Integrally-formed instrument panel assembly support for magnesium alloy

Abstract

The invention provides an integrally-formed instrument panel assembly support for magnesium alloy. The integrally-formed instrument panel assembly support comprises a DLP installation support, an instrument panel framework upper body, a defrosting air duct installation support, an HUD, a fuse box support, an HUD fulcrum, an entertainment host installation support, a structure enhancement area, a first cross beam, a second cross beam and a third cross beam. All the structures are integrally formed, and the wall thickness does not exceed 2.3 mm. A traditional split type C801CCB instrument panel assembly support is changed into an integrally formed instrument panel assembly support, the structural relation of the instrument panel assembly support is improved, the structure enhancement area is added, and the HUD fulcrum, the HUD and the third cross beam are integrally fixed, so that the production process is optimized, the cost is reduced, the product quality is greatly reduced, and meanwhile, the strength of the instrument panel assembly support is ensured to be online.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy electric vehicle parts and components, and in particular to an integrated magnesium alloy instrument panel assembly bracket. Background Art

[0002] The C801 CCB assembly is an instrument panel assembly bracket. It is a relatively centralized design bracket that integrates many features of the original instrument panel bracket and lays the foundation for the design, strength, rigidity and integration of the product structure.

[0003] In the prior art, the HUD fulcrum in the bracket, that is, the fulcrum used to install the HUD head-up display device, requires a separate part that is connected to other mechanisms with screws.

[0004] However, the disadvantage of this is that since each component is independent, multiple molds need to be opened when making the mold. The components produced by each mold will have more or less production errors, and combining these components together will further increase the errors. Not only is the process long, but the scrap rate is also high, so the production cost remains high.

[0005] In addition, since the C801 CCB assembly is an assembled assembly bracket, the connection strength between the components is insufficient. In order to ensure that the overall assembly bracket strength meets the standard, the wall thickness of each component, especially the connection part, must be more than 2.5mm, and the overall bracket is heavier.

[0006] In order to improve the casting process of the prior art, reduce the number of steps and lower the cost, the present invention proposes an integrated casting-molded C801 CCB instrument panel bracket assembly for magnesium alloy. Summary of the invention

[0007] In order to solve the above technical problems, the present invention discloses an integrated magnesium alloy instrument panel assembly bracket. The technical solution of the present invention is implemented as follows:

[0008] An integrated magnesium alloy instrument panel assembly bracket, comprising a DLP mounting bracket, an instrument panel skeleton upper body, a defrost air duct mounting bracket, a HUD head-up display, a fuse box bracket, a HUD fulcrum, an entertainment host mounting bracket, a structural reinforcement area, a first crossbeam, a second crossbeam and a third crossbeam;

[0009] The first crossbeam, the second crossbeam and the third crossbeam are connected in sequence, and the first crossbeam, the second crossbeam and the third crossbeam are integrally formed;

[0010] The upper body of the instrument panel skeleton is arranged at the first end of the first cross beam, the defrost air duct mounting bracket is arranged at the second end of the first cross beam, and the DLP mounting bracket is mounted on one side of the first cross beam close to the upper body of the instrument panel skeleton;

[0011] The first end of the HUD fulcrum is integrally fixed to the third cross beam, and the second end of the HUD fulcrum is integrally fixed to the HUD head-up display;

[0012] The first end of the third cross beam is connected to the second cross beam, and the fuse box bracket is arranged at the second end of the third cross beam;

[0013] The entertainment host mounting bracket is arranged between the fuse box bracket and the HUD fulcrum and is integrally fixed to the third cross beam;

[0014] The structural reinforcement area is integrally fixed to the second cross beam. The structural reinforcement area is of an I-shaped structure, and N reinforcing ribs are arranged on the back of the structural reinforcement area;

[0015] The average wall thickness of the integrally formed magnesium alloy instrument panel assembly bracket is 2.3 mm.

[0016] The number of the reinforcing ribs is ten, and they are equally spaced on the back of the structural reinforcement area.

[0017] The height of each reinforcing rib is 20 mm - 25 mm, the length is 15 mm - 30 mm, and the thickness is 2 mm - 3 mm.

[0018] The present invention provides an integrally cast magnesium alloy C801 CCB instrument panel bracket assembly. In the previous design, the HUD fulcrum used to install the HUD head-up display device required a separate part and was connected to the bracket body with screws. The present invention designs it into an integrally die-cast form, reducing the process and cost.

[0019] In addition, the present invention adds a structural reinforcement area to the second cross beam that the traditional C801 CCB instrument panel bracket assembly does not have. On the one hand, this part of the structure is used to compensate for the insufficient strength caused by reducing the wall thickness. On the other hand, the structural reinforcement area is also the installation position of the automotive central control large screen in the original bracket. Through the adaptability structural adjustment of the central control large screen, the structural reinforcement area does not additionally increase the volume of the bracket assembly, and on the other hand, it can better support the central control large screen.

[0020] Through the above design, the integrally cast magnesium alloy C801 CCB instrument panel bracket assembly reduces the wall thickness from the original 2.5 mm to 2.3 mm, the weight of the product itself is reduced by 400 g, and the strength can be maintained or even exceed that of the original bracket assembly. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only one embodiment of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Among them, the same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0023] Figure 1 It is a front view structural schematic diagram of an integrated molded dashboard assembly bracket for magnesium alloy;

[0024] Figure 2 It is a rear view structural schematic diagram of an integrated molded dashboard assembly bracket for magnesium alloy;

[0025] Figure 3 It is a top view structural schematic diagram of an integrated molded dashboard assembly bracket for magnesium alloy;

[0026] Figure 4 For Figures 1-3 The test data graph of the strength simulation test of the shown embodiment in the Hyperworks simulation software.

[0027] In the above drawings, each reference numeral represents:

[0028] 1, DLP mounting bracket;

[0029] 2, upper body of the dashboard skeleton;

[0030] 3, defrost air duct mounting bracket;

[0031] 4, HUD head-up display;

[0032] 5, fuse box bracket;

[0033] 6, HUD fulcrum;

[0034] 7, entertainment host mounting bracket;

[0035] 8, structural reinforcement area;

[0036] 9, first cross beam;

[0037] 10, second cross beam;

[0038] 11. The third cross beam. Detailed implementation manners

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs; the terms used in the detailed implementation manners are only for the purpose of describing specific embodiments, and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the description of the specification, claims and drawings of the present invention are intended to cover non-exclusive inclusion.

[0041] In the description of the detailed implementation manners of the present invention, technical terms such as "first" and "second" are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0042] Referring to "embodiments" in the present invention means that specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of the present invention. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present invention may be combined with other embodiments.

[0043] In the description of the embodiments of the present invention, the term "and / or" is only a description of the associated relationship of associated objects, indicating that there may be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present invention generally represents an "or" relationship between the front and rear associated objects.

[0044] Throughout the present invention, numerical values represent approximate measures or limits of ranges to encompass minor deviations from a given value and embodiments having approximately the mentioned value and embodiments having the exact value mentioned. Except for the working examples provided at the end of the detailed description, all numerical values of parameters (e.g., quantities or conditions) in this specification (including the appended claims) should be understood to be modified in all cases by the term "about", whether or not "about" actually appears before the numerical value. "About" indicates that there is some minor inaccuracy in the stated numerical value (reasonably close to the exact value of the stated value; approximately or reasonably close to the stated value; almost). If the inaccuracy provided by "about" is not otherwise understood in the art in this ordinary meaning, then "about" as used in the present invention indicates at least the variations that can be produced by ordinary methods of measuring and using such parameters. For example, "about" can include variations of less than or equal to 5%, optionally less than or equal to 4%, optionally less than or equal to 3%, optionally less than or equal to 2%, optionally less than or equal to 1%, optionally less than or equal to 0.5%, and in some aspects, optionally less than or equal to 0.1%.

[0045] In addition, the disclosure of a range includes the disclosure of all values within the entire range and further divided ranges, including the endpoints and sub-ranges given for these ranges.

[0046] The technical solution of the present invention will be described in more detail below in conjunction with the drawings and embodiments.

[0047] Embodiment: In a specific embodiment, as Figures 1-3 shown, an integrated molded dashboard assembly bracket for magnesium alloy includes a DLP mounting bracket, an upper body of the dashboard skeleton, a defrost air duct mounting bracket, a HUD head-up display, a fuse box bracket, a HUD fulcrum, an entertainment host mounting bracket, a structural reinforcement area, a first cross beam, a second cross beam, and a third cross beam.

[0048] The first cross beam, the second cross beam, and the third cross beam are connected in sequence, and the first cross beam, the second cross beam, and the third cross beam are integrally formed.

[0049] The upper body of the dashboard skeleton is arranged at the first end of the first cross beam, the defrost air duct mounting bracket is arranged at the second end of the first cross beam, and the DLP mounting bracket is installed on one side of the first cross beam close to the upper body of the dashboard skeleton.

[0050] The first end of the HUD fulcrum is integrally fixed to the third cross beam, and the second end of the HUD fulcrum is integrally fixed to the HUD head-up display.

[0051] The first end of the third cross beam is connected to the second cross beam, and the fuse box bracket is arranged at the second end of the third cross beam.

[0052] The entertainment host installation bracket is arranged between the fuse box bracket and the HUD fulcrum and is integrally fixed with the third cross beam.

[0053] The structural reinforcement area is integrally fixed with the second cross beam. The structural reinforcement area is in an I-shaped structure, and N reinforcing ribs are arranged on the back of the structural reinforcement area;

[0054] The average wall thickness of the dashboard assembly bracket made of integrally formed magnesium alloy is 2.3 mm.

[0055] The number of the reinforcing ribs is ten, and they are evenly distributed on the back of the structural reinforcement area.

[0056] The height of each reinforcing rib is 20 mm - 25 mm, the length is 15 mm - 30 mm, and the thickness is 2 mm - 3 mm.

[0057] In this embodiment, the LP installation bracket is used to install the digital light processor, and the wall thickness is about 2.3 mm.

[0058] The upper body of the dashboard skeleton is used to support the installation of all soft decorations on the dashboard surface, and the wall thickness is about 2.3 mm.

[0059] The defrost air duct installation bracket is used for installing the ventilation duct for in-vehicle defrosting and defogging, and the wall thickness is about 2.3 mm.

[0060] The HUD head-up display is used for installing the driving data projected onto the front windshield, and the wall thickness is about 2.3 mm.

[0061] The fuse box bracket is used for installing the in-vehicle fuse box, and the wall thickness is about 2.3 mm.

[0062] The entertainment host installation bracket is used for installing all software system operation processors in the vehicle, and the wall thickness is about 2.3 mm.

[0063] The structural reinforcement area is used to enhance the place with the highest strength load after the product wall thickness is thinned, that is, the installation position of the central control large screen. There was no structural reinforcement area at the original installation position of the central control large screen, and it was empty between the two side mounting brackets. In this embodiment, the two side mounting brackets are connected through the structural reinforcement area to ensure that the place with the highest strength load after the product wall thickness is thinned can still maintain or exceed the original strength.

[0064] In this embodiment, the HUD fulcrum connects the third cross beam and the HUD head-up display into a whole. In the original design, a separate part was required in this area and it was connected into one body with screws. Now it is designed to be integrally die-cast, reducing the processes and costs.

[0065] Strength test:

[0066] To verify whether the strength of this product can meet the product standard strength, the C801 CCB instrument panel bracket assembly in the prior art and the C801 CCB instrument panel bracket assembly of this embodiment are respectively used for strength simulation tests in the Hyperworks simulation software.

[0067] The test parameters are as follows:

[0068] At the center points (force application points) of points a, b, c, and d as shown in Figure 4 apply a load Fu of 600 N, where points a, b, c, and d are the installation points of the 4 steering columns of the C801 CCB instrument panel bracket assembly.

[0069] According to the requirements, the displacement of the force application point (U) under the action of the load Fu shall not exceed 2.4 mm.

[0070] According to the simulation test, the test displacement value of the simulation with a wall thickness of 2.5 mm (C801 CCB instrument panel bracket assembly in the prior art) is 2.3 mm, and the test displacement value of the simulation with a wall thickness of 2.3 mm (C801 CCB instrument panel bracket assembly of this embodiment) is 2.17 mm.

[0071] From the above data, it can be seen that after optimizing the structure of the C801 CCB instrument panel bracket assembly in this embodiment, not only through integrated die-casting, the installation of multiple parts is saved, the manufacturing cost is saved, but also the rigidity effect of the product is more ideal and the overall quality is greatly reduced.

[0072] It should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated magnesium alloy instrument panel assembly bracket, characterized in that: Including DLP mounting bracket, instrument panel frame upper body, defrost duct mounting bracket, HUD head-up display, fuse box bracket, HUD fulcrum, entertainment host mounting bracket, structural reinforcement area, first crossbeam, second crossbeam and third crossbeam; The first crossbeam, the second crossbeam and the third crossbeam are connected in sequence, and the first crossbeam, the second crossbeam and the third crossbeam are integrally formed; The instrument panel skeleton upper body is arranged at the first end of the first crossbeam, the defrost duct mounting bracket is arranged at the second end of the first crossbeam, and the DLP mounting bracket is installed on a side of the first crossbeam close to the instrument panel skeleton upper body; The first end of the HUD fulcrum is fixed integrally with the third crossbeam, and the second end of the HUD fulcrum is fixed integrally with the HUD head-up display; The first end of the third crossbeam is connected to the second crossbeam, and the fuse box bracket is arranged at the second end of the third crossbeam; The entertainment host mounting bracket is arranged between the fuse box bracket and the HUD fulcrum and is integrally fixed to the third crossbeam; The structural reinforcement area is fixed integrally with the second crossbeam, the structural reinforcement area is an I-shaped structure, and N reinforcing ribs are arranged on the back of the structural reinforcement area; The average wall thickness of the integrally formed magnesium alloy instrument panel assembly bracket is 2.3 mm.

2. The integrally formed magnesium alloy instrument panel assembly bracket according to claim 1, characterized in that: The number of the reinforcing ribs is ten and they are evenly spaced and distributed on the back of the structural reinforcement area.

3. The integrally formed magnesium alloy instrument panel assembly bracket according to claim 2, characterized in that: Each of the reinforcing ribs has a height of 20mm-25mm, a length of 15mm-30mm, and a thickness of 2mm-3mm.

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