Mounting bracket and design method

Abstract

The embodiment of the invention provides an installation support and a design method, the installation support comprises a support body, the support body is of a hollow structure, and the top of the support body is used for bearing a target part; a first included angle is formed between the first supporting part and the support body, a first connecting structure is arranged at the end, away from the support body, of the first supporting part, a first reinforcing structure is arranged between the first supporting part and the support body, and a second reinforcing structure is arranged on the first supporting part; a second included angle is formed between the second supporting part and the support body, a second connecting structure is arranged at the end, away from the support body, of the second supporting part, an avoiding space is formed between the second supporting part and the first supporting part, a third reinforcing structure is arranged between the second supporting part and the support body, and a fourth reinforcing structure is arranged on the second supporting part. The mounting bracket solves the technical problems of poor NVH performance and poor durability of the mounting bracket in the prior art.

Description

Technical Field

[0001] This application relates to the field of mounting bracket design, and more specifically, to a mounting bracket and its design method. Background Technology

[0002] The information and communication module is connected to the vehicle body via a mounting bracket, and its performance directly affects the vehicle's operational safety and user experience. In existing technologies, the design of the mounting bracket fails to achieve an optimal balance in terms of materials and structure, resulting in poor NVH performance and potentially even failure due to structural fatigue after prolonged operation.

[0003] There is currently no good solution to the technical problems of poor NVH performance and poor durability of mounting brackets in existing technologies. Summary of the Invention

[0004] This application provides a mounting bracket and its design method to at least solve the technical problems of poor NVH performance and poor durability of mounting brackets in the prior art.

[0005] According to one aspect of the embodiments of this application, a mounting bracket is provided, comprising: a bracket body having a hollow structure, the top of the bracket body being used to support a target part; a first support portion being disposed at a first angle to the bracket body, a first connecting structure being provided at the end of the first support portion away from the bracket body, a first reinforcing structure being provided between the first support portion and the bracket body, and a second reinforcing structure being provided on the first support portion; and a second support portion being disposed at a second angle to the bracket body, a second connecting structure being provided at the end of the second support portion away from the bracket body, a clearance space being formed between the second support portion and the first support portion, a third reinforcing structure being provided between the second support portion and the bracket body, and a fourth reinforcing structure being provided on the second support portion.

[0006] Furthermore, the bracket body is provided with multiple mounting holes for connecting target parts. The multiple mounting holes are distributed around the circumference of the bracket body, and at least one weight-reducing hole is provided between two adjacent mounting holes to make the bracket body form a hollow structure.

[0007] Furthermore, the weight-reducing holes extend toward the center of the support body, and the width of the weight-reducing holes decreases from the edge of the support body to the center of the support body.

[0008] Furthermore, the edge of the support body is provided with a first flange, and the edge of the weight reduction hole is provided with a second flange. Both the first flange and the second flange are located at the bottom of the support body.

[0009] Furthermore, the bottom of the support body is provided with a plurality of first reinforcing ribs, which are distributed circumferentially along the support body. The first reinforcing ribs extend from the middle of the support body to connect with the first flange, and / or the bottom of the support body is provided with a plurality of second reinforcing ribs, which are connected between the first flange and the second flange.

[0010] Furthermore, the first reinforcing structure is a third reinforcing rib connected between the first support portion and the bracket body, and / or the third reinforcing structure is a fourth reinforcing rib connected between the second support portion and the bracket body.

[0011] Furthermore, the second reinforcing structure includes a fifth reinforcing rib and a sixth reinforcing rib formed on the outer side wall of the first support portion. The fifth and sixth reinforcing ribs are arranged intersectingly, and the extension direction of the fifth reinforcing rib is different from that of the sixth reinforcing rib.

[0012] Furthermore, a protruding structure is provided on the outer wall of the first support, the edge of the protruding structure is connected to the fifth reinforcing rib and the sixth reinforcing rib, and a wire harness through hole is provided in the middle of the protruding structure.

[0013] Furthermore, the fourth reinforcing structure consists of a plurality of seventh reinforcing ribs formed on the outer side wall of the second support portion. The plurality of seventh reinforcing ribs are spaced apart along the width direction of the second support portion, and each seventh reinforcing rib extends along the height direction of the second support portion.

[0014] According to another aspect of the embodiments of this application, a design method for a mounting bracket is also provided. The mounting bracket is the aforementioned mounting bracket. The design method includes the following steps: meshing a simplified model of the mounting bracket to generate an initial network model, wherein the simplified model of the mounting bracket includes a simplified model of the bracket body and simplified models of the first support portion and the second support portion located at both ends of the bracket body; setting a density-variable material domain for the initial network model; applying a preset load to the initial network model and setting boundary conditions for the initial network model, the boundary conditions including response parameters, constraint parameters, and target parameters, the response parameters including volume fraction and modes, the target parameter being the maximum mode; calculating using finite element analysis and topology optimization algorithms to obtain an optimized structure of the mounting bracket; and combining the optimized structure of the mounting bracket with process flow analysis to obtain the final structure of the mounting bracket.

[0015] In this embodiment, the bracket body has a hollow structure, which helps reduce the overall weight of the mounting bracket, thereby reducing its natural frequency and the possibility of resonance with the vehicle body, thus improving the NVH performance of the mounting bracket. The hollow structure also helps reduce the stress level of the mounting bracket under dynamic loads, reducing the risk of failure due to structural fatigue, and thus improving the durability of the mounting bracket. A clearance space is formed between the first and second support parts, preventing direct contact between the mounting bracket and other components or wiring harnesses of the vehicle body, reducing additional vibration sources and helping to maintain the NVH performance of the mounting bracket. The support parts are reinforced with various strengthening structures to enhance the overall rigidity of the mounting bracket, effectively suppressing vibration and further improving its NVH performance. Simultaneously, the strengthening structures can distribute external loads, reduce stress concentration, enhance the load-bearing capacity of the mounting bracket under complex working conditions, reduce stress fatigue, and further improve the durability of the mounting bracket. The above-described structure of the mounting bracket can solve the technical problems of poor NVH performance and poor durability of existing mounting brackets. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 A schematic diagram of the mounting bracket in the first embodiment of this application is shown;

[0018] Figure 2 A schematic diagram of the mounting bracket in the second embodiment of this application is shown;

[0019] Figure 3 A schematic diagram of the mounting bracket in the third embodiment of this application is shown;

[0020] Figure 4 A schematic diagram of the mounting bracket in the fourth embodiment of this application is shown;

[0021] Figure 5 A schematic diagram of the mounting bracket in the fifth embodiment of this application is shown;

[0022] Figure 6 A flowchart illustrating the mounting bracket design method in this application is shown;

[0023] Figure 7 A schematic diagram of the network partitioning of the mounting bracket in the sixth embodiment of this application is shown;

[0024] Figure 8 A schematic diagram of the network partitioning of the mounting bracket in the seventh embodiment of this application is shown;

[0025] Figure 9 A schematic diagram showing the analysis results of the mounting bracket in the eighth embodiment of this application is illustrated;

[0026] Figure 10 A schematic diagram showing the analysis results of the mounting bracket in the ninth embodiment of this application is illustrated.

[0027] The above figures include the following reference numerals:

[0028] 1. Support body;

[0029] 11. Mounting hole; 12. Weight reduction hole; 13. First flange; 14. Second flange; 15. First reinforcing rib; 16. Second reinforcing rib;

[0030] 2. First support section;

[0031] 21. First connecting structure; 22. First reinforcing structure; 23. Second reinforcing structure; 231. Fifth reinforcing rib; 232. Sixth reinforcing rib; 24. Protruding structure; 241. Wire harness through hole; 25. Third flange;

[0032] 3. Second support section;

[0033] 31. Second connecting structure; 32. Third reinforcing structure; 33. Fourth reinforcing structure; 34. Fourth flange; 35. Clearance groove;

[0034] 4. Avoidance space;

[0035] 5. Target part. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0039] Combination Figures 1 to 5 As shown, according to a specific embodiment of this application, a mounting bracket is provided.

[0040] Specifically, the mounting bracket includes: a bracket body 1, a first support portion 2, and a second support portion 3. The bracket body 1 has a hollow structure, and its top is used to support the target part 5. The first support portion 2 is set at a first angle to the bracket body 1. The end of the first support portion 2 away from the bracket body 1 is provided with a first connecting structure 21. A first reinforcing structure 22 is provided between the first support portion 2 and the bracket body 1, and a second reinforcing structure 23 is provided on the first support portion 2. The second support portion 3 is set at a second angle to the bracket body 1. A second connecting structure 31 is provided at the end of the second support portion 3 away from the bracket body 1. A clearance space 4 is formed between the second support portion 3 and the first support portion 2. A third reinforcing structure 32 is provided between the second support portion 3 and the bracket body 1, and a fourth reinforcing structure 33 is provided on the second support portion 3.

[0041] In this embodiment, the bracket body 1 has a hollow structure, which helps reduce the overall weight of the mounting bracket, thereby reducing its natural frequency and the possibility of resonance with the vehicle body, thus improving the NVH performance of the mounting bracket. The hollow structure of the bracket body 1 also helps reduce the stress level of the mounting bracket under dynamic loads, reducing the risk of failure due to structural fatigue, and thus improving the durability of the mounting bracket. A clearance space 4 is formed between the first support part 2 and the second support part 3, preventing direct contact between the mounting bracket and other components or wiring harnesses of the vehicle body, reducing additional vibration sources, and helping to maintain the NVH performance of the mounting bracket. The support parts enhance the overall rigidity of the mounting bracket by setting various reinforcing structures, effectively suppressing the vibration of the mounting bracket and further improving its NVH performance. At the same time, each reinforcing structure can disperse external loads, reduce stress concentration, enhance the load-bearing capacity of the mounting bracket under complex working conditions, reduce stress fatigue, and further improve the durability of the mounting bracket. The above-described structure of the mounting bracket can solve the technical problems of poor NVH performance and poor durability of existing mounting brackets.

[0042] In an exemplary embodiment of this application, the mounting bracket is a one-piece molded structure, integrally formed using casting or injection molding. The bracket body 1 has a hollow structure, and the top of the bracket body 1 is used to support the target part 5, which is an information communication module. A first support part 2 and a second support part 3 are respectively disposed at both ends of the bracket body 1 along the length direction of the bracket body 1. The first support part 2 is perpendicular to the bracket body 1, and the second support part 3 is perpendicular to the bracket body 1, forming a clearance space 4 between the first support part 2 and the second support part 3 to avoid other structures of the vehicle body and wiring harnesses. The inner side of the first support part 2 is connected to the bottom of the bracket body 1 through a first reinforcing structure 22, and the inner side of the second support part 3 is connected to the bottom of the bracket body 1 through a first reinforcing structure 22. A second reinforcing structure 23 is formed on the outer wall of the first support part 2 to improve the support capacity of the first support part 2. A fourth reinforcing structure 33 is formed on the outer wall of the second support part 3 to improve the support capacity of the second support part 3. The first support part 2 has a first connecting structure 21 at its end away from the bracket body 1. The first connecting structure 21 is a plate-shaped structure arranged parallel to the bracket body 1, and a first connecting hole is provided in the middle of the first connecting structure 21 for connection to the vehicle body. The second support part 3 has a second connecting structure 31 at its end away from the bracket body 1. The second connecting structure 31 is a plate-shaped structure arranged parallel to the bracket body 1, and a second connecting hole is provided in the middle of the second connecting structure 31 for connection to the vehicle body.

[0043] As an alternative implementation, the angle between the first support part 2 and the bracket body 1 is an obtuse angle, and the angle between the second support part 3 and the bracket body 1 is an obtuse angle, so as to increase the support area of ​​the mounting bracket.

[0044] Furthermore, the bracket body 1 is provided with a plurality of mounting holes 11 for connecting the target part 5. The plurality of mounting holes 11 are distributed along the circumference of the bracket body 1, and at least one weight-reducing hole 12 is provided between two adjacent mounting holes 11, so that the bracket body 1 forms a hollow structure.

[0045] In the embodiments of this application, the support body 1 is connected to the target part 5 through mounting holes 11. The area where the mounting holes 11 are located is the load-bearing area of ​​the support body 1. Other areas around the support body 1 can be weight-reduced. While ensuring load-bearing capacity, the support body 1 achieves a lightweight design, that is, while ensuring the durability of the support body 1, the NVH performance of the support body 1 is improved. The weight-reducing holes 12 are located between two adjacent mounting holes 11. To a certain extent, they can also disperse and reduce local stress, reduce stress concentration in the support body 1, and thus improve the stability of the support body 1.

[0046] Furthermore, the weight-reducing hole 12 extends toward the middle of the support body 1, and the width of the weight-reducing hole 12 decreases from the edge of the support body 1 to the middle of the support body 1.

[0047] In the embodiments of this application, in addition to the area where the mounting hole 11 is located being the main load-bearing area of ​​the bracket body 1, the middle area of ​​the bracket body 1 is also the main load-bearing point of the bracket body 1. The width of the weight-reducing hole 12 is set to decrease from the edge of the bracket body 1 to the middle of the bracket body 1 in order to ensure the strength of the middle of the bracket body 1 and thereby improve the durability of the bracket body 1.

[0048] like Figure 1 , Figure 2 , Figure 5 As shown, the bracket body 1 has a rectangular structure and four mounting holes 11 are provided around its circumference, located at the four apex corners of the bracket body 1. The bracket body 1 also has four weight-reducing holes 12, with one weight-reducing hole 12 between each pair of adjacent mounting holes 11. The weight-reducing holes 12 have a triangular structure, and their width decreases progressively from the edge to the center of the bracket body 1, forming an X-shape at the center. The edges of the areas containing the mounting holes 11 extend outwards to facilitate connection with the connecting seat of the target part 5.

[0049] Furthermore, the edge of the support body 1 is provided with a first flange 13, and the edge of the weight reduction hole 12 is provided with a second flange 14. Both the first flange 13 and the second flange 14 are provided at the bottom of the support body 1.

[0050] In the embodiments of this application, the first flange 13 and the second flange 14 are both provided at the bottom of the bracket body 1. Without affecting the top support function of the bracket body 1, the first flange 13 can improve the bending stiffness of the edge of the bracket body 1, and the second flange 14 can improve the bending stiffness of the edge of the weight reduction hole 12, thereby helping to improve the bending stiffness of the bracket body 1 and improve the durability of the bracket body 1.

[0051] like Figure 3 As shown, the edge of the support body 1 is formed with a first flange 13, which extends downward away from the support body 1 and is perpendicular to the support body 1. The edge of the weight reduction hole 12 is formed with a second flange 14, which extends downward away from the support body 1 and is perpendicular to the support body 1.

[0052] Furthermore, the bottom of the support body 1 is provided with a plurality of first reinforcing ribs 15, which are distributed around the circumference of the support body 1. The first reinforcing ribs 15 extend from the middle of the support body 1 to connect with the first flange 13. And / or, the bottom of the support body 1 is provided with a plurality of second reinforcing ribs 16, which are connected between the first flange 13 and the second flange 14.

[0053] In the embodiments of this application, a plurality of first reinforcing ribs 15 radiate from the center of the support body 1 to the edge and extend to connect with the first flange 13 to increase the bending stiffness and torsional stiffness of the support body 1; a second reinforcing rib 16 connects between the first flange 13 and the second flange 14 to strengthen the connection between the edge of the weight reduction hole 12 and the edge of the support body 1, further improving the bending stiffness at the edge. Simultaneously, the arrangement of the first reinforcing ribs 15 and the second reinforcing ribs 16 helps to reduce the vibration amplitude of the support body 1, thereby reducing the noise level and optimizing NVH performance.

[0054] like Figure 3 As shown, the bottom of the support body 1 is provided with four first reinforcing ribs 15, which are distributed circumferentially along the support body 1. An annular protrusion is located at the center of the bottom of the support body 1. One end of each first reinforcing rib 15 is connected to the edge of the annular protrusion, and the other end extends to the top corner area of ​​the support body 1 and connects to the first flange 13 in that area. The bottom of the support body 1 is provided with multiple second reinforcing ribs 16. Some of the second reinforcing ribs 16 are connected between the first flange 13 and the second flange 14, and some of the second reinforcing ribs 16 are connected between the second flange 14 and the first reinforcing ribs 15.

[0055] Furthermore, the first reinforcing structure 22 is a third reinforcing rib connected between the first support part 2 and the bracket body 1, and / or the third reinforcing structure 32 is a fourth reinforcing rib connected between the second support part 3 and the bracket body 1.

[0056] In the embodiments of this application, the third reinforcing rib is connected between the first support part 2 and the bracket body 1, which can strengthen the connection strength between the first support part 2 and the bracket body 1 to avoid breakage due to stress concentration; the fourth reinforcing rib is connected between the second support part 3 and the bracket body 1, which can strengthen the connection strength between the second support part 3 and the bracket body 1 to avoid breakage due to stress concentration; setting the first reinforcing structure 22 and the third reinforcing structure 32 as reinforcing ribs not only simplifies the structure and makes it easy to process, but also helps with lightweight design.

[0057] like Figure 3 As shown, the first reinforcing structure 22 is a third reinforcing rib formed between the first support part 2 and the bracket body 1. One end of the third reinforcing rib is connected to the inner wall of the first support part 2, and the other end of the third reinforcing rib is connected to the bottom surface of the bracket body 1 and extends to the second flange 14. The third reinforcing rib is a fourth reinforcing rib formed between the second support part 3 and the bracket body 1. One end of the fourth reinforcing rib is connected to the inner wall of the second support part 3, and the other end of the fourth reinforcing rib is connected to the bottom surface of the bracket body 1 and extends to the second flange 14.

[0058] Furthermore, the second reinforcing structure 23 includes a fifth reinforcing rib 231 and a sixth reinforcing rib 232 formed on the outer side wall of the first support portion 2. The fifth reinforcing rib 231 and the sixth reinforcing rib 232 are arranged intersectingly, and the extension direction of the fifth reinforcing rib 231 is different from that of the sixth reinforcing rib 232.

[0059] In the embodiments of this application, the fifth reinforcing rib 231 and the sixth reinforcing rib 232 are arranged in a cross manner to form a reinforcing network structure, which can enhance the overall stiffness and strength of the first support part 2, reduce the amplitude of the first support part 2, and thus improve the NVH performance of the first support part 2; the reinforcing ribs arranged in different directions help to disperse stress and avoid stress concentration, thereby improving the durability of the first support part 2.

[0060] like Figure 1 As shown, the edge of the first support portion 2 is provided with a third flange 25, which is formed on the outer side surface of the first support portion 2. The second reinforcing structure 23 includes a plurality of fifth reinforcing ribs 231 and a plurality of sixth reinforcing ribs 232 formed on the outer side wall of the first support portion 2. The fifth reinforcing ribs 231 extend along the width direction of the first support portion 2, and the sixth reinforcing ribs 232 extend along the height direction of the first support portion 2. The plurality of fifth reinforcing ribs 231 are spaced apart along the height direction of the first support portion 2, and the plurality of sixth reinforcing ribs 232 are spaced apart along the width direction of the first support portion 2. The fifth reinforcing ribs 231 and the sixth reinforcing ribs 232 are intersecting to form a reinforcing network structure. The fifth reinforcing ribs 231 extend to connect with the third flange 25, and the sixth reinforcing ribs 232 extend to connect with the third flange 25.

[0061] Furthermore, such as Figure 1 As shown, a protruding structure 24 is provided on the outer side wall of the first support part 2. The edge of the protruding structure 24 is connected to the fifth reinforcing rib 231 and the sixth reinforcing rib 232. A wire harness through hole 241 is provided in the middle of the protruding structure 24.

[0062] In the embodiments of this application, the wire harness via 241 will weaken the strength of the first support part 2. A protruding structure 24 is designed in the area where the wire harness via 241 is set, and the wire harness via 241 is set on the protruding structure 24, thereby improving the rigidity of the first support part 2 and ensuring that the first support part 2 is not easily deformed or damaged when subjected to dynamic or static loads.

[0063] Furthermore, the fourth reinforcing structure 33 consists of a plurality of seventh reinforcing ribs formed on the outer side wall of the second support portion 3. The plurality of seventh reinforcing ribs are spaced apart along the width direction of the second support portion 3, and each seventh reinforcing rib extends along the height direction of the second support portion 3.

[0064] In the embodiments of this application, a plurality of seventh reinforcing ribs are formed on the outer side wall of the second support portion 3, which can improve the bending stiffness and compressive strength of the second support portion 3, reduce the amplitude of the second support portion 3, and thus improve the NVH performance of the second support portion 3; the seventh reinforcing ribs help to disperse stress and avoid stress concentration, thereby improving the durability of the second support portion 3.

[0065] like Figure 2 As shown, the edge of the second support portion 3 is provided with a fourth flange 34, which is formed on the outer surface of the second support portion 3. The fourth reinforcing structure 33 consists of a plurality of seventh reinforcing ribs formed on the outer wall of the second support portion 3. The plurality of seventh reinforcing ribs are spaced apart along the width direction of the second support portion 3 and extend along the height direction of the second support portion 3. A clearance groove 35 is located at the bottom center of the second support portion 3, and the edge of the clearance groove 35 is provided with a fourth flange 34. Part of the seventh reinforcing rib extends to connect with the fourth flange 34 at the edge of the clearance groove 35.

[0066] According to another specific embodiment of this application, a method for designing a mounting bracket is also provided, wherein the mounting bracket is the mounting bracket in the above embodiment, such as... Figure 6 As shown, the design method includes the following steps:

[0067] Step S1: Mesh the simplified model of the mounting bracket to generate an initial network model. The simplified model of the mounting bracket includes a simplified model of the bracket body 1, and simplified models of the first support part 2 and the second support part 3 located at both ends of the bracket body 1.

[0068] Specifically, Figure 7, Figure 8 For the initial network model, the degree of mesh refinement directly affects the accuracy of the analysis and the consumption of computational resources. Therefore, the appropriate mesh size and shape can be selected according to actual needs.

[0069] Step S2: Set the density-variable material domain of the initial network model.

[0070] Specifically, the variable density material domain allows the algorithm to dynamically adjust the material distribution during the calculation process, thereby minimizing material usage while meeting strength and stability requirements, thus achieving lightweight design.

[0071] Step S3: Apply a preset load to the initial network model and set the boundary conditions of the initial network model. The boundary conditions include response parameters, constraint parameters and objective parameters. The response parameters include volume fraction and modes. The objective parameter is the maximum mode. Calculate using the finite element analysis method and topology optimization algorithm to obtain the optimized structure of the mounting bracket.

[0072] Specifically, the preset loads include at least the weight of target part 5 and the vibration of the vehicle body; maximum modality refers to the structure's natural frequency being higher than the vehicle body's operating frequency to avoid resonance. The finite element analysis method aims to find the structural optimization scheme that achieves the minimum weight while meeting the modal stiffness (i.e., NVH performance) requirements. The topology optimization algorithm automatically adjusts the material distribution according to the set objectives, eliminating unnecessary materials and ensuring that the structure has sufficient strength and stiffness in critical parts.

[0073] like Figure 7 , Figure 8 As shown, the line at the top of the simplified model of the mounting bracket is a rigid element. This rigid element is a simplified model of the target part 5. The center point of the rigid element is the active point of the simplified model of the target part 5. The four points around the rigid element are the driven points. The driven points represent the constraint points between the target part 5 and the bracket body 1. Gravity is applied at the active point.

[0074] like Figure 9 , Figure 10 As shown, a weight-reducing hole 12 can be provided on the support body 1, and the approximate location of the weight-reducing hole 12 is shown. Reinforcing structures are required between the first support part 2 and the support body 1, and between the second support part 3 and the support body 1. The first support part 2 needs to be reinforced as a whole, and reinforcing ribs are required on the outer surface of the second support part 3.

[0075] The thickness and dimensions of the mounting bracket can be adaptively adjusted according to the size and weight of the target part 5.

[0076] Step S4: Combining the optimized structure of the mounting bracket and process flow analysis, the final structure of the mounting bracket is obtained.

[0077] Specifically, by using mold flow analysis to evaluate material flowability and molding quality, we can ensure that the optimized structure is feasible in actual production and will not have defects such as pores or cracks, thereby ensuring the manufacturability of the design and further improving the economy and feasibility of the design.

[0078] In the embodiments of this application, a topology optimization algorithm can be used to achieve maximum weight reduction while ensuring that the mounting bracket meets the predetermined modal performance requirements. Simultaneously, the topology optimization algorithm can reduce the number of analysis and design iterations, improving design efficiency and reducing R&D costs.

[0079] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0080] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0081] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0082] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A mounting bracket, characterized in that, The mounting bracket includes: The bracket body (1) has a hollow structure, and the top of the bracket body (1) is used to support the target part (5). The first support part (2) is set at a first angle with the bracket body (1). The end of the first support part (2) away from the bracket body (1) is provided with a first connecting structure (21). A first reinforcing structure (22) is provided between the first support part (2) and the bracket body (1). A second reinforcing structure (23) is provided on the first support part (2). The second support part (3) is set at a second angle with the bracket body (1). The end of the second support part (3) away from the bracket body (1) is provided with a second connecting structure (31). A clearance space (4) is formed between the second support part (3) and the first support part (2). A third reinforcing structure (32) is provided between the second support part (3) and the bracket body (1). A fourth reinforcing structure (33) is provided on the second support part (3).

2. The mounting bracket according to claim 1, characterized in that, The bracket body (1) is provided with a plurality of mounting holes (11) for connecting the target part (5). The plurality of mounting holes (11) are distributed along the circumference of the bracket body (1). At least one weight-reducing hole (12) is provided between two adjacent mounting holes (11) so that the bracket body (1) forms the hollow structure.

3. The mounting bracket according to claim 2, characterized in that, The weight-reducing hole (12) extends toward the middle of the support body (1), and the width of the weight-reducing hole (12) decreases from the edge of the support body (1) to the middle of the support body (1).

4. The mounting bracket according to claim 2, characterized in that, The edge of the support body (1) is provided with a first flange (13), and the edge of the weight reduction hole (12) is provided with a second flange (14). The first flange (13) and the second flange (14) are both located at the bottom of the support body (1).

5. The mounting bracket according to claim 4, characterized in that, The bottom of the support body (1) is provided with a plurality of first reinforcing ribs (15), which are distributed around the circumference of the support body (1). The first reinforcing ribs (15) extend from the middle of the support body (1) to connect with the first flange (13), and / or, the bottom of the support body (1) is provided with a plurality of second reinforcing ribs (16), which are connected between the first flange (13) and the second flange (14).

6. The mounting bracket according to claim 1, characterized in that, The first reinforcing structure (22) is a third reinforcing rib connected between the first support part (2) and the bracket body (1), and / or the third reinforcing structure (32) is a fourth reinforcing rib connected between the second support part (3) and the bracket body (1).

7. The mounting bracket according to claim 1, characterized in that, The second reinforcing structure (23) includes a fifth reinforcing rib (231) and a sixth reinforcing rib (232) formed on the outer side wall of the first support (2). The fifth reinforcing rib (231) and the sixth reinforcing rib (232) are arranged intersectingly, and the extension direction of the fifth reinforcing rib (231) is different from that of the sixth reinforcing rib (232).

8. The mounting bracket according to claim 7, characterized in that, The outer side wall of the first support part (2) is provided with a protruding structure (24), the edge of the protruding structure (24) is connected to the fifth reinforcing rib (231) and the sixth reinforcing rib (232), and the middle part of the protruding structure (24) is provided with a wire harness through hole (241).

9. The mounting bracket according to claim 1, characterized in that, The fourth reinforcing structure (33) consists of a plurality of seventh reinforcing ribs formed on the outer side wall of the second support part (3). The plurality of seventh reinforcing ribs are spaced apart along the width direction of the second support part (3), and each seventh reinforcing rib extends along the height direction of the second support part (3).

10. A design method for a mounting bracket, characterized in that, The mounting bracket is the mounting bracket according to any one of claims 1-9, and the design method includes the following steps: The simplified model of the mounting bracket is meshed to generate an initial network model. The simplified model of the mounting bracket includes a simplified model of the bracket body (1) and simplified models of the first support part (2) and the second support part (3) located at both ends of the bracket body (1). Set the density-variable material domain of the initial network model; A preset load is applied to the initial network model, and boundary conditions are set for the initial network model. The boundary conditions include response parameters, constraint parameters, and target parameters. The response parameters include volume fraction and modes, and the target parameter is the maximum mode. The optimized structure of the mounting bracket is obtained by calculation using finite element analysis and topology optimization algorithm. Based on the optimized structure and process flow analysis of the mounting bracket, the final structure of the mounting bracket is obtained.

Images