Brake electronic auxiliary mechanism

Abstract

The utility model relates to a brake electronic auxiliary mechanism which comprises a shell and a brake oil cylinder piston coaxially connected in the shell in a sliding mode, a plurality of electromagnetic coils are installed at one end of the shell, and the electromagnetic coils are located on the same plane and evenly distributed around the axis of the shell in the circumferential direction at intervals. The brake oil cylinder piston is fixedly connected with a plurality of piston end magnetic steel, the piston end magnetic steel is located on the same plane and evenly distributed around the axis of the brake oil cylinder piston in the circumferential direction at intervals, and the piston end magnetic steel and the electromagnetic coils are oppositely arranged in the axial direction of the shell and the brake oil cylinder piston in a one-to-one correspondence mode. The device can assist a user in braking and quickly releasing the pedal, the difficulty of pedal braking of the user on a high-horsepower tractor is reduced, and potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model relates to the field of tractor braking equipment technology, and in particular to a brake electronic auxiliary mechanism. Background Technology

[0002] Tractor brakes are mostly rear wheel disc brakes, driven by a brake pump to pump brake fluid. With the development of high-horsepower tractors, the brake cylinders have become larger and larger, which is not suitable for all users, especially shorter drivers, who need to use a lot of force to press the brake, which poses a certain safety hazard. Utility Model Content

[0003] This invention provides an electronic brake assist mechanism that can assist users in braking and quickly releasing the pedal, reducing the difficulty for users to brake on high-horsepower tractors and reducing safety hazards.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] An electronic brake assist mechanism includes a housing and a brake cylinder piston coaxially slidably connected within the housing. Multiple electromagnetic coils are mounted at one end of the housing, all located on the same plane and evenly distributed circumferentially around the axis of the housing. Multiple piston-end magnets are fixedly connected to the brake cylinder piston, all located on the same plane and evenly distributed circumferentially around the axis of the brake cylinder piston, and are arranged in a one-to-one correspondence with each of the electromagnetic coils along the axial directions of the housing and the brake cylinder piston.

[0006] The beneficial effects of this invention are as follows: When in use, each electromagnetic coil is energized simultaneously, generating a magnetic field opposite in direction to the magnetic field of each piston-end magnet. This creates a repulsive force between the two, causing the piston-end magnet to move the brake cylinder piston away from the housing, pushing the brake disc to compress the brake pads and achieve braking. When the current direction of each electromagnetic coil is reversed, generating a magnetic field in the same direction as the magnetic field of each piston-end magnet, an attractive force is generated between them. This causes the piston-end magnet to move the brake cylinder piston towards the housing, preventing the brake disc from compressing the brake pads and accelerating the brake cylinder piston's reset. This assists the user in braking and quickly releasing the pedal, reducing the difficulty of pedal braking on high-horsepower tractors and minimizing safety hazards.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the housing includes an outer ring housing and an inner ring housing that is fixedly connected to the inner side of one end of the outer ring housing. Each of the electromagnetic coils is installed in the inner ring housing. The brake cylinder piston includes a piston body and a piston ring. The piston body is slidably connected to the inner side of the other end of the outer ring housing, and one end of the piston ring is fixedly connected to the piston body, while the other end is slidably connected to the inner side of the inner ring housing. Each of the piston end magnets is fixedly connected to the piston body.

[0009] The beneficial effect of adopting the above-mentioned further scheme is that, during use, each electromagnetic coil forms a ring magnetic field, which interacts with the ring magnetic field formed by each piston-end magnet, causing the piston-end magnet to drive the brake cylinder piston to move axially in the direction away from or close to the housing, thereby realizing the braking or acceleration of the brake cylinder piston reset.

[0010] Furthermore, one end of the inner ring housing in the axial direction is provided with a plurality of mounting slots, each of which is evenly distributed on the circumference coaxial with the inner ring housing, and each of the electromagnetic coils is installed in the respective mounting slot.

[0011] The beneficial effect of adopting the above-mentioned further solution is that each electromagnetic coil is installed through each mounting slot, and the mounting slot is used to limit the corresponding electromagnetic coil, so as to ensure the stability of the position during use.

[0012] Furthermore, the outer ring housing has a radially penetrating wire harness interface, and the inner side of the outer ring housing has a wiring groove, which is connected to both the wire harness interface and each of the mounting grooves.

[0013] The beneficial effects of adopting the above-mentioned further solution are as follows: the wire harness is introduced into the outer ring housing through the wire harness interface and wired along the wiring groove. Then, each of the wound electromagnetic coils is installed in its respective mounting groove. When in use, each electromagnetic coil is energized and generates a magnetic field that can change the movement of the brake cylinder piston. At this time, the force can be changed by changing the current of the electromagnetic coil; the direction of the magnetic field can be changed by changing the direction of the coil current, thereby changing the direction of the movement of the brake cylinder piston.

[0014] Furthermore, the piston body has multiple mounting ports on its outer side, each mounting port being evenly distributed on a circumference coaxial with the piston body and connected to the side of the piston body facing the inner ring housing. Each piston end magnet is fixed in its respective mounting port.

[0015] The advantages of adopting the above-mentioned further solution are: each piston end magnet can be installed through each mounting port, and the mounting ports are simultaneously opened on the outer side of the piston body and the side facing the inner ring shell, which makes disassembly and assembly convenient, and can ensure that each piston end magnet is always stably installed on the piston body during the interaction between the magnetic field generated by each piston end magnet and the magnetic field generated by each electromagnetic coil.

[0016] Furthermore, one end of the inner ring housing in the axial direction is provided with a plurality of circumferentially distributed lower pin holes, each of which is fixedly connected to a piston guide pin. The piston body is provided with a plurality of upper pin holes, each of which is aligned with and connected to each of the lower pin holes. The end of each piston guide pin is inserted into the corresponding upper pin hole.

[0017] The beneficial effect of adopting the above-mentioned further scheme is that when the brake cylinder piston moves relative to the housing under the action of a magnetic field, the piston guide pin can always guide the movement of the housing, ensuring the consistency of the front and rear axial movement of the housing.

[0018] Furthermore, multiple pressure grooves are provided on the other end of the outer ring housing, and each pressure groove is connected to the inner side of the outer ring housing. Multiple pressure plates are fixedly connected to the outer side of the piston body, and each pressure plate is adapted to and slidably connected to each pressure groove.

[0019] The beneficial effect of adopting the above-mentioned further solution is that when the brake cylinder piston is installed in the housing, the pressure groove can guide the corresponding pressure plate. By guiding the brake cylinder piston, it is ensured that after the brake cylinder piston is installed, each electromagnetic coil and each piston end magnet are in a positive alignment state, so as to ensure that the moving brake cylinder piston can apply positive pressure to the brake disc under the action of the magnetic field.

[0020] Furthermore, each of the pressure grooves has an insertion hole at its bottom, and each insertion hole is fixedly connected to a pressure plate positioning pin. Each pressure plate has a through positioning hole, and each pressure plate positioning pin is inserted into the corresponding positioning hole.

[0021] The beneficial effects of adopting the above-mentioned further solution are: when the brake cylinder piston is installed in the housing, the positioning pins of each pressure plate guide and position the brake cylinder piston by inserting them into the corresponding positioning holes, and prevent the brake cylinder piston from rotating relative to the housing during movement, and prevent the electromagnetic coil from being misaligned with the corresponding piston end magnet.

[0022] Furthermore, an oil inlet and an oil outlet are fixedly installed on the outer side of the outer ring housing, and both the oil inlet and the oil outlet are connected to the area between the inner side of the outer ring housing and the outer side of the piston body.

[0023] The beneficial effect of adopting the above-mentioned further solution is that lubricating oil is added through the oil inlet to the mating surface of the housing and the brake cylinder piston to achieve lubrication.

[0024] Furthermore, an outer sealing ring is installed on the inner side of the outer ring housing, and the outer sealing ring abuts against the outer side of the piston body. An inner sealing ring is installed on the inner side of the inner ring housing, and the inner sealing ring abuts against the outer side of the piston ring. The area between the inner side of the outer ring housing and the outer side of the piston body is located between the outer sealing ring and the inner sealing ring.

[0025] The beneficial effects of adopting the above-mentioned further solution are: to achieve sealing between the outer ring housing and the piston body through the outer sealing ring, and to achieve sealing between the inner ring housing and the piston ring through the inner sealing ring, thereby preventing oil leakage and preventing external impurities from entering the mating sliding surface. Attached Figure Description

[0026] Figure 1 This is a top view of the electronic brake assist mechanism of this utility model;

[0027] Figure 2 For the present utility model Figure 1 Sectional view along the middle AA direction;

[0028] Figure 3 For the present utility model Figure 2 Enlarged view of the middle left section;

[0029] Figure 4 For the present utility model Figure 2 Enlarged view of the middle right section;

[0030] Figure 5 This is a side view of the electronic brake assist mechanism of this utility model;

[0031] Figure 6 For the present utility model Figure 5 Sectional view along the BB direction;

[0032] Figure 7 This is an exploded view of the electronic brake assist mechanism of this utility model in cross-section.

[0033] Figure 8 For the present utility model Figure 7 Enlarged view of section C.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Housing; 11. Outer ring housing; 111. Wiring harness interface; 112. Wiring groove; 113. Pressure groove; 114. Insertion hole; 115. Oil inlet; 116. Oil drain port; 117. Outer sealing ring; 118. Inner sealing ring; 12. Inner ring housing; 121. Mounting groove; 122. Lower pin hole;

[0036] 2. Brake cylinder piston; 21. Piston body; 211. Mounting port; 212. Upper pin hole; 213. Pressure plate; 214. Positioning hole; 22. Piston ring;

[0037] 3. Electromagnetic coil;

[0038] 4. Piston end magnet;

[0039] 5. Piston guide pin;

[0040] 6. Pressure plate positioning pin. Detailed Implementation

[0041] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0042] Example 1

[0043] like Figures 1 to 8 An electronic brake assist mechanism includes a housing 1 and a brake cylinder piston 2 coaxially slidably connected within the housing 1. Multiple electromagnetic coils 3 are mounted on one end of the housing 1, all located on the same plane and evenly distributed circumferentially around the axis of the housing 1. Multiple piston-end magnets 4 are fixedly connected to the brake cylinder piston 2, all located on the same plane and evenly distributed circumferentially around the axis of the brake cylinder piston 2, and are arranged in a one-to-one correspondence with each electromagnetic coil 3 along the axial direction of the housing 1 and the brake cylinder piston 2.

[0044] The beneficial effects of this embodiment are as follows: When in use, each electromagnetic coil 3 is energized simultaneously, generating a magnetic field opposite in direction to the magnetic field of each piston-end magnet 4. A repulsive force is generated between the two, causing the piston-end magnet 4 to drive the brake cylinder piston 2 to move simultaneously away from the housing 1, pushing the brake disc to squeeze the brake pads and achieve the braking function. When each electromagnetic coil 3 changes the current direction and generates a magnetic field in the same direction as the magnetic field of each piston-end magnet 4, an attractive force is generated between the two, causing the piston-end magnet 4 to drive the brake cylinder piston 2 to move simultaneously towards the housing 1. The brake disc no longer squeezes the brake pads, accelerating the reset of the brake cylinder piston 2, thereby assisting the user in braking and quickly releasing the pedal, reducing the difficulty for the user to perform pedal braking on a high-horsepower tractor, and reducing safety hazards.

[0045] The number of each electromagnetic coil 3 and each piston-end magnet 4 can be two, three, four, or five, etc. In the figure, both are shown as three.

[0046] Example 2

[0047] like Figures 2 to 4 Based on Embodiment 1, the housing 1 includes an outer ring housing 11 and an inner ring housing 12 which is fixedly connected to the inner side of one end of the outer ring housing 11. Each electromagnetic coil 3 is installed in the inner ring housing 12. The brake cylinder piston 2 includes a piston body 21 and a piston ring 22. The piston body 21 is slidably connected to the inner side of the other end of the outer ring housing 11, and one end of the piston ring 22 is fixedly connected to the piston body 21, while the other end is slidably connected to the inner side of the inner ring housing 12. Each piston end magnet 4 is fixedly connected to the piston body 21.

[0048] The beneficial effect of adopting the preferred solution in the above embodiments is that, in use, each electromagnetic coil 3 forms a ring magnetic field, which interacts with the ring magnetic field formed by each piston end magnet 4, causing the piston end magnet 4 to drive the brake cylinder piston 2 to move axially in the direction away from or close to the housing 1, thereby realizing the braking or acceleration of the brake cylinder piston 2 to reset.

[0049] Example 3

[0050] like Figure 2 and Figure 3 Based on embodiments 1 and 2, a plurality of mounting slots 121 are provided at one end of the inner ring housing 12 in the axial direction. Each mounting slot 121 is evenly distributed on the circumference coaxial with the inner ring housing 12, and each electromagnetic coil 3 is installed in each mounting slot 121.

[0051] The advantage of the preferred solution in the above embodiments is that each electromagnetic coil 3 is installed through each mounting slot 121, and the mounting slot 121 is used to limit the corresponding electromagnetic coil 3, so as to ensure the stability of the position during use.

[0052] Example 4

[0053] like Figure 2 , Figure 4 , Figure 7 as well as Figure 8 Based on embodiments 1-3, the outer ring housing 11 is radially provided with a wire harness interface 111, and the inner side of the outer ring housing 11 is provided with a wiring groove 112, which is connected to both the wire harness interface 111 and each mounting groove 121.

[0054] The beneficial effect of adopting the preferred solution in the above embodiments is that the wire harness enters the outer ring housing 11 through the wire harness interface 111 and is wired along the wiring groove 112. Then, each of the wound electromagnetic coils 3 is installed in the mounting groove 121. When in use, each electromagnetic coil 3 is energized and generates a magnetic field that can change the movement of the brake cylinder piston 2. At this time, the force can be changed by changing the current of the electromagnetic coil; the direction of the magnetic field can be changed by changing the direction of the coil current, thereby changing the direction of movement of the brake cylinder piston 2.

[0055] Example 5

[0056] like Figure 2 and Figure 3 Based on embodiments 1-4, a plurality of mounting ports 211 are provided on the outer side of the piston body 21. Each mounting port 211 is evenly distributed on the circumference coaxial with the piston body 21 and is connected to the side of the piston body 21 facing the inner ring housing 12. Each piston end magnet 4 is fixed in each mounting port 211.

[0057] The advantages of the preferred solution in the above embodiments are that each piston end magnet 4 is installed through each mounting port 211, and the mounting port 211 is simultaneously opened on the outer side of the piston body 21 and the side facing the inner ring shell 12, which makes disassembly and assembly convenient, and can ensure that each piston end magnet 4 is always stably installed on the piston body 21 during the interaction between the magnetic field generated by each piston end magnet 4 and the magnetic field generated by each electromagnetic coil 3.

[0058] Example 6

[0059] like Figure 2 and Figure 4 Based on embodiments 1-5, one end of the inner ring housing 12 in the axial direction is provided with a plurality of circumferentially distributed lower pin holes 122. Each lower pin hole 122 is fixedly connected to a piston guide pin 5. The piston body 21 is provided with a plurality of upper pin holes 212. Each upper pin hole 212 is arranged opposite to and connected to each lower pin hole 122. The end of each piston guide pin 5 is inserted into the corresponding upper pin hole 212.

[0060] The beneficial effect of adopting the preferred solution in the above embodiments is that when the brake cylinder piston 2 moves relative to the housing 1 under the action of a magnetic field, the piston guide pin 5 can always guide the movement of the housing 1, ensuring the consistency of the front and rear axial movement of the housing 1.

[0061] Each piston guide pin 5 can be fixedly installed by interference fit with the corresponding lower pin hole 122.

[0062] Example 7

[0063] like Figure 1 , Figure 7 as well as Figure 8 Based on embodiments 1-6, a plurality of pressure grooves 113 are provided on the other end of the outer ring housing 11, and each pressure groove 113 is connected to the inner side of the outer ring housing 11. A plurality of pressure plates 213 are fixedly connected to the outer side of the piston body 21, and each pressure plate 213 is adapted to and slidably connected to each pressure groove 113.

[0064] The beneficial effect of the preferred solution in the above embodiments is that when the brake cylinder piston 2 is installed on the housing 1, the pressure groove 113 can guide the corresponding pressure plate 213. By guiding the brake cylinder piston 2, it is ensured that after the brake cylinder piston 2 is installed, each electromagnetic coil 3 and each piston end magnet 4 are in a positive alignment state, so as to ensure that the moving brake cylinder piston 2 can apply positive pressure to the brake disc under the action of the magnetic field.

[0065] Based on the above embodiments, each pressing groove 113 has a flared structure with an opening size larger than the bottom size of the groove, so as to ensure that the pressing plate 213 can be pressed in smoothly.

[0066] Example 8

[0067] like Figure 7 and Figure 8 Based on embodiments 1-7, each pressure groove 113 has an insertion hole 114 at the bottom of the groove, each insertion hole 114 is fixedly connected to a pressure plate positioning pin 6, each pressure plate 213 has a through positioning hole 214, and each pressure plate positioning pin 6 is inserted into the corresponding positioning hole 214.

[0068] The beneficial effect of adopting the preferred solution in the above embodiments is that when the brake cylinder piston 2 is installed on the housing 1, each pressure plate positioning pin 6 guides and positions the brake cylinder piston 2 by inserting it into the corresponding positioning hole 214, and prevents the brake cylinder piston 2 from rotating relative to the housing 1 during the movement, and prevents the electromagnetic coil 3 from being misaligned with the corresponding piston end magnet 4.

[0069] Each pressure plate positioning pin 6 can be fixedly installed by interference fit with the corresponding insertion hole 114.

[0070] Example 9

[0071] like Figure 1 and Figure 6 Based on embodiments 1-8, an oil inlet 115 and an oil outlet 116 are fixedly installed on the outer side of the outer ring housing 11. Both the oil inlet 115 and the oil outlet 116 are connected to the area between the inner side of the outer ring housing 11 and the outer side of the piston body 21.

[0072] The advantages of the preferred embodiment described above are that lubricating oil is added to the mating surface of the housing 1 and the brake cylinder piston 2 through the oil inlet 115 to achieve lubrication. When the brake cylinder piston 2 moves relative to the housing 1, the lubricating oil makes its movement smoother, reduces friction and wear between components, extends the service life of related components, and reduces maintenance and replacement costs. At the same time, the oil has good thermal conductivity, which can quickly conduct the heat generated by the electromagnetic coil 3 through the oil drain port 116 to help reduce the temperature of the coil. In addition, the oil can form a protective film on the surface of components such as the electromagnetic coil 3 and the piston end magnet 4, isolating moisture, oxygen and other corrosive substances in the air, effectively preventing these components from rusting and corroding. Furthermore, during the operation of the brake, a certain amount of vibration and impact may be generated. The oil has a certain buffering performance, which can absorb some of the vibration and impact energy, reduce the impact on components such as the electromagnetic coil 3 and the piston end magnet 4, reduce the risk of component damage, and also help reduce the noise generated during the operation of the brake.

[0073] Example 10

[0074] like Figures 2 to 4 Based on embodiments 1-9, an outer sealing ring 117 is installed on the inner side of the outer ring housing 11, and the outer sealing ring 117 abuts against the outer side of the piston body 21. An inner sealing ring 118 is installed on the inner side of the inner ring housing 12, and the inner sealing ring 118 abuts against the outer side of the piston ring 22. The area between the inner side of the outer ring housing 11 and the outer side of the piston body 21 is located between the outer sealing ring 117 and the inner sealing ring 118.

[0075] The beneficial effect of adopting the preferred solution in the above embodiments is that the outer ring housing 11 and the piston body 21 are sealed by the outer sealing ring 117, and the inner ring housing 12 and the piston ring 22 are sealed by the inner sealing ring 118, so as to prevent oil leakage and prevent external impurities from entering the mating sliding surface.

[0076] The outer sealing ring 117 and the inner sealing ring 118 can be made of materials such as rubber and silicone.

[0077] Based on the above embodiment, annular grooves are provided on the inner side of the outer ring housing 11 and the inner ring housing 12 to fix the outer sealing ring 117 and the inner sealing ring 118 respectively.

[0078] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0081] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "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," "below," and "under" 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.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0083] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A brake electronic assist mechanism, characterized in that, The device includes a housing (1) and a brake cylinder piston (2) coaxially slidably connected within the housing (1). One end of the housing (1) is equipped with multiple electromagnetic coils (3). Each electromagnetic coil (3) is located on the same plane and is evenly distributed around the axis of the housing (1). The brake cylinder piston (2) is fixedly connected with multiple piston end magnets (4). Each piston end magnet (4) is located on the same plane and is evenly distributed around the axis of the brake cylinder piston (2). The magnets are arranged in a one-to-one correspondence with each electromagnetic coil (3) along the axial direction of the housing (1) and the brake cylinder piston (2).

2. The electronic brake assist mechanism according to claim 1, characterized in that, The housing (1) includes an outer ring housing (11) and an inner ring housing (12) which is fixedly connected to the inner side of one end of the outer ring housing (11). Each of the electromagnetic coils (3) is installed in the inner ring housing (12). The brake cylinder piston (2) includes a piston body (21) and a piston ring (22). The piston body (21) is slidably connected to the inner side of the other end of the outer ring housing (11). One end of the piston ring (22) is fixedly connected to the piston body (21), and the other end is slidably connected to the inner side of the inner ring housing (12). Each of the piston end magnets (4) is fixedly connected to the piston body (21).

3. The electronic brake assist mechanism according to claim 2, characterized in that, The inner ring housing (12) has a plurality of mounting slots (121) at one end in the axial direction. Each mounting slot (121) is evenly distributed on the circumference coaxial with the inner ring housing (12), and each electromagnetic coil (3) is installed in each mounting slot (121).

4. The electronic brake assist mechanism according to claim 3, characterized in that, The outer ring housing (11) has a wire harness interface (111) that extends radially through it. The inner side of the outer ring housing (11) has a wiring groove (112) that connects to both the wire harness interface (111) and each of the mounting grooves (121).

5. The electronic brake assist mechanism according to claim 2, characterized in that, The piston body (21) has multiple mounting ports (211) on its outer side. Each mounting port (211) is evenly distributed on the circumference coaxial with the piston body (21) and connected to the side of the piston body (21) facing the inner ring housing (12). Each piston end magnet (4) is fixed in each mounting port (211).

6. The electronic brake assist mechanism according to claim 2, characterized in that, The inner ring housing (12) has a plurality of circumferentially distributed lower pin holes (122) at one end in the axial direction. Each lower pin hole (122) is fixedly connected to a piston guide pin (5). The piston body (21) has a plurality of upper pin holes (212). Each upper pin hole (212) is directly opposite to and connected to each lower pin hole (122). The end of each piston guide pin (5) is inserted into the corresponding upper pin hole (212).

7. The electronic brake assist mechanism according to claim 2, characterized in that, The outer ring housing (11) has multiple pressure grooves (113) on the other side, and each pressure groove (113) is connected to the inner side of the outer ring housing (11). Multiple pressure plates (213) are fixedly connected to the outer side of the piston body (21), and each pressure plate (213) is adapted to and slidably connected to each pressure groove (113).

8. The electronic brake assist mechanism according to claim 7, characterized in that, Each of the pressure grooves (113) has an insertion hole (114) at the bottom, and each insertion hole (114) is fixedly connected to a pressure plate positioning pin (6). Each pressure plate (213) has a through positioning hole (214), and each pressure plate positioning pin (6) is inserted into the corresponding positioning hole (214).

9. A brake electronic assist mechanism according to any one of claims 2-8, characterized in that, An oil inlet (115) and an oil outlet (116) are fixedly installed on the outer side of the outer ring housing (11). The oil inlet (115) and the oil outlet (116) are both connected to the area between the inner side of the outer ring housing (11) and the outer side of the piston body (21).

10. The electronic brake assist mechanism according to claim 9, characterized in that, An outer sealing ring (117) is installed on the inner side of the outer ring housing (11), and the outer sealing ring (117) abuts against the outer side of the piston body (21). An inner sealing ring (118) is installed on the inner side of the inner ring housing (12), and the inner sealing ring (118) abuts against the outer side of the piston ring (22). The area between the inner side of the outer ring housing (11) and the outer side of the piston body (21) is located between the outer sealing ring (117) and the inner sealing ring (118).

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