Electric brake and vehicle

Abstract

The invention discloses an electric brake and a vehicle, and relates to the technical field of electric brakes, the electric brake comprises a shell, a cover body, a motor, a speed reduction assembly and a positioning piece, and the shell is provided with a first positioning groove; the cover body and the shell are matched to form a containing cavity, the side, away from the shell, of the cover body protrudes to form a concave cavity facing an opening of the shell, and a second positioning groove is formed in the inner wall of the cover body; the motor is arranged in the accommodating cavity, comprises a rotor and is provided with a first positioning hole; the speed reduction assembly is arranged in the containing cavity and comprises an intermediate shaft and a gear set arranged on the intermediate shaft in a sleeving mode, one end of the intermediate shaft is arranged on the motor, the other end of the intermediate shaft extends into the concave cavity and is in positioning fit with the concave cavity, and the gear set is connected with the rotor in an engaged mode. One end of the positioning piece penetrates through the first positioning hole and is inserted into the first positioning groove, and the other end of the positioning piece is inserted into the second positioning groove, so that the shell, the cover body and the motor are connected; the size of the electric brake can be reduced, and the manufacturing cost of the electric brake can be reduced.

Description

Technical Field

[0001] This invention relates to the field of electric brake technology, and particularly to an electric brake and a vehicle. Background Technology

[0002] In traditional technical solutions, electric brakes consist of three parts: a lower housing, an intermediate plate, and an upper housing. Two sets of locating pins are used to position and assemble these parts. The intermediate plate's main function is to guide the rotating components of the reduction gear and provide a channel for the mechanical connection between the electric motor rotor and the reduction gear. However, using an intermediate plate to achieve a fixed connection between the rotor and the reduction gear inevitably increases the size and manufacturing cost of the electric brake. Summary of the Invention

[0003] The main objective of this invention is to provide an electric brake and vehicle that aims to reduce the size of the electric brake and lower its manufacturing cost.

[0004] To achieve the above objectives, the present invention provides an electric brake comprising: The housing is provided with a first positioning groove; The cover body cooperates with the shell to form a receiving cavity. The cover body protrudes towards the side away from the shell, forming a concave cavity facing the opening of the shell. The inner wall of the cover body is provided with a second positioning groove. An electric motor is disposed within the accommodating cavity, the electric motor includes a rotor, and the electric motor is provided with a first positioning hole; A speed reduction assembly is disposed within the accommodating cavity. The speed reduction assembly includes an intermediate shaft and a gear set sleeved on the intermediate shaft. One end of the intermediate shaft is disposed in the motor, and the other end extends into the cavity and is positioned and engaged with the cavity. The gear set is meshed with the rotor. A positioning component, one end of which passes through the first positioning hole and is inserted into the first positioning groove, and the other end of which is inserted into the second positioning groove, so as to connect the housing, the cover and the motor.

[0005] In one embodiment, the motor further includes a first end cover, a second end cover, and a stator. The first end cover and the second end cover are disposed opposite to each other. One end of the stator is fixed inside the first end cover, and the other end is fixed inside the second end cover. The second end cover is provided with a mounting port. One end of the rotor is wound around the inner circumference of the stator, and the other end extends out through the mounting port. The intermediate shaft is disposed on the side of the second end cover away from the first end cover.

[0006] In one embodiment, the rotor includes a motor shaft and a rotor winding sleeved on the motor shaft. The motor shaft includes a first shaft segment and a second shaft segment. The first shaft segment passes through the mounting port and is connected to the second shaft segment. The second shaft segment is meshed with the gear set.

[0007] In one embodiment, the housing is provided with a first mounting groove, the motor is mounted in the first mounting groove, the motor is provided with a circuit board, and the circuit board is provided with a first through hole for the rotor to pass through and a second through hole for the intermediate shaft to pass through.

[0008] In one embodiment, the circuit board is provided with a second positioning hole, one end of the positioning member passes through the second positioning hole and the first positioning hole and is inserted into the first positioning groove, and the other end is inserted into the second positioning groove to connect the housing, the motor, the circuit board and the cover.

[0009] In one embodiment, the second end cap has a positioning portion protruding outward, the positioning portion having a first positioning hole, the edge of the circuit board having a second positioning hole corresponding to the position of the first positioning hole, the inner sidewall of the housing having a first positioning groove protruding corresponding to the position of the first positioning hole, and the inner sidewall of the cover having a second positioning groove protruding corresponding to the position of the first positioning hole.

[0010] In one embodiment, the positioning part is further provided with a first fixing hole, the edge of the circuit board is provided with a second fixing hole corresponding to the position of the first fixing hole, and the inner sidewall of the housing is provided with a fixing groove corresponding to the position of the first fixing hole; the electric brake further includes a fastener, the fastener passes through the first fixing hole and the second fixing hole and is fixed in the fixing groove, so as to fix the circuit board and the motor to the housing.

[0011] In one embodiment, there are multiple first fixing holes, second fixing holes, fixing slots, and fasteners; multiple first fixing holes are equidistantly spaced along the circumference of the motor in the positioning part; multiple fasteners are correspondingly inserted into the corresponding first fixing holes and second fixing holes, and cooperate with the corresponding fixing slots to fix the circuit board and the motor to the housing.

[0012] In one embodiment, the positioning element is a positioning pin.

[0013] The present invention also proposes a vehicle including the electric brake as described above.

[0014] The electric brake in this invention eliminates the intermediate plate in traditional structures. A receiving cavity is formed by the cooperation of the housing and the cover, with a recessed cavity on the cover facing the housing opening to accommodate and position the end of the intermediate shaft of the deceleration assembly, thus replacing the positioning and guiding function of the intermediate plate. Simultaneously, the first positioning groove on the housing, the second positioning groove inside the cover, and the first positioning hole on the motor are sequentially connected by positioning components, achieving a stable assembly between the housing, cover, and motor, eliminating the need for the two sets of positioning pins used for intermediate plate positioning in traditional structures. This structure not only reduces the number of parts but also lowers assembly complexity, thereby reducing the size of the electric brake, lowering its manufacturing cost, and improving structural compactness and production economy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of the electric brake provided by the present invention; Figure 2 for Figure 1 Exploded view; Figure 3 for Figure 2 A schematic diagram of the structure of the middle cover.

[0017] Explanation of icon numbers: 100. Electric brake; 1001. Receiving cavity; 1. Housing; 101. First positioning groove; 102. First mounting groove; 103. Fixing groove; 2. Cover; 201. Second positioning groove; 202. Second mounting groove; 203. Cavity; 3. Motor; 301. First positioning hole; 302. First fixing hole; 303. Mounting opening; 31. Rotor; 311. Motor shaft; 3111. First shaft segment; 3112. Second shaft segment; 32. First end cover; 33. Second end cover; 34. Stator; 35. Positioning part; 4. Reduction assembly; 41. Intermediate shaft; 42. Gear set; 5. Positioning component; 6. Circuit board; 601. First through hole; 602. Second through hole; 603. Second positioning hole; 604. Second fixing hole; 7. Fastener.

[0018] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0022] In traditional technical solutions, electric brakes consist of three parts: a lower housing, an intermediate plate, and an upper housing. Two sets of locating pins are used to position and assemble these parts. The intermediate plate's main function is to guide the rotating components of the reduction gear and provide a channel for the mechanical connection between the electric motor rotor and the reduction gear. However, using an intermediate plate to achieve a fixed connection between the rotor and the reduction gear inevitably increases the size and manufacturing cost of the electric brake.

[0023] Therefore, the present invention proposes an electric brake 100, which aims to reduce the size of the electric brake 100 and lower its manufacturing cost.

[0024] Please see Figures 1 to 3 In one embodiment of the present invention, the electric brake 100 includes: The housing 1 is provided with a first positioning groove 101; The cover 2, together with the shell 1, forms a receiving cavity 1001. The cover 2 protrudes toward the side away from the shell 1, forming a concave cavity 203 that opens toward the shell 1. The inner wall of the cover 2 is provided with a second positioning groove 201. Motor 3 is located in the accommodating cavity 1001. Motor 3 includes a rotor 31 and is provided with a first positioning hole 301. The speed reduction assembly 4 is located in the accommodating cavity 1001. The speed reduction assembly 4 includes an intermediate shaft 41 and a gear set 42 sleeved on the intermediate shaft 41. One end of the intermediate shaft 41 is located in the motor 3, and the other end extends into the cavity 203 and is positioned and engaged with the cavity 203. The gear set 42 is meshed with the rotor 31. Positioning component 5, one end of which passes through the first positioning hole 301 and is inserted into the first positioning groove 101, and the other end is inserted into the second positioning groove 201 to connect the housing 1, the cover 2 and the motor 3.

[0025] In this embodiment, the housing 1 serves as the main support structure of the electric brake 100 and can be made of metal or high-strength engineering plastic, possessing good mechanical strength and sealing performance. A first positioning groove 101 is provided on the side of the housing 1 facing the cover 2, for insertion and engagement with the positioning member 5. The shape of the first positioning groove 101 can be circular, square, or polygonal, specifically designed to match the shape of the positioning member 5.

[0026] The cover 2, as the external enclosure of the electric brake 100, forms a receiving cavity 1001 with the housing 1 to accommodate the motor 3 and the reduction gear assembly 4. The cover 2 protrudes away from its center to create a recess 203 that opens towards the center of the cover 2, used to position the end of the intermediate shaft 41. The cavity wall of the recess 203 may have a positioning mating surface to simultaneously achieve axial and radial positioning of the intermediate shaft 41. The recess 203 may be an open-mouth structure integrally formed with the cover 2. By providing the recess 203, the rotational guidance and positioning functions performed by the intermediate plate in the traditional structure can be replaced, thereby reducing the number of parts and improving the structural compactness of the electric brake 100. Furthermore, a second positioning groove 201 is provided on the inner wall of the cover 2 for insertion and mating with the positioning member 5. The shape of the second positioning groove 201 can also be circular, square, or polygonal, specifically designed to match the shape of the positioning member 5.

[0027] The motor 3 is housed in the accommodating cavity 1001 and serves as the power source for the electric brake 100. The motor 3 includes a rotor 31, which is the rotating part of the motor 3 and can be constructed from permanent magnet material and a metal support, possessing good magnetic properties and rotational inertia. The motor 3 has a first positioning hole 301, which is a through hole penetrating the end face of the motor 3. The shape of the first positioning hole 301 can match the shape of the positioning member 5, such as circular, square, or polygonal, and is not specifically limited here. The first positioning hole 301 is coaxially aligned with the first positioning groove 101 and the second positioning groove 201 to achieve an insertion fit with the positioning member 5.

[0028] The reduction gear assembly 4 is disposed within the accommodating cavity 1001 to reduce the high-speed rotation of the motor 3 and amplify the torque output. The reduction gear assembly 4 includes an intermediate shaft 41 and a gear set 42. The intermediate shaft 41 serves as the input shaft of the reduction gear assembly 4, with one end connected to the motor 3 and the other end extending into the cavity 203, where it is positioned and engaged with the cavity 203. The end of the intermediate shaft 41 may be provided with a positioning structure, such as an outer cylindrical surface or a positioning flange, which forms a tight fit with the positioning mating surface of the cavity wall of the cavity 203, thereby achieving axial and radial positioning. The gear set 42 includes a main gear and a driven gear. The main gear meshes with the driven gear, and the main gear is sleeved on the intermediate shaft 41, meshing with the rotor 31. By positioning the intermediate shaft 41 within the cavity 203, the guiding effect of the intermediate plate on the intermediate shaft 41 in the traditional structure can be eliminated, thereby reducing the size of the electric brake 100.

[0029] The positioning component 5 is a key component for achieving the integrated connection of the housing 1, cover 2, and motor 3. Its structure can be a pin-shaped or columnar connector, such as a positioning pin. The positioning component 5 can be made of metal or high-strength plastic, possessing good wear resistance and shear resistance. One end of the positioning component 5 passes through the first positioning hole 301 on the motor 3 and inserts into the first positioning groove 101 on the housing 1, while the other end inserts into the second positioning groove 201 inside the cover 2. Through this through-type connection, the positioning component 5 firmly connects the housing 1, cover 2, and motor 3 together, thus eliminating the need for two sets of positioning pins used for positioning the intermediate plate in traditional structures. This reduces the number of parts, lowers the assembly difficulty of the electric brake 100, and improves the overall structural stability and compactness.

[0030] In summary, this embodiment achieves a high degree of structural integration and functional fusion by eliminating the intermediate plate, directly positioning the end of the intermediate shaft 41 using the cavity 203, and integrating the housing 1, cover 2, and motor 3 using the positioning component 5. This not only reduces the size and manufacturing cost of the electric brake 100 but also improves its assembly efficiency and structural reliability.

[0031] Please see Figures 1 to 3In one embodiment of the present invention, the motor 3 and the intermediate shaft 41 are integrally formed.

[0032] In this embodiment, the motor 3 and the intermediate shaft 41 are integrally formed. This structure integrates the originally separate motor 3 and intermediate shaft 41 into a single component, using precision casting, powder metallurgy, or integral machining processes to form a highly integrated composite rotating shaft. This composite structure not only ensures coaxiality and transmission accuracy between the motor output and the reduction input, but also eliminates the need for splines, keyways, or interference fits required in traditional assembly, avoiding transmission errors and mechanical failures caused by loose connections or wear. Furthermore, by eliminating the connection interface between the motor 3 and the intermediate shaft 41, energy loss during transmission is reduced, improving transmission efficiency.

[0033] Please see Figures 1 to 3 In one embodiment of the present invention, the motor 3 further includes a first end cover 32, a second end cover 33, and a stator 34. The first end cover 32 and the second end cover 33 are disposed opposite to each other. One end of the stator 34 is fixed inside the first end cover 32, and the other end is fixed inside the second end cover 33. The second end cover 33 is provided with a mounting port 303. One end of the rotor 31 is wound around the inner circumference of the stator 34, and the other end extends out through the mounting port 303. The intermediate shaft 41 is disposed on the side of the second end cover 33 opposite to the first end cover 32.

[0034] In this embodiment, the motor 3 includes not only a rotor 31, but also a first end cover 32, a second end cover 33, and a stator 34. The first end cover 32 and the second end cover 33 are arranged opposite to each other and together form the outer shell structure of the motor 3. One end of the stator 34 is fixed inside the first end cover 32, and the other end is fixed inside the second end cover 33, thereby achieving axial clamping and circumferential positioning of the stator 34 and ensuring its stable installation. The rotor 31 is coaxially arranged on the inner circumference of the stator 34. One end of the rotor 31 is wound around the inner circumference space of the stator 34 to form an electromagnetic drive structure, and the other end extends outward through the mounting port 303 on the second end cover 33 so as to achieve power connection with the gear set 42 in the reduction assembly 4. The intermediate shaft 41 is arranged on the side of the second end cover 33 away from the first end cover 32. It is not directly connected to the rotor 31, but is independently installed as the bearing shaft of the gear set 42. The gear set 42 is sleeved on the intermediate shaft 41 and meshes with the extended part of the rotor 31, thereby transmitting the rotational power generated by the motor 3 to the reduction assembly 4. This structure fixes the stator 34 and rotor 31 with the first end cover 32 and the second end cover 33, which can improve the assembly accuracy and operational stability of the internal components of the motor 3. At the same time, the decoupling design of the intermediate shaft 41 and the rotor 31 avoids the centering error and stress concentration problems caused by the rigid connection between the intermediate shaft 41 and the rotor 31. This not only helps to reduce the difficulty of manufacturing and assembly, but also improves the flexibility and reliability of the electric brake 100 and extends the overall service life.

[0035] Please see Figures 1 to 3 In one embodiment of the present invention, the rotor 31 includes a motor shaft 311 and a rotor winding sleeved on the motor shaft 311. The motor shaft 311 includes a first shaft segment 3111 and a second shaft segment 3112. The first shaft segment 3111 passes through the mounting port 303 and is connected to the second shaft segment 3112. The second shaft segment 3112 is meshed with the gear set 42.

[0036] In this embodiment, the rotor 31 includes a motor shaft 311 and a rotor winding sleeved on the motor shaft 311. The motor shaft 311 is composed of a first shaft segment 3111 and a second shaft segment 3112. The first shaft segment 3111 extends outward from the inside of the rotor 31 through the mounting port 303 on the second end cover 33 and is connected to the second shaft segment 3112 located outside the motor 3. This connection can be achieved by welding, interference fit, or integrated machining to ensure the reliability of power transmission. The second shaft segment 3112 is directly meshed with the gear set 42 in the reduction assembly 4 to transmit the rotational power generated by the motor 3 to the intermediate shaft 41, thereby driving the entire gear set 42 to run.

[0037] Therefore, by designing the motor shaft 311 as a segmented structure, this embodiment can not only optimize the spatial layout of the magnetic field region inside the motor 3 and improve the electromagnetic conversion efficiency, but also enhance the structural strength and assembly flexibility of the transmission interface. At the same time, it avoids the problems of increased axial dimensions and excessively high coaxiality requirements caused by directly connecting the intermediate shaft 41 to the rotor 31. This is conducive to achieving a compact and modular design of the overall structure of the electric brake 100, improving transmission stability and maintenance convenience.

[0038] Please see Figures 1 to 3 In one embodiment of the present invention, the housing 1 is provided with a first mounting groove 102, the motor 3 is installed in the first mounting groove 102, the motor 3 is provided with a circuit board 6, the circuit board 6 is provided with a first through hole 601 for the rotor 31 to pass through and a second through hole 602 for the intermediate shaft 41 to pass through.

[0039] In this embodiment, the housing 1 is provided with a first mounting groove 102, which is located on the side of the housing 1 facing the cover 2 and is recessed, for positioning and supporting the motor 3. The motor 3 can be placed in the first mounting groove 102 to achieve quick alignment and positioning, facilitating subsequent assembly operations.

[0040] A circuit board 6 is mounted on the motor 3 and is fixedly installed at the end of the motor 3. It can be connected to the motor 3 using methods such as snap-fit, adhesive, or fasteners 7 to form an integrated structure. When the motor 3 is placed into the first mounting slot 102, the circuit board 6 is positioned along with the motor 3, eliminating the need for an additional mounting structure or separate positioning of the circuit board 6, thereby improving overall assembly efficiency and structural stability. The circuit board 6 has a first through hole 601 for the rotor 31 to pass through and a second through hole 602 for the intermediate shaft 41 to pass through. The first through hole 601 is located at the center of the circuit board 6 and is coaxial with the rotor 31, allowing the rotor 31 to pass through it. The second through hole 602 is designed according to the position of the intermediate shaft 41 to allow it to pass smoothly through the plane of the circuit board 6 without affecting the overall assembly.

[0041] Therefore, this embodiment directly fixes the circuit board 6 to the motor 3 and provides a first mounting groove 102 on the housing 1 for positioning the rotor 31, enabling the circuit board 6 to be synchronously positioned during the assembly of the motor 3. This eliminates the need for separate installation and adjustment of the circuit board 6, simplifies the assembly process, and improves production efficiency. Simultaneously, this structure also helps to improve the utilization rate of the internal space of the electric brake 100, enhancing the overall compactness and integration of the structure.

[0042] Please see Figures 1 to 3In one embodiment of the present invention, the circuit board 6 is provided with a second positioning hole 603. One end of the positioning member 5 passes through the second positioning hole 603 and the first positioning hole 301 and is inserted into the first positioning groove 101, and the other end is inserted into the second positioning groove 201 to connect the housing 1, the motor 3, the circuit board 6 and the cover 2.

[0043] In this embodiment, the position of the second positioning hole 603 corresponds to the positions of the first positioning hole 301, the first positioning groove 101, and the second positioning groove 201, and is used for the positioning component 5 to pass through. The cover 2 is also provided with a second mounting groove 202, in which the deceleration assembly 4 is installed to achieve positioning and support of the deceleration assembly 4. During the assembly process, when the motor 3 and the circuit board 6 fixed to its end are simultaneously placed in the first mounting groove 102, and the deceleration assembly 4 is installed in the second mounting groove 202, one end of the positioning component 5 can be passed through the second positioning hole 603 and the first positioning hole 301 in sequence and inserted into the first positioning groove 101, while the other end is inserted into the second positioning groove 201, thereby integrating the housing 1, the motor 3, the circuit board 6, and the cover 2 to quickly complete the assembly of the electric brake 100. This assembly method uses a single positioning element 5 to connect the housing 1, motor 3, circuit board 6, and cover 2 in series, enabling synchronous positioning and rapid assembly of these components, thus improving the assembly efficiency and structural consistency of the electric brake 100. Simultaneously, because the positioning element 5 connects the housing 1, motor 3, circuit board 6, and cover 2, it enhances the overall structural rigidity and vibration resistance of the electric brake 100, preventing operational instability caused by loosening of at least one of these components. Furthermore, it eliminates the need for multiple positioning pins found in traditional structures, simplifying the connection between the cover 2 and housing 1, reducing the number of parts and assembly steps, improving the integration and internal space utilization of the electric brake 100, and facilitating product miniaturization.

[0044] Please see Figures 1 to 3 In one embodiment of the present invention, the second end cap 33 is provided with a positioning part 35 protruding outward, the positioning part 35 is provided with a first positioning hole 301, the edge of the circuit board 6 is provided with a second positioning hole 603 corresponding to the position of the first positioning hole 301, the inner side wall of the housing 1 is provided with a first positioning groove 101 corresponding to the position of the first positioning hole 301, and the inner side wall of the cover 2 is provided with a second positioning groove 201 corresponding to the position of the first positioning hole 301.

[0045] In this embodiment, the positioning part 35 is protruded outward by the second end cap 33, and the first positioning hole 301 is opened in the positioning part 35, so that the first positioning hole 301 is located in the peripheral area of ​​the motor 3, thereby avoiding occupying the central area of ​​the motor 3, which is conducive to the functional layout or structural simplification of the central area. At the same time, the second positioning hole 603 is set at the edge of the circuit board 6, making full use of the space around the circuit board 6 that is not occupied by the main electronic components, without the need to add an additional independent mounting or positioning structure, which helps to reduce the overall volume and improve the space utilization rate. The first positioning groove 101 and the second positioning groove 201 are respectively set in the inner sidewalls of the housing 1 and the cover 2, making full use of the space in the housing 1 that is not occupied by the motor 3 and the circuit board 6, and the space in the cover 2 that is not occupied by the reduction assembly 4. This embedded first positioning groove 101 and second positioning groove 201 can not only achieve efficient utilization of the accommodating cavity 1001, but also avoid adding connecting parts to the outside of the housing 1 and the cover 2, optimize the external contour of the electric brake 100, and improve the compactness and integration of its overall structure.

[0046] Please see Figures 1 to 3 In one embodiment of the present invention, the positioning part 35 is further provided with a first fixing hole 302, the edge of the circuit board 6 is provided with a second fixing hole 604 corresponding to the position of the first fixing hole 302, and the inner sidewall of the housing 1 is provided with a fixing groove 103 corresponding to the position of the first fixing hole 302; the electric brake 100 further includes a fastener 7, which passes through the first fixing hole 302 and the second fixing hole 604 and is fixed in the fixing groove 103 to fix the circuit board 6 and the motor 3 to the housing 1.

[0047] In this embodiment, the first fixing hole 302 is a through hole penetrating the positioning part 35, used for the fastener 7 to pass through. The second fixing hole 604 is also a through hole, and its position corresponds to the first fixing hole 302. The fixing groove 103 is a recessed structure formed on the inner side wall of the housing 1, used to cooperate with the end of the fastener 7 to realize the positioning and fixing of the fastener 7. The fastener 7 passes through the second fixing hole 604 and the first fixing hole 302, and is fixed in the fixing groove 103, fixing the circuit board 6 and the motor 3 together to the housing 1, realizing a stable connection between the three.

[0048] Please see Figures 1 to 3 In one embodiment of the present invention, there are multiple first fixing holes 302, second fixing holes 604, fixing grooves 103 and fasteners 7; two first fixing holes 302 are equidistantly spaced in the positioning part 35 along the circumference of the motor 3; multiple fasteners 7 are correspondingly inserted into the corresponding first fixing holes 302 and second fixing holes 604, and cooperate with the corresponding fixing grooves 103 to fix the circuit board 6 and the motor 3 to the housing 1.

[0049] In this embodiment, the two first fixing holes 302 are symmetrically distributed on opposite sides of the motor 3 around its circumference to ensure balanced force, stable assembly, and prevent structural deformation or loosening of connections due to uneven loading. Two fasteners 7 pass through the corresponding second fixing holes 604 and first fixing holes 302, respectively, and are finally fixed in the corresponding fixing slots 103, fixing the circuit board 6 and motor 3 to the housing 1. Furthermore, this dual-point fixing structure, compared to single-point fixing, prevents the circuit board 6 and motor 3 from rotating or shifting during assembly or operation, ensuring their consistent position within the housing 1. Simultaneously, this structure fully utilizes the space between the edge of the circuit board 6 and the inner walls of the housing 1 and cover 2, without increasing the external structural dimensions, further optimizing the utilization of the internal space of the electric brake 100, which is beneficial for achieving compactness and miniaturization.

[0050] The present invention also proposes a vehicle, which includes an electric brake 100. The specific structure of the electric brake 100 is as described in the above embodiments. Since the vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0051] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An electric brake, characterized in that, include: The housing is provided with a first positioning groove; The cover body cooperates with the shell to form a receiving cavity. The cover body protrudes towards the side away from the shell, forming a concave cavity facing the opening of the shell. The inner wall of the cover body is provided with a second positioning groove. An electric motor is disposed within the accommodating cavity, the electric motor includes a rotor, and the electric motor is provided with a first positioning hole; A speed reduction assembly is disposed within the accommodating cavity. The speed reduction assembly includes an intermediate shaft and a gear set sleeved on the intermediate shaft. One end of the intermediate shaft is disposed in the motor, and the other end extends into the cavity and is positioned and engaged with the cavity. The gear set is meshed with the rotor. A positioning component, one end of which passes through the first positioning hole and is inserted into the first positioning groove, and the other end of which is inserted into the second positioning groove, so as to connect the housing, the cover and the motor.

2. The electric brake as described in claim 1, characterized in that, The motor further includes a first end cover, a second end cover, and a stator. The first end cover and the second end cover are disposed opposite to each other. One end of the stator is fixed inside the first end cover, and the other end is fixed inside the second end cover. The second end cover is provided with a mounting port. One end of the rotor is wound around the inner circumference of the stator, and the other end extends out through the mounting port. The intermediate shaft is disposed on the side of the second end cover away from the first end cover.

3. The electric brake as described in claim 2, characterized in that, The rotor includes a motor shaft and a rotor winding sleeved on the motor shaft. The motor shaft includes a first shaft segment and a second shaft segment. The first shaft segment passes through the mounting port and is connected to the second shaft segment. The second shaft segment is meshed with the gear set.

4. The electric brake as described in claim 2, characterized in that, The housing is provided with a first mounting groove, the motor is installed in the first mounting groove, the motor is provided with a circuit board, the circuit board is provided with a first through hole for the rotor to pass through and a second through hole for the intermediate shaft to pass through.

5. The electric brake as described in claim 4, characterized in that, The circuit board is provided with a second positioning hole. One end of the positioning member passes through the second positioning hole and the first positioning hole and is inserted into the first positioning groove, and the other end is inserted into the second positioning groove to connect the housing, the motor, the circuit board and the cover.

6. The electric brake as described in claim 4, characterized in that, The second end cap has a positioning part protruding outward, the positioning part has the first positioning hole, the edge of the circuit board has a second positioning hole corresponding to the position of the first positioning hole, the inner side wall of the housing has a first positioning groove protruding corresponding to the position of the first positioning hole, and the inner side wall of the cover has a second positioning groove protruding corresponding to the position of the first positioning hole.

7. The electric brake as described in claim 6, characterized in that, The positioning part is also provided with a first fixing hole, and the edge of the circuit board is provided with a second fixing hole corresponding to the position of the first fixing hole. The inner sidewall of the housing is provided with a fixing groove corresponding to the position of the first fixing hole. The electric brake also includes a fastener, which passes through the first fixing hole and the second fixing hole and is fixed in the fixing groove to fix the circuit board and the motor to the housing.

8. The electric brake as described in claim 7, characterized in that, The number of the first fixing hole, the second fixing hole, the fixing groove, and the fasteners are all multiple; the multiple first fixing holes are equally spaced along the circumference of the motor in the positioning part; the multiple fasteners are correspondingly inserted into the corresponding first fixing hole and second fixing hole, and cooperate with the corresponding fixing groove to fix the circuit board and the motor to the housing.

9. The electric brake as described in any one of claims 1 to 8, characterized in that, The positioning component is a positioning pin.

10. A vehicle, characterized in that, Includes the electric brake as described in any one of claims 1 to 9.

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