An electromechanical brake asymmetric parking electromagnet structure

Abstract

The utility model relates to new energy automobile dry type line control brake technology field, concretely relates to a kind of electronic mechanical brake asymmetric parking electromagnet structure, comprising: electromagnet shell, it is formed with the structure of accommodating cavity by multiple bending, the opening direction of accommodating cavity is parallel to the installation surface of MGU lower shell;Electromagnet body, fixedly installed in accommodating cavity;Mounting portion, it is set to the outer surface of electromagnet shell;Electromagnet connector, it is installed on the outer surface of electromagnet shell;Wherein, electromagnet shell is fixed on the installation surface of MGU lower shell by mounting portion, in the present application, first mounting lug and second mounting lug are the flat plate structure integrally formed with electromagnet shell, cooperate electromagnet shell relative traditional overturn 90 ° installation mode, manufacturing need not bending, make overall structure compact, small space occupation, greatly improve the installation arrangement efficiency in the limited space of electronic mechanical brake, optimize equipment space utilization.

Description

Technical Field

[0001] This utility model relates to the field of dry-type brake-by-wire technology for new energy vehicles, and in particular to an asymmetric parking electromagnet structure for an electromechanical brake. Background Technology

[0002] In the wave of technological innovation in the automotive industry, brake-by-wire products are developing at an unprecedented pace, a trend that has greatly accelerated the commercialization of electromechanical brakes in the vehicle sector. As an integrated braking solution, electromechanical brakes not only encompass critical service braking functions but also parking braking functions, providing dual protection for vehicle safety and handling. However, given the current trend of automotive design pursuing maximum space utilization, wheel-side space is becoming increasingly scarce. How to ensure stable and reliable parking functions while better adapting electromechanical brakes to limited wheel-side space through highly integrated components and a more compact spatial layout strategy has become one of the crucial challenges to be overcome in the commercial application of this technology.

[0003] Focusing on the parking mechanism in existing electromechanical brakes, the industry-standard design typically involves symmetrically arranging electromagnets within the motor gear unit (MGU). For its mounting structure, this is usually achieved by bending and punching holes in the electromagnet housing, then securing it with bolts. However, this design has significant drawbacks: its overall size is too large, severely limiting the symmetrical arrangement of the MGU. In practical applications, MGU structures using this design often exhibit protruding parts, resulting in an irregular overall layout. Patent CN117719479A, after arranging the electromagnets, fails to achieve symmetry on both sides of the MGU assembly, exhibiting not only protruding structures but also requiring bending of the mounting ears, further increasing design complexity and inefficient space utilization.

[0004] Therefore, this application develops an asymmetric parking electromagnet structure for an electromechanical brake to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this invention is to provide an asymmetric parking electromagnet structure for an electromechanical brake, in order to solve the problem that the existing technology requires a relatively large space due to the thickness of the outer shell and the bending mounting ears.

[0006] The technical solution of this utility model is: an asymmetric parking electromagnet structure for an electromechanical brake, comprising: The electromagnet housing is formed by multiple bending to create a cavity, the opening of which is parallel to the mounting surface of the MGU lower housing. The electromagnet body is fixedly installed inside the receiving cavity; The mounting part is disposed on the outer surface of the electromagnet housing; An electromagnet connector is installed on the outer surface of the electromagnet housing; The electromagnet housing is fixed to the mounting surface of the lower shell of the MGU via the mounting part.

[0007] Preferably, the mounting portion includes a first mounting ear and a second mounting ear, which are respectively mounted on two opposite surfaces of the electromagnet housing and extend in two perpendicular directions.

[0008] Preferably, the first mounting ear and the second mounting ear are located on the side of the electromagnet housing closest to the mounting surface and the side furthest from the mounting surface, respectively.

[0009] Preferably, both the first mounting ear and the second mounting ear are flat plate structures integrally formed with the electromagnet housing, and there is no bending process.

[0010] Preferably, both the first mounting ear and the second mounting ear have mounting holes for detachable fixing.

[0011] Preferably, the electromagnet connector is mounted on the electromagnet housing and located on the side where the second mounting ear is located, and the electromagnet connector is located on one side of the central axis of the electromagnet housing, forming an asymmetrical layout.

[0012] Compared with the prior art, the advantages of this utility model are: (1) Both the first mounting ear and the second mounting ear are flat structures integrally formed with the electromagnet housing. Combined with the installation method of rotating the electromagnet housing 90° relative to the traditional method, the manufacturing does not require bending, making the overall structure compact and occupying little space. This greatly improves the installation and layout efficiency of the electromechanical brake in the limited space and optimizes the space utilization of the equipment. (2) The electromagnet connector is located on one side of the central axis of the electromagnet shell, with an asymmetrical layout. It makes good use of local space, avoids interference with other internal components of the electromagnet, and further enhances the compactness of the structure. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the electromagnet housing described in this utility model; Figure 2 This is a schematic diagram of the asymmetric parking electromagnet structure of the electromechanical brake described in this utility model.

[0014] The components are: 1. Electromagnet housing; 11. Receiving cavity; 2. MGU lower housing; 21. Mounting surface; 3. Electromagnet body; 4. Mounting part; 41. First mounting ear; 42. Second mounting ear; 43. Mounting hole; 5. Electromagnet connector. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to specific embodiments: like Figures 1-2 As shown, an asymmetric parking electromechanical brake structure includes an electromagnet housing 1, an MGU lower housing 2, an electromagnet body 3, a mounting part 4, and an electromagnet connector 5. The electromagnet housing 1 is formed by multiple bending operations to create a cavity 11. The opening direction of the cavity 11 is parallel to the mounting surface 21 of the MGU lower housing 2, rather than the traditional mounting method where the cavity 11 faces the MGU lower housing 2. Furthermore, the design of the mounting part 4 fully considers the connection requirements with the MGU lower housing 2, mounting the mounting part 4 on the outer surface of the electromagnet housing 1, and its position is chosen to facilitate connection with external circuitry. The electromagnet body 3, as the core functional component of the entire structure, is securely fixed inside the cavity 11 formed by the electromagnet housing 1. Its stable installation position ensures that it can accurately and reliably exert electromagnetic effects during operation, providing necessary power support for the parking function of the electromechanical brake. The electromagnet connector 5, as the electrical connection hub between the electromagnet and the external power supply or control system, is installed on the outer surface of the electromagnet housing, ensuring that the current can be transmitted stably and reliably, so that the electromagnet can work normally according to the control signal.

[0016] Specifically, the electromagnet housing 1 is formed into a receiving cavity 11 by multiple bending, integrating the electromagnet body 3 within it. The placement of the mounting part 4 and the electromagnet connector 5 also contributes to a compact structure with minimal space requirements, facilitating installation within the limited space of the electromechanical brake and improving the equipment's space utilization. Furthermore, the electromagnet connector 5 is mounted on the outer surface of the electromagnet housing 1, facilitating connection and disconnection with external circuits. Its rational placement and reliable connection method effectively reduce potential fault points in the electrical connection process, ensuring the stability and accuracy of current transmission, and improving the electromagnet's performance and the overall reliability of the electromechanical brake system.

[0017] In this embodiment, the mounting part 4 includes a first mounting ear 41 and a second mounting ear 42. The electromagnet housing is fixed to the mounting surface 21 of the MGU lower shell 2 via the first mounting ear 41 and the second mounting ear 42, thereby forming a complete and stable asymmetric parking electromagnet structure for the electromechanical brake. The first mounting ear 41 and the second mounting ear 42 are respectively located on two opposite surfaces of the electromagnet housing 1 and extend in two perpendicular directions. This allows the electromagnet housing 1 to withstand external forces from multiple directions when connected to the MGU lower shell 2. During the operation of the electromechanical brake, regardless of whether it is subjected to longitudinal or lateral vibration or impact, the mounting part 4 can distribute and transmit the force through the two mounting ears, effectively avoiding loosening problems that may occur with a single-direction connection. This greatly enhances the stability of the connection between the electromagnet housing 1 and the MGU lower shell 2, ensuring the reliable operation of the electromechanical brake parking function. In actual installation, a suitable installation method and fixing point can be selected according to the specific structure and installation space of the MGU lower shell 2, making the installation operation more convenient and efficient. Meanwhile, by setting the first mounting ear 41 and the second mounting ear 42 on two opposite sides of the electromagnet housing 1 and rationally designing their extension direction, the space around the electromagnet housing 1 can be fully utilized. Without increasing the overall size of the electromagnet, a stable installation connection is achieved, improving the utilization rate of the internal space of the electromechanical brake and facilitating the miniaturization and integration design of the equipment.

[0018] Specifically, both the first mounting ear 41 and the second mounting ear 42 are integrally formed flat structures with the electromagnet housing 1. Combined with the electromagnet housing's 90° rotation mounting method compared to traditional methods, bending is unnecessary during manufacturing. This eliminates gaps between the mounting ear and the electromagnet housing 1, preventing loosening due to weak connections and significantly improving the overall structural strength. During operation, it can better withstand forces from all directions, ensuring a stable and reliable connection between the electromagnet housing 1 and the MGU lower housing 2, effectively guaranteeing the stable operation of the electromechanical brake's parking function. Furthermore, since the first mounting ear 41 and the second mounting ear 42 do not require bending, the manufacturing process is simplified. Compared to mounting ears that require bending, the integrally formed flat structure reduces processing steps and equipment requirements, lowering production difficulty and manufacturing costs. Simultaneously, the simplified manufacturing process also helps improve production efficiency, shorten the production cycle, and meet the needs of large-scale production.

[0019] Furthermore, both the first mounting ear 41 and the second mounting ear 42 are provided with mounting holes 43 for detachable fixing. These mounting holes 43 can match the corresponding mounting holes 43 on the lower shell 2 of the MGU, and the detachable fixing connection between the electromagnet housing 1 and the lower shell 2 of the MGU can be achieved by standard fasteners such as bolts and nuts.

[0020] Furthermore, the electromagnet connector 5 is located on one side of the central axis of the electromagnet housing 1, presenting an asymmetrical layout. By utilizing the local space of the electromagnet housing 1, interference between the connector and other internal components of the electromagnet (such as the windings and magnetic circuit structure of the electromagnet body 3) is avoided, making the entire electromagnet structure more compact. The integration of electromagnet functions is achieved within a limited space, which is beneficial for the miniaturization and lightweight design of the overall electromechanical brake, meeting the stringent requirements of modern automobiles and other equipment regarding the space occupied and weight of components.

[0021] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. An asymmetric parking electromagnet structure for an electromechanical brake, characterized in that, include: The electromagnet housing (1) is formed by multiple bending to create a structure with a receiving cavity (11), the opening direction of which is parallel to the mounting surface (21) of the MGU lower housing (2). The electromagnet body (3) is fixedly installed in the receiving cavity (11); The mounting part (4) is provided on the outer surface of the electromagnet housing (1); Electromagnet connector (5) is installed on the outer surface of the electromagnet housing (1); The electromagnet housing (1) is fixed to the mounting surface (21) of the MGU lower housing (2) by the mounting part (4).

2. The asymmetric parking electromagnet structure for an electromechanical brake according to claim 1, characterized in that: The mounting part (4) includes a first mounting ear (41) and a second mounting ear (42), which are respectively mounted on two opposite surfaces of the electromagnet housing (1) and extend in two perpendicular directions.

3. The asymmetric parking electromagnet structure for an electromechanical brake according to claim 2, characterized in that: The first mounting ear (41) and the second mounting ear (42) are located on the side of the electromagnet housing (1) close to the mounting surface (21) and away from the mounting surface (21), respectively.

4. The asymmetric parking electromagnet structure for an electromechanical brake according to claim 2, characterized in that: The first mounting ear (41) and the second mounting ear (42) are both flat structures integrally formed with the electromagnet housing (1) and have no bending process.

5. The asymmetric parking electromagnet structure for an electromechanical brake according to claim 2, characterized in that: Both the first mounting ear (41) and the second mounting ear (42) are provided with mounting holes (43) for detachable fixing.

6. The asymmetric parking electromagnet structure for an electromechanical brake according to claim 1, characterized in that: The electromagnet connector (5) is installed on the electromagnet housing (1) and located on the side where the second mounting ear (42) is located. The electromagnet connector is located on one side of the central axis of the electromagnet housing (1), forming an asymmetrical layout.

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