the reverse planetary roller screw is rotatably arranged in the first housing; A stator connected to the inner peripheral wall of the first housing; The rotor is rotatably arranged in the first housing and is connected with the nut of the reverse planetary roller screw.

[0010] In a possible implementation, the main electric actuator includes: A reverse planetary roller screw comprises a nut, a screw rod and a roller; one end of the screw rod is connected to the push plate; A first housing is connected to the mounting bracket; the nut of the reverse planetary roller screw is rotatably arranged in the first housing; A stator connected to the inner peripheral wall of the first housing; The rotor is rotatably arranged in the first housing and is connected with the nut of the reverse planetary roller screw.

[0011] In a possible implementation manner, a position sensor is connected inside the first shell, and the position sensor is used to detect the operating position of the rotor.

[0012] In a possible implementation, the brake release driving mechanism includes: A second shell is connected to the mounting bracket; the interior of the second shell has a sliding space; A sliding component, one end of which is slidably disposed in the sliding space; the other end of the sliding component is located outside the second shell, and the outer end of the sliding component is connected to the push plate; Wherein, an elastic component is arranged in the sliding space, and two ends of the elastic component are respectively connected to the second shell and the sliding component; when the outer end of the sliding component slides outward, the elastic component is in a compressed state.

[0013] In a possible implementation, an outer peripheral wall of the inner side end of the sliding component is provided with an external thread, a nut is threadedly matched on the sliding component, and the nut is slidably matched with the second shell; Wherein, the nut is in abutment with the elastic component.

[0014] In a possible implementation manner, the push plate has a protrusion connected to the sliding component.

[0015] In a possible implementation manner, the first shell and the mounting bracket are integrally provided.

[0016] In a possible implementation, the sliding component includes: A slide rod, one end of which is slidably arranged in the slide space along the movement direction of the push plate, and the other end of which is located outside the second shell; A limit plate connected to the outer end of the slide rod; the limit plate is connected to the push plate; A limit block connected to the inner end of the slide bar; Wherein, two ends of the elastic component are connected to the second shell and the limit block respectively; When the push plate moves toward the wheel carbon disc to brake, the slide bar moves with the push plate, and the elastic component is compressed to generate a preload; when the push plate moves away from the wheel carbon disc to release the brake, the slide bar moves with the push plate, and the elastic component returns to its original shape.

[0017] The present invention provides a high-reliability integrated electric brake device. Compared with the prior art, during normal operation, the push end of the main electric actuator drives the push plate to extend, so that the push plate is pressed against the carbon disc of the aircraft wheel, thereby realizing aircraft deceleration and braking; after deceleration is completed, when the main electric actuator fails and the brake cannot be released, the driving end of the brake release mechanism can pull the push plate in the opposite direction to reset the push plate, thereby realizing the brake release process; through the above-mentioned arrangement of the present application, the reliability of the electric brake device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a high-reliability integrated electric brake device provided by an embodiment of the present invention; Figure 2 A top view of a high-reliability integrated electric brake device provided by an embodiment of the present invention; Figure 3 for Figure 2 Schematic diagram of the cross section of AA; Figure 4 for Figure 2 Schematic cross-section of the middle BB; Figure 5 A schematic diagram of a rotor portion of a high-reliability integrated electric brake device provided by an embodiment of the present invention; Figure 6 for Figure 5 Schematic cross-section of the CC; Figure 7 A schematic diagram of a push plate portion of a high-reliability integrated electric brake device provided in an embodiment of the present invention.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. mounting bracket; 2. push plate; 21. protrusion; 3. main electric actuator; 4. auxiliary electric actuator; 41. first housing; 42. stator; 43. rotor; 44. reverse planetary roller screw; 45. position sensor; 5. second housing; 6. sliding component; 61. slide rod; 62. limit plate; 7. elastic component; 8. nut. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] Please also read Figures 1 to 7 , a high-reliability integrated electric brake device provided by the present invention is now described. The high-reliability integrated electric brake device comprises a mounting bracket 1, a push plate 2 and a main electric actuator 3, wherein the main electric actuator 3 is connected to the mounting bracket 1, and the push end of the main electric actuator 3 is connected to the push plate 2. The electric brake device also comprises a brake release drive mechanism, which is arranged on the mounting bracket 1; the drive end of the brake release drive mechanism is connected to the push plate 2; wherein, after the main electric actuator 3 pushes the push plate 2, the drive end of the brake release drive mechanism slides outward following the push plate 2, and it should be noted that the drive end of the brake release drive mechanism has an extension process and a retraction process, and the outward sliding here refers to the extension process of the drive end; after the main electric actuator 3 fails, the drive end of the brake release drive mechanism can pull the push plate 2 in the reverse direction to reset the push plate 2 and the push end of the main electric actuator 3.

[0022] The present invention provides a highly reliable integrated electric brake device. Compared with the prior art, during normal operation, the push end of the main electric actuator 3 drives the push plate 2 to extend, so that the push plate 2 is pressed against the carbon disc of the aircraft wheel to achieve aircraft deceleration and braking; after the deceleration is completed, when the main electric actuator 3 fails and the brake cannot be released, the driving end of the brake release mechanism can pull the push plate 2 in the opposite direction to reset the push plate 2 and achieve the brake release process; through the above-mentioned configuration of the present application, the reliability of the electric brake device can be improved.

[0023] In some embodiments, Figures 1 to 7 As shown, the brake release drive mechanism includes at least one auxiliary electric actuator 4, which is connected to the mounting bracket 1, and the driving end of the auxiliary electric actuator 4 is connected to the push plate 2; wherein, the main electric actuator 3 and the auxiliary electric actuator 4 are arranged at intervals along the circumference of the mounting bracket 1; after the main electric actuator 3 fails, the auxiliary electric actuator 4 can drive the push plate 2 to reset, thereby achieving the purpose of brake release.

[0024] Exemplarily, the main electric actuator 3 and the auxiliary electric actuator 4 have the same structure, and the auxiliary electric actuator 4 is taken as an example for explanation; the auxiliary electric actuator 4 includes a reverse planetary roller screw 44, a first housing 41, a stator 42 and a rotor 43; the reverse planetary roller screw 44 includes a nut, a screw and a roller; one end of the screw is connected to the push plate 2; the first housing 41 is connected to the mounting bracket 1, and the nut of the reverse planetary roller screw 44 is rotatably set in the first housing 41; the stator 42 is connected to the inner circumferential wall of the first housing 41; the rotor 43 is rotatably set in the first housing 41, specifically, the rotor 43 is rotatably installed in the stator 42 and is connected to the nut of the reverse planetary roller screw 44. The specific operation process is: the motor stator coil is energized, the motor rotor rotates and drives the nut of the reverse planetary roller screw to rotate synchronously, the reverse planetary roller screw roller rotates and revolves around the reverse planetary roller screw lead screw, and the reverse planetary roller screw lead screw linear output drives the push plate to move.

[0025] Exemplarily, the first housing 41 is integrally arranged with the mounting bracket 1, which not only bears the function of mounting the electric brake device and the aircraft wheel, but also serves as a supporting housing for the electric actuator. This reduces the number of individual parts of the brake device mounting bracket, while improving the compactness and rigidity of the brake device installation. The stator 42 and the rotor 43 are installed in the first housing 41 to form a permanent magnet synchronous servo motor, which can save space in the motor housing and improve the overall compactness of the device.

[0026] Exemplarily, the rotor 43 may be connected to the outer peripheral wall of the nut of the reverse planetary roller screw 44, and the rotor 43 may also serve as the nut of the reverse planetary roller screw 44. When the rotor 43 serves as the nut of the reverse planetary roller screw 44, a threaded hole is provided on the rotor 43, and the roller of the reverse planetary roller screw 44 is threadedly matched with the threaded hole of the rotor 43; during the rotation of the rotor 43, the extension or retraction of the screw can be realized.

[0027] Through the above-mentioned arrangement of the present application, the transition parts between the servo motor rotor 43 and the reverse planetary roller screw 44 nut can be reduced, and the compactness of the transmission connection between the permanent magnet synchronous servo motor and the reverse planetary roller screw 44 can be improved.

[0028] In the electric brake device of the present invention, unlike the traditional electric brake device in which a separate motor housing is provided, the electric actuator housing and the permanent magnet synchronous servo motor housing are integrated into the same part, and the permanent magnet synchronous motor stator of the electric actuator is hot-assembled into the electric actuator housing, i.e., the first housing 41, thereby reducing the housing of the permanent magnet synchronous servo motor and improving the compactness of the permanent magnet synchronous servo motor structure.

[0029] It should be noted that in this device, the efficiency of the reverse planetary roller screw 44 driving the linear motion by rotation is 87%, and the efficiency of the linear motion driving the rotation is 85%, so the forward efficiency and reverse efficiency of the reverse planetary roller screw 44 in this device are equivalent. The main electric actuator 3 and the auxiliary electric actuator 4 are evenly arranged along the circumference of the mounting bracket 1 to make the driving force more balanced.

[0030] By setting up the auxiliary electric actuator 4, a redundant brake release can be achieved. The working principle is: when the main electric actuator 3 fails, or the controller of the main electric actuator 3 fails, the stator 42 of the auxiliary electric actuator 4 drives the rotor 43 to rotate in the opposite direction, thereby retracting the reverse planetary roller screw 44 of the auxiliary electric actuator 4, and then driving the push plate 2 to retract, thereby achieving the brake release process; during the retraction process of the push plate 2, the push plate 2 can provide thrust to the reverse planetary screw of the main electric actuator 3, so that the reverse planetary screw retracts into the first housing 41 of the main electric actuator 3.

[0031] In some embodiments, Figures 1 to 7As shown, a position sensor 45 is connected to the first housing 41, and the position sensor 45 is used to detect the running position of the rotor 43; the position sensor 45 is located at one end of the first housing 41 away from the reverse planetary roller screw 44. By setting the position sensor 45 in the first housing 41, the rotation position of the rotor 43 can be obtained, that is, the rotation coordinates of the rotor 43 can be obtained; the device removes the thrust sensor, and uses the current loop, speed loop and phase current equivalent force negative feedback force loop three-loop control method in control: the current is equivalent force feedback, that is, the phase current signal of the permanent magnet synchronous servo motor is transformed by static coordinate transformation and synchronous rotating coordinate transformation to obtain a high-frequency quadrature axis current, and the high-frequency quadrature axis current is obtained after 100Hz low-pass filtering to obtain a low-frequency quadrature axis current, and the low-frequency quadrature axis current is multiplied by the permanent magnet synchronous servo motor torque coefficient and the screw reduction ratio to obtain an equivalent thrust. Through the above control method of the present application, there is no need to install a force sensor with a high failure rate, and it also avoids setting a complex installation structure, which can improve the reliability of the device. Through the above control method of the present application, the pressure of the push plate 2 can be controlled to adjust the torque of the wheel brake.

[0032] In some embodiments, Figures 1 to 7 As shown, the brake release drive mechanism includes a second shell 5 and a sliding component 6; the second shell 5 is connected to the mounting bracket 1; the second shell 5 has a sliding space inside; one end of the sliding component 6 is slidably arranged in the sliding space; the other end of the sliding component 6 is located outside the second shell 5, and the outer end of the sliding component 6 is connected to the push plate 2; the outer end of the sliding component 6 is the driving end; wherein, an elastic component 7 is provided in the sliding space, and the two ends of the elastic component 7 are respectively connected to the second shell 5 and the sliding component 6; when the outer end of the sliding component 6 slides outward, the elastic component 7 is in a compressed state.

[0033] Exemplarily, the sliding component 6 includes a slide rod 61, a limit plate 62 and a limit block; one end of the slide rod 61 is slidably arranged in the sliding space along the movement direction of the push plate 2, and the other end is located outside the second shell 5; the limit plate 62 is connected to the outer end of the slide rod 61; the limit plate 62 is connected to the push plate 2; the limit block is connected to the inner end of the slide rod 61; wherein, the two ends of the elastic component 7 are respectively connected to the second shell 5 and the limit block; when the push plate 2 moves toward the wheel carbon disc to brake, the slide rod 61 follows the push plate 2 to move, and the elastic component 7 is compressed to generate a preload; when the push plate 2 moves away from the wheel carbon disc to release the brake, the slide rod 61 follows the push plate 2 to move, and the elastic component 7 returns to its original shape.

[0034] Specifically, the limit block can be a nut 8, and an outer thread is provided on the outer peripheral wall of the inner end of the slide rod 61, and the nut 8 is threadedly matched with the inner end of the slide rod 61; the nut 8 can slide in the sliding space of the second housing 5; the nut 8 is in abutment with the elastic component 7; the second housing 5 is integrated with the mounting bracket 1, and the elastic component 7 can be a disc spring, which is sleeved on the sliding component 6, and the disc spring is sleeved on the slide rod 61, and the nut 8 is in abutment with the disc spring; the second housing 5 can be multiple, and they are evenly arranged along the circumference of the mounting bracket 1. By arranging the nut 8 on the sliding component 6, it is easy to install; when the nut 8 moves with the sliding component 6, the nut 8 will compress the disc spring, so that the disc spring generates a pre-tightening force.

[0035] For example, the diameter of the limiting plate 62 is larger than the diameter of the slide bar 61, the push plate 2 has a slot for placing the limiting plate 62, and the bottom of the slot has a through hole for the slide bar 61 to pass through; the thickness of the limiting plate 62 is less than or equal to the depth of the slot. Through the above arrangement, the slide bar 61 can pass through the push plate 2 and be located in the second housing 5; by inserting the limiting plate 62 into the slot, the installation position of the slide bar 61 can be limited. Under the action of the disc spring elastic force, the limiting plate 62 can always press against the bottom of the slot.

[0036] Specifically, when the push plate 2 slides toward the direction of the aircraft wheel carbon disc, the push plate 2 can drive the limit plate 62 to slide, thereby causing the slide rod 61 to extend out of the second shell 5; when the slide rod 61 extends out of the second shell 5, the nut 8 at the inner end of the slide rod 61 compresses the disc spring, and the elastic force of the disc spring will increase.

[0037] By setting the second housing 5, the sliding component 6 and the elastic component 7, a second redundant brake release can be achieved. The working principle is: when both the main electric actuator 3 and the auxiliary electric actuator 4 fail, it is equivalent to that the push plate 2 loses its driving force. At this time, the push plate 2 is reset under the elastic force of the disc spring to achieve the purpose of brake release; during the reset process of the push plate 2, the push plate 2 can push the reverse planetary roller screw 44 of the main electric actuator 3 and the reverse planetary roller screw 44 of the auxiliary electric actuator 4 back into their respective first housings 41. Through the above-mentioned configuration of the present application, the reliability of the device can be further improved.

[0038] In some embodiments, Figures 1 to 7As shown, the push plate 2 has a protrusion 21 connected to the sliding member 6; the setting method of the protrusion 21 on the push plate 2 is obtained through finite element analysis, which can improve the rigidity of the push plate 2, and when the reverse planetary roller screw 44 of the auxiliary electric actuator 4 is actively retracted, the main electric actuator 3 can respond quickly, so the reverse planetary roller screw 44 of the main electric actuator 3 is retracted synchronously. By setting the protrusion 21 on the push plate 2, a countersunk hole can be set at the bottom of the push plate 2, so that the push plate 2 and the sliding member 6 can be connected together by screws. When there are multiple protrusions 21, the driving end of the reverse planetary roller screw 44 is connected between two adjacent protrusions 21 on the adjacent push plate.

[0039] In some embodiments, Figures 1 to 7 As shown, the electric brake device of the present application includes three integrated designs: 1. The first housing 41 of the main electric actuator 3 and the first housing 41 of the auxiliary electric actuator 4 are both integrated with the mounting bracket 1, which not only bears the function of installing the electric brake device and the aircraft wheel, but also serves as a supporting housing for the electric actuator; the number of separate parts of the brake device mounting bracket 1 is reduced, and the compactness and mounting rigidity of the brake device are improved.

[0040] 2. The connection method between the main electric actuator 3 and the reverse planetary roller screw 44 is the same as the connection method between the auxiliary electric actuator 4 and the reverse planetary roller screw 44. This embodiment is described by taking the auxiliary electric actuator 4 as an example; the first housing 41 of the auxiliary electric actuator 4 is integrated with the housing of the permanent magnet synchronous servo motor, which reduces the housing of the permanent magnet synchronous servo motor and improves the compactness of the permanent magnet synchronous servo motor structure.

[0041] 3. The rotor 43 of the permanent magnet synchronous servo motor and the nut of the reverse planetary roller screw 44 are integrated, which reduces the transition parts between the servo motor rotor 43 and the nut of the reverse planetary roller screw 44 and improves the compactness of the transmission connection between the permanent magnet synchronous servo motor and the reverse planetary roller screw 44.

[0042] In addition, through the three-loop control method of the first-degree redundant brake release, the second-degree redundant brake release, and the current loop, speed loop, and phase current equal-effective negative feedback force loop of the present application, there is no need to set up a force sensor, which can increase the reliability of the electric brake device of the present application.

[0043] Based on the same inventive concept, the present application also provides a control method, comprising the following steps: After the main electric actuator 3 pushes the push plate 2, the driving end of the brake release drive mechanism slides outward along with the push plate 2; after the main electric actuator 3 fails, the brake release drive mechanism can pull the push plate 2 in the reverse direction to reset the push plate 2 and the pushing end of the main electric actuator 3.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-reliability integrated electric brake device, characterized in that: It includes a mounting bracket, a push plate and a main electric actuator, wherein the main electric actuator is connected to the mounting bracket, and the push end of the main electric actuator is connected to the push plate; The electric brake device also includes: A brake release driving mechanism is arranged on the mounting bracket; a driving end of the brake release driving mechanism is connected to the push plate; Among them, after the main electric actuator pushes the push plate, the driving end of the brake release drive mechanism slides outward following the push plate; after the main electric actuator fails, the driving end of the brake release drive mechanism can pull the push plate in the opposite direction to reset the push plate and the pushing end of the main electric actuator.

2. A high-reliability integrated electric brake device as claimed in claim 1, characterized in that: The brake release drive mechanism includes at least one auxiliary electric actuator, which is connected to the mounting bracket and whose driving end is connected to the push plate; wherein the main electric actuator and the auxiliary electric actuator are spaced apart along the circumference of the mounting bracket.

3. A high-reliability integrated electric brake device as claimed in claim 2, characterized in that: The auxiliary electric actuator includes: A reverse planetary roller screw comprises a nut, a screw rod and a roller; one end of the screw rod is connected to the push plate; A first housing is connected to the mounting bracket; the nut of the reverse planetary roller screw is rotatably arranged in the first housing; A stator connected to the inner peripheral wall of the first housing; The rotor is rotatably arranged in the first housing and is connected with the nut of the reverse planetary roller screw.

4. A high-reliability integrated electric brake device as claimed in claim 1, characterized in that: The main electric actuators include: A reverse planetary roller screw comprises a nut, a screw rod and a roller; one end of the screw rod is connected to the push plate; A first housing is connected to the mounting bracket; the nut of the reverse planetary roller screw is rotatably arranged in the first housing; A stator connected to the inner peripheral wall of the first housing; The rotor is rotatably arranged in the first housing and is connected with the nut of the reverse planetary roller screw.

5. A high-reliability integrated electric brake device as claimed in claim 3 or 4, characterized in that: A position sensor is connected inside the first housing, and the position sensor is used to detect the operating position of the rotor.

6. A high-reliability integrated electric brake device as claimed in claim 1 or 2, characterized in that: The brake release driving mechanism comprises: A second shell is connected to the mounting bracket; the interior of the second shell has a sliding space; A sliding component, one end of which is slidably disposed in the sliding space; the other end of the sliding component is located outside the second shell, and the outer end of the sliding component is connected to the push plate; Wherein, an elastic component is arranged in the sliding space, and two ends of the elastic component are respectively connected to the second shell and the sliding component; when the outer end of the sliding component slides outward, the elastic component is in a compressed state.

7. A high-reliability integrated electric brake device as claimed in claim 6, characterized in that: The outer peripheral wall of the inner side end of the sliding component is provided with an external thread, and the sliding component is threadedly matched with a nut, and the nut is slidably matched with the second shell; Wherein, the nut is in abutment with the elastic component.

8. A high-reliability integrated electric brake device as claimed in claim 6, characterized in that: The push plate has a protrusion connected to the sliding component.

9. A high-reliability integrated electric brake device as claimed in claim 3 or 4, characterized in that: The first shell is integrally provided with the mounting bracket.

10. A high-reliability integrated electric brake device as claimed in claim 6, characterized in that: The sliding component comprises: A slide rod, one end of which is slidably arranged in the slide space along the movement direction of the push plate, and the other end of which is located outside the second shell; A limit plate connected to the outer end of the slide rod; the limit plate is connected to the push plate; A limit block connected to the inner end of the slide bar; Wherein, two ends of the elastic component are connected to the second shell and the limit block respectively; When the push plate moves toward the wheel carbon disc to brake, the slide bar moves with the push plate, and the elastic component is compressed to generate a preload; when the push plate moves away from the wheel carbon disc to release the brake, the slide bar moves with the push plate, and the elastic component returns to its original shape.

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