Magnesium alloy steering wheel support, instrument board cross beam framework and automobile

Abstract

The utility model provides a magnesium alloy steering wheel support, an instrument panel beam framework and an automobile. The magnesium alloy steering wheel support comprises a main beam extending in the first direction, a steering supporting support and a steering mounting support, wherein the steering supporting support and the steering mounting support extend from the outer side of the main beam in the direction perpendicular to the first direction. And the steering support bracket is provided with connecting edges fixed with the steering mounting bracket on the two sides of the main cross beam respectively. The steering supporting bracket is connected to the main cross beam, the two sets of connecting edges extend towards the two sides of the main cross beam, the two sets of connecting edges and the bottom plate form a triangular supporting structure, torque and bending moment transmitted by a steering column can be greatly resisted, and the rigidity of the main cross beam and a cross beam framework comprising the steering wheel bracket is guaranteed. The magnesium alloy steering wheel support has the advantages of being stable in structure and convenient to form, having the strength of a traditional beam framework and being light.

Description

Technical Field

[0001] This utility model provides an instrument panel frame, particularly a magnesium alloy steering wheel bracket, an instrument panel crossbeam frame, and an automobile. Background Technology

[0002] The dashboard crossbeam frame is one of the fundamental components supporting a vehicle, bearing the weight of various central control systems, air conditioning, steering wheel modules, and other components. It is a crucial part of automotive engineering. The steering wheel bracket, part of the dashboard crossbeam frame, is responsible for supporting the steering wheel module and resisting vertical and lateral forces transmitted from the steering wheel. A typical steering wheel bracket includes a main crossbeam. The support structure for the steering wheel is usually designed on the surface of the main crossbeam, using multiple mounting holes on the surface or sheet metal extending from the main crossbeam for positioning and mounting. This results in the main crossbeam surface bearing excessive load. Furthermore, traditional steering tube connection brackets are typically directly connected to the main crossbeam via a plate structure, which can generate noticeable vibrations during steering wheel operation. Utility Model Content

[0003] The purpose of this utility model is to provide a magnesium alloy steering wheel bracket, including a main crossbeam extending along a first direction and a steering support bracket and a steering mounting bracket extending perpendicular to the first direction on the outer side of the main crossbeam, wherein the steering support bracket and the steering mounting bracket are respectively placed on both sides of the main crossbeam.

[0004] The position of the steering support bracket relative to the steering mounting bracket is defined as the first side, and the opposite side is defined as the second side. The inner side of the steering support bracket is arranged around the outer side of the main crossbeam and extends to the first side and the second side of the main crossbeam respectively. The steering support bracket is connected to the steering mounting bracket through the connecting side. The bottom of the two sets of connecting sides are connected through the base plate and form a triangular support structure with the base plate.

[0005] According to one embodiment of the present invention, the main crossbeam is formed by two L-shaped half-shells, a first half-shell and a second half-shell, enclosing each other. A steering support bracket and a steering mounting bracket are respectively disposed on the outer surfaces of the first and second half-shells. According to another embodiment of the present invention, the second wing plate extends from the side of the main crossbeam to a second side, and a reinforcing plate is connected to the end of the second wing plate. The other end of the reinforcing plate is fixedly connected to the connecting edge of the steering support bracket near the second side.

[0006] According to one embodiment of the present invention, the steering support bracket is configured to include at least two sets of support portions extending along a first direction on the outer side of the main crossbeam and a docking plate disposed between the two sets of support portions, wherein the docking plate is provided with a connector for fixing and connecting the steering mounting bracket.

[0007] According to one embodiment of the present invention, each set of support parts includes two side plates whose side walls extend outward along a first direction perpendicular to the two independent crossbeams. The two side plates are parallel to each other, and a bottom plate is connected to the bottom of the two side plates.

[0008] According to one embodiment of the present invention, the sidewall of the main crossbeam is broken between two side plates.

[0009] According to one embodiment of the present invention, at least one set of reinforcing ribs are provided at the connection position between the side plate and the bottom plate.

[0010] According to one embodiment of the present invention, a notch is provided at the end position of the side plate connecting to the steering support bracket.

[0011] This utility model also provides an instrument panel crossbeam frame, including a secondary crossbeam extending along a first direction and the aforementioned magnesium alloy steering wheel bracket, wherein the main crossbeam is connected to the driver's side of the secondary crossbeam.

[0012] According to one embodiment of the present invention, it further includes a first side bracket extending perpendicular to the first direction. The first side bracket is located between the secondary crossbeam and the main crossbeam, and the end faces of the first side bracket opposite to the secondary crossbeam and the main crossbeam are respectively provided with welding contours that match the end face shapes of the secondary crossbeam and the main crossbeam.

[0013] This utility model also provides an automobile, including the magnesium alloy dashboard crossbeam frame as described above.

[0014] This invention provides a magnesium alloy steering wheel bracket, comprising a main crossbeam extending along a first direction, and a steering support bracket and a steering mounting bracket extending perpendicularly to the first direction on the outer side of the main crossbeam. The steering support bracket has connecting edges on both sides of the main crossbeam that are fixed to the steering mounting bracket. The steering support bracket is connected to the main crossbeam, and the two sets of connecting edges extend to both sides of the main crossbeam, forming a triangular support structure with the base plate. This structure can significantly resist the torque and bending moment transmitted from the steering column, ensuring the rigidity of the main crossbeam and the crossbeam frame containing the steering wheel bracket. The magnesium alloy steering wheel bracket provided by this invention has the advantages of structural stability and convenient molding, possessing the strength of traditional crossbeam frames while being lightweight. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the steering wheel bracket;

[0016] Figure 2 This is an exploded view of the two halves of the steering wheel bracket;

[0017] Figure 3 This is a schematic diagram showing the connection between the steering mounting bracket and the second half-shell;

[0018] Figure 4This is a schematic diagram showing the connection between the steering support bracket and the first half-shell;

[0019] Figure 5 This is a schematic diagram of the triangular structure of the steering support bracket cross-section.

[0020] Figure 6 This is a schematic diagram of the structure of a dashboard crossbeam frame according to the present invention;

[0021] Figure 7 This is an exploded view of the instrument panel crossbeam frame;

[0022] Figure 8 This is a structural diagram of the central control bracket;

[0023] Figure label:

[0024] Steering wheel bracket 1, main crossbeam 11, first half shell 111, second half shell 112, welded flange 113, positioning piece 114, insert piece 115, slot 116, steering support bracket 12, connecting edge 121, side plate 122, bottom plate 123, butt plate 124, reinforcing rib block 125, notch 126, weight reduction hole 127, steering mounting bracket 13, steering column mounting hole 131, first wing plate 132, second wing plate 133, reinforcing plate 134, first connecting flange 135, second connecting flange 136, connecting hole 137; central control bracket 2, first side bracket 21, second side bracket 22, welded groove 23, central control crossbeam 24; secondary crossbeam 3; sheet metal parts 4; support components 5. Detailed Implementation

[0025] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a 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 utility model.

[0028] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0029] Example 1: As Figure 1 and Figure 2 The magnesium alloy steering wheel bracket 1 shown provides structural strength and steering capability for the main body of the steering wheel on the driver's side of the vehicle and the front fascia assembly. It includes a main crossbeam 11 extending along a first direction, and a steering support bracket 12 and a steering mounting bracket 13 extending perpendicularly to the first direction from the outer side of the main crossbeam 11. The main crossbeam 11 is a tubular structure with a square cross-section and is connected to one end of the instrument panel frame crossbeam, providing basic strength for the connection of the steering wheel body. The steering mounting bracket 13 and the steering support bracket 12 are used to connect the steering wheel body and the front fascia assembly. The steering mounting bracket 13 has a steering column mounting hole 131 for inserting the steering tube of the steering wheel. The steering support bracket 12 and the steering mounting bracket 13 are connected to each other. After the steering mounting bracket 13 is connected to the vehicle body, the steering support bracket 12 provides support for the steering mounting bracket 13, ensuring the connection strength between the steering mounting bracket 13 and the main crossbeam 11.

[0030] In this embodiment, the main crossbeam 11 is formed by two L-shaped half-shells, a first half-shell 111 and a second half-shell 112, enclosing each other. Each half-shell consists of two side surfaces. The first half-shell 111 and the second half-shell 112 are each formed separately. The two side surfaces that make up the first half-shell 111 and the second half-shell 112 are attached together along their edges and welded along the attachment points. After welding, the first half-shell 111 and the second half-shell 112 enclose the aforementioned rectangular cross-section. Specifically, the side edges of the first half-shell 111 and the second half-shell 112 are provided with welded flanges 113 extending in a first direction. Two sets of welded flanges 113 that are close to each other are attached together, which can ensure the stable welding structure of the first half-shell 111 and the second half-shell 112.

[0031] The steering support bracket 12 and the steering mounting bracket 13 are respectively located on the outer sides of the first half-shell 111 and the second half-shell 112. The side of the first half-shell 111 opposite to the second half-shell 112 is defined as the first side, and the side of the second half-shell 112 opposite to it is defined as the second side. It can be seen that the connection part of the steering wheel bracket 1 with the vehicle body and the steering tube is located on the second side. The inner side of the steering support bracket 12 is connected to the outer side of the first half-shell 111, and its stress is concentrated on the first side. The stress on both sides of the main crossbeam 11 is reasonable, thereby improving the connection stability of the main crossbeam 11.

[0032] Figure 3 and Figure 4 These are schematic diagrams of the steering mounting bracket 13 and the steering support bracket 12. The steering support bracket 12, located outside the main crossbeam 11, offers advantages in improving structural strength and stable connection. The inner side of the steering support bracket 12 surrounds the outer side of the main crossbeam 11. The outer side of the steering support bracket 12 has two sets of connecting edges 121 that mate with the steering mounting bracket 13. These two sets of connecting edges 13 are positioned on both sides of the main crossbeam 11 and extend outwards from it. The ends of the two sets of connecting edges 13 furthest from the main crossbeam support are connected via a base plate 123. Connecting components, such as threaded connectors and riveted components, are provided on the connecting edges 121. The steering mounting bracket 13 mates with the steering support bracket 12 simultaneously through the two sets of connecting edges 13. After the steering wheel body is installed, the load generated by the steering wheel body is transferred to the steering support bracket 12 via the connecting edges 13, reducing vibrations on the driver's side during vehicle movement.

[0033] like Figure 5 As shown, the two sets of connecting edges 13 are each free from the two ends of the base plate 123 and approach the side of the main crossbeam 11, forming a triangular structure with the base plate 123 in the cross-sectional direction of the main crossbeam 11. The base plate 123 is the long side of the triangular structure, and the stress is transmitted to the base plate 123 through the two sets of connecting edges 13. The triangular structure firstly has a certain degree of stability, and the steering support bracket 12 can bear a larger load. After the stress is concentrated, the connection strength between the steering wheel bracket and the vehicle body is improved. At the same time, the triangular structure is more suitable for the working state of the steering wheel when the vehicle is in motion, and can resist the torque and bending moment transmitted by the steering tube, thereby improving the operability of the steering wheel when turning.

[0034] Based on this, for the sake of weight reduction, the steering support bracket 12 is configured to include at least two sets of support portions extending along a first direction on the outer side of the main crossbeam 11 and a connecting plate 124 disposed between the two sets of support portions. Each set of support portions includes two side plates 122 extending outward from the sidewalls of the main crossbeam 11 along a direction perpendicular to the first direction. The cross-section of each side plate 122 presents the aforementioned triangular structure, with the two sides parallel to each other. A bottom plate 123 is connected to the bottom of the two side plates 122, and the side plates 122 and the bottom plate 123 together form a hollow U-shaped support portion. The support portion is supported by the portions of the two side plates 122 connected to the pipe wall, greatly reducing the mass occupied by the support portion.

[0035] The docking plate 124 is located between two adjacent sets of support parts, and its two ends along the first direction are respectively connected to two adjacent side plates 122. The aforementioned threaded connectors and riveting parts are provided on the docking plate 124, and the steering mounting bracket 13 is fixed to the surface of the docking plate 124 by connectors.

[0036] As shown in the attached drawings, the steering support bracket 12 is mounted on the outer surface of the main crossbeam 11 via side plates 122. Therefore, the steering support bracket 12 and the side wall of the main crossbeam 11 can be integrally die-cast. Meanwhile, the base plate 123 connects the two side plates 122, serving as a connecting element. Thus, the portion of the main crossbeam 11 between the two side plates 122 is further designed as a discontinuous structure. When the main crossbeam 11 is subjected to axial force, the force is concentrated on the base plate 123 via the side plates 122, reducing the overall weight of the steering wheel without affecting the connection stability of the steering support bracket 12. The surface of the base plate 123 has multiple weight-reducing holes 127, further reducing the mass of the steering support bracket 12.

[0037] Furthermore, at least one set of reinforcing ribs 125 are provided at the connection position between the side plate 122 and the bottom plate 123 to ensure the structural stability of the bend between the side plate 122 and the bottom plate 123.

[0038] It should be noted that the aforementioned triangular structure is not a triangle in a purely geometric sense. The purpose of the triangular structure is to concentrate stress on the steering support bracket 12, and the cross-sectional shape of the steering support bracket 12 can be appropriately adjusted according to specific stress requirements. For example... Figure 4 As shown, the mating plate 124 is located on the side of the two side plates 122 away from the main crossbeam 11 and is isolated from the side wall of the main crossbeam 11. Therefore, a notch 126 is provided at the end position of the side plate 122 connected to the steering support bracket 12, so that after the steering mounting bracket 13 is fixedly connected to the steering support bracket 12, the stress generated is concentrated in the area of ​​the mating plate 124, reducing the pressure of the steering mounting bracket 13 on the side plate 122 and reducing the deformation of the side plate 122.

[0039] Furthermore, a positioning piece 114 is provided inside the cavity of the main crossbeam 11. The positioning piece 114 is fixedly connected to the side of one of the first half-shells 111 and the second half-shell 112, and can be formed together with the side of that half-shell. A slot 116 is provided on the side of the other half-shell corresponding to the position of the positioning piece 114. The end face of the positioning piece 114 is provided with an insert 115 that extends into the slot 116. The installation position of the first half-shell 111 and the second half-shell 112 is quickly positioned by the cooperation of the slot 116 and the insert 115. The inserts 115 on the same set of positioning pieces 114 can be set to two sets, with the corresponding slots 116 located on two sides of the half-shell respectively, so that the installation position is positioned by both directions.

[0040] The steering mounting bracket 13 extends from the side of the second half-shell 112 toward the first and second sides of the main crossbeam 11, respectively, and is provided with a first wing plate 132 and a second wing plate 133. The first wing plate 132 is parallel to the connecting edge 121 of the steering support bracket 12 near the first side, and the first wing plate 132 is in contact with the upper surface of the connecting edge 121. It is fixedly connected to the steering support bracket 12 by a connector provided on the connecting edge 121.

[0041] The second wing plate 133 extends from the side of the main crossbeam 11 towards the second side. A reinforcing plate 134 is connected to the end of the second wing plate 133, and the other end of the reinforcing plate 134 is fixedly connected to the connecting edge 121 of the steering support bracket 12 near the second side. The second wing plate 133, the reinforcing plate 134, and the main crossbeam 11 form a stable triangular support structure. The steering tube is connected to the second wing plate 133 and the reinforcing plate 134. This triangular support structure extends from the connection point between the second wing plate 133, the reinforcing plate 134, and the steering tube towards the main crossbeam 11. The opposite ends of the second wing plate 133 and the reinforcing plate 134 are connected to the side of the main crossbeam 11 and the connecting edge 121 of the steering support bracket 12, respectively, allowing the torque and bending moment at the steering tube to be more effectively transmitted to the main crossbeam 11 and the steering support bracket 12. The second wing plate 133 and the reinforcing plate 134 are further configured as hollow U-shaped groove structures to reduce the mass of the steering mounting bracket 13.

[0042] Furthermore, the reinforcing plate 134 and the connecting edge 121 of the steering support bracket 12 are at an angle to each other. The end of the reinforcing plate 134 near the connecting edge 121 is bent and extended to provide a first connecting flange 135. The first connecting flange 135 is parallel to the connecting edge 121 and is fixedly attached to the surface of the connecting edge 121 by a connector, so that the reinforcing plate 134 is fixedly connected to the steering support bracket 12.

[0043] Furthermore, the reinforcing plate 134 and the second wing plate 133 are each bent and extended at their respective ends to form a second connecting flange 136. The two sets of second connecting flanges 136 are arranged in parallel and fitted together. Connecting holes 137 are opened on the two sets of second connecting flanges 136 respectively. The two sets of second connecting flanges 136 are connected by common connectors to fix the position between the reinforcing plate 134 and the second wing plate 133, so as to enhance the stability of the connection with the steering tube and the outer periphery of the vehicle body.

[0044] Example 2: As Figure 6 and Figure 7 The instrument panel crossbeam frame shown includes a secondary crossbeam 3 extending along a first direction. In embodiment 1, the steering wheel bracket 1 is connected to the driver's side of the secondary crossbeam 3. A center console bracket 2 is connected to the secondary crossbeam 3 perpendicular to the first direction. The steering wheel bracket 1 connects to the front bulkhead assembly and steering wheel tube on the driver's side of the vehicle, while the center console bracket 2 connects to the center console assembly of the vehicle's instrument panel. The main crossbeam 11 and the secondary crossbeam 3 together form the basic part of the instrument panel, providing support for the connection between the crossbeam frame and the vehicle body. The instrument panel crossbeam frame provided by this invention is made of magnesium alloy, offering the advantage of lightweight while ensuring the basic connection strength. Traditional crossbeam frames are typically one-piece structures, making molding difficult, especially for lightweight metal materials such as magnesium alloys, requiring structural design of the crossbeam frame's cross-section, further hindering one-piece molding. The purpose of this invention is to provide a crossbeam frame that simplifies the connection structure between its components without affecting the supporting strength of the crossbeam frame.

[0045] The steering wheel bracket 1, sub-crossbeam 3, and center console bracket 2 provided by this utility model are each formed by magnesium alloy castings and then connected into an integral structure by welding. Specifically, the center console bracket 2 includes a first side bracket 21 extending along a first direction perpendicular to the sub-crossbeam 3. One end of the first side bracket 21 is located between the main crossbeam 11 and the sub-crossbeam 3, and the part of the first side bracket 21 connected to the main crossbeam 11 and the sub-crossbeam 3 has a welding contour that matches the end face shape of the main crossbeam 11 and the steering wheel bracket 1. The welding position is positioned by the cooperation between the welding contour and the end face. The end face shape of the main crossbeam 11 and the sub-crossbeam 3 can be set as triangular or circular, or as rectangular as provided in this embodiment.

[0046] like Figure 6 and Figure 7As shown, both the main crossbeam 11 and the secondary crossbeam 3 are magnesium alloy square tube castings extending along the first direction. The castings have an overall long tubular structure with rectangular end faces. At least one set of sheet metal parts 4 connected to the vehicle body are provided on the tube walls of the main crossbeam 11 and the secondary crossbeam 3. All four end faces of the castings can serve as assembly planes for vehicle body connection. Corresponding to the rectangular cross sections of the main crossbeam 11 and the secondary crossbeam 3, the welding profile on the first side bracket 21 consists of welding grooves 23 respectively located on both sides of the first side bracket 21. The inner walls of the welding grooves 23 surround the outer side of the end faces of the main crossbeam 11 and the secondary crossbeam 3, and contact the outer walls of the end faces of the main crossbeam 11 and the secondary crossbeam 3. By inserting the ends of the main crossbeam 11 and the secondary crossbeam 3 into the corresponding welding grooves 23, the welding positions of the main crossbeam 11 and the secondary crossbeam 3 on the first side bracket 21 can be located. The welded crossbeam frame can maintain considerable stability. Meanwhile, the main crossbeam 11 and the secondary crossbeam 3 are usually not on the same axis. In this case, as long as the welding grooves 23 on both sides of the first side bracket 21 are staggered vertically, the main crossbeam 11 and the secondary crossbeam 3 are welded to both sides of the first side bracket 21 respectively, which will not affect the overall strength of the crossbeam frame.

[0047] It should be noted that the welding contour mentioned in this utility model is used to locate the welding position on the end sides of the main crossbeam 11 and the secondary crossbeam 3. Its structure is not limited to the welding groove 23 structure listed in this embodiment, and can also be set as a welding protrusion structure. The inner cavity of the main crossbeam 11 and the secondary crossbeam 3 is set as a hollow structure, and the cross section of the welding protrusion is also set as rectangular, so that it can be inserted into the hollow inner cavity of the main crossbeam 11 and the secondary crossbeam 3. The outer surface of the welding protrusion is in contact with the inner side of the hollow inner cavity, thereby locating the welding position of the square tube casting. Similarly, the welding contour can be set as an annular groove structure composed of an inner wall and an outer wall, with the inner wall and outer wall of the annular groove respectively in contact with the inner and outer sides of the main crossbeam 11 and the secondary crossbeam 3.

[0048] In this embodiment, the secondary crossbeam 3 is a cast magnesium alloy profile, and the central control bracket 2 is die-cast from magnesium alloy. Sheet metal parts 4 connected to the vehicle body are provided on the walls of the main crossbeam 11 and the secondary crossbeam 3. On the opposite sides of the main crossbeam 11, the secondary crossbeam 3, and the first side bracket 21, other support components 5 connected to the vehicle body can be added by welding. The positions where the support components 5 connect to the main crossbeam 11 and the secondary crossbeam 3 have welding contours that match the end face shapes of the main crossbeam 11 and the secondary crossbeam 3, thus positioning the welding positions of the support components 5. Each support component 5 is formed individually and then welded to the ends of the main crossbeam 11 and the secondary crossbeam 3 using the positioning of the welding contours.

[0049] like Figure 8As shown, the center console bracket 2 also includes a second side bracket 22 extending from the sub-crossbeam 3 along a direction perpendicular to the first direction, and a center console crossbeam 24 disposed between the first side bracket 21 and the second side bracket 22. One end of the second side bracket 22 is welded to the side wall of the sub-crossbeam 3. The center console crossbeam 24, the first side bracket 21, and the second side bracket 22 together form a support frame for positioning the instrument panel center console system and positioning the installation position of the vehicle body center console. The center console crossbeam 24, the first side bracket 21, and the second side bracket 22 can be further configured as a U-shaped channel structure, which is convenient to form and can reduce the weight of the entire center console bracket 2.

[0050] This utility model also proposes an automobile, which includes an instrument panel crossbeam frame. The specific structure of the instrument panel crossbeam frame is as described in the above embodiments. Since this automobile 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 are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnesium alloy steering wheel bracket, characterized in that: It includes a main crossbeam (11) extending along a first direction and a steering support bracket (12) and a steering mounting bracket (13) extending perpendicular to the first direction on the outer side of the main crossbeam (11), wherein the steering support bracket (12) and the steering mounting bracket (13) are respectively placed on both sides of the main crossbeam (11); The position of the steering support bracket (12) relative to the steering mounting bracket (13) is defined as the first side, and the other side is defined as the second side. The inner side of the steering support bracket (12) is provided around the outer side of the main crossbeam (11) and extends to the first side and the second side of the main crossbeam (11) respectively. The steering support bracket (12) is connected to the steering mounting bracket (13) through the connecting edge (121). The bottom of the two sets of connecting edges (121) are connected through the base plate (123) and form a triangular support structure with the base plate (123).

2. The magnesium alloy steering wheel bracket as described in claim 1, characterized in that: The main crossbeam (11) is formed by two half-shells, a first half-shell (111) and a second half-shell (112), which are L-shaped in cross-section, enclosing each other. The steering support bracket (12) and the steering mounting bracket (13) are respectively set on the outer side of the first half-shell (111) and the second half-shell (112).

3. The magnesium alloy steering wheel bracket as described in claim 2, characterized in that: The steering support bracket (12) is configured to include at least two sets of support parts extending along a first direction outside the main crossbeam (11) and a docking plate (124) disposed between the two sets of support parts. The docking plate (124) is provided with a connector for fixing the steering mounting bracket (13).

4. A magnesium alloy steering wheel bracket as described in claim 3, characterized in that: Each set of support units includes two self-contained crossbeams (11) with side plates (122) extending outward along a first direction, the two side plates (122) being parallel to each other, and a bottom plate (123) connecting to the bottom of the two side plates (122).

5. A magnesium alloy steering wheel bracket as described in claim 4, characterized in that: The sidewall of the main beam (11) is broken between the two side plates (123).

6. A magnesium alloy steering wheel bracket as described in claim 4, characterized in that: At least one set of reinforcing ribs (125) are provided at the connection position between the side plate (122) and the bottom plate (123).

7. A magnesium alloy steering wheel bracket as described in claim 4, characterized in that: The surface of the base plate (123) is provided with multiple weight-reducing holes (127).

8. A magnesium alloy steering wheel bracket as described in claim 4, characterized in that: The side plate (122) is provided with a notch (126) at the end position where it connects to the steering support bracket (12).

9. A dashboard crossbeam frame, characterized in that: Includes a sub-beam (3) extending along a first direction and a magnesium alloy steering wheel bracket as described in any one of claims 1-8, wherein the main beam (11) is connected to the driver's side of the sub-beam (3).

10. A car, characterized in that, Includes the instrument panel crossbeam frame as described in claim 9.

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