Automobile steering column support assembly
By designing an automotive steering column bracket assembly that includes two sets of frames and connecting brackets, the problem of low structural stability and steering mode frequency in the prior art is solved, and higher structural stability and steering mode frequency are achieved, steering wheel jitter is avoided, and weight is reduced.
Patent Information
- Application Number
- CN202510056788.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-05-23
AI Technical Summary
The existing automotive steering column bracket assembly has low structural stability and low steering mode frequency, which is prone to resonance and causing steering wheel jitter.
An automobile steering column bracket assembly is designed, adopting two sets of frames and a connecting bracket structure, the frame includes a first bracket, a second bracket and a third bracket, through the connection of these brackets, forming an integral structure to enhance structural stability and steering mode frequency.
Through the improved structural design, the structural stability and steering mode frequency of the vehicle steering column bracket assembly are improved, the steering wheel jitter caused by resonance is avoided, and the overall weight is reduced.
Smart Images
Figure CN120024393A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of steering column mounting structures, in particular to an automobile steering column bracket assembly. Background Art
[0002] The steering column is a key component in the automobile steering system. Its main function is to transmit the driver's steering action to the steering gear to realize the vehicle's steering operation. The steering column is installed through a bracket assembly. The bracket assembly consists of a steering column mounting bracket, a front bulkhead bracket, and a reinforcement bracket welded on the main beam on the driver's side to form a steering column bracket assembly. The bracket is a stamped iron bracket. The front bulkhead bracket and the steering column mounting bracket are both single-body structures, which results in the overall structural stability of the bracket assembly, a low steering modal frequency, and easy resonance during operation. Summary of the invention
[0003] The purpose of the present invention is to provide an automobile steering column bracket assembly, which improves the structural stability and the steering modal frequency.
[0004] In order to achieve the above object, the present invention provides a vehicle steering column bracket assembly, having a first direction, a second direction and a third direction intersecting in pairs, including:
[0005] A tube beam arranged along the first direction;
[0006] a connecting bracket connected to the pipe beam along the third direction; and
[0007] Two groups of frames are correspondingly arranged on both sides of the connecting bracket along the first direction, the frames include a first bracket, a second bracket and a third bracket, the first bracket is installed on the pipe beam along the second direction, the second bracket is installed on the pipe beam along the third direction, a first end of the third bracket is connected to the first bracket, and a second end of the third bracket is connected to the second bracket;
[0008] Wherein, two groups of second brackets of the frame are connected to two ends of the connecting bracket, and a first mounting position is formed between the two second brackets, and the first mounting position is configured to mount the lower part of the steering column.
[0009] In some embodiments, two fourth brackets are included, the fourth brackets are mounted on the tube beam and away from the second bracket, a second mounting position is formed between the two fourth brackets, and the second mounting position is configured to mount the upper portion of the steering column.
[0010] In some embodiments, the fourth bracket includes a fourth shell and a fourth partition rib disposed in the fourth shell, and the fourth partition rib divides the cavity in the fourth shell into multiple cavities.
[0011] In some embodiments, the tube beam, the connecting bracket, the frame and the fourth bracket are all made of aluminum alloy.
[0012] In some embodiments, the first bracket includes a first shell and a plurality of partitions disposed in the first shell, the first shell is opened on both sides along the first direction, and the partitions divide the first shell into a plurality of spaces.
[0013] In some embodiments, the second bracket includes a second shell and a second partition rib disposed in the second shell, and the second partition rib divides the cavity in the second shell into multiple cavities.
[0014] In some embodiments, the third bracket includes a third outer shell and a third partition rib disposed in the third outer shell, and the third partition rib divides the cavity in the third outer shell into multiple cavities.
[0015] In some embodiments, the first bracket is spaced apart from a side of the second bracket away from the connecting bracket.
[0016] In some embodiments, the first bracket and the second bracket are both perpendicular to the tube beam.
[0017] In some embodiments, the cross-section of the tube beam is polygonal, and the connecting bracket, the first bracket and the second bracket are all fitted and fixed to the surface of the tube beam.
[0018] The present invention provides a vehicle steering column bracket assembly, which has the following beneficial effects compared with the prior art:
[0019] Two groups of frames are correspondingly arranged on both sides of the connecting bracket along the first direction, and the frame includes a first bracket, a second bracket and a third bracket. The first bracket is installed on the tube beam along the second direction, and the second bracket is installed on the tube beam along the third direction. The first end of the third bracket is connected to the first bracket, and the second end of the third bracket is connected to the second bracket, so that the first bracket, the second bracket, the third bracket and the tube beam are connected to form an integral structure, and the second brackets of the two groups of frames are connected to the two ends of the connecting bracket, so that the installation structure of the two groups of frames is firm, the structural stability is improved, and the steering modal frequency is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a front view structural schematic diagram of an automobile steering column bracket assembly provided in some embodiments of the present invention.
[0021] Figure 2 This is a first stereoscopic structural schematic diagram of an automobile steering column bracket assembly provided in some embodiments of the present invention.
[0022] Figure 3 This is a second stereoscopic structural schematic diagram of an automobile steering column bracket assembly provided in some embodiments of the present invention.
[0023] Figure 4 A partial cross-sectional enlarged structural schematic diagram of an automobile steering column bracket assembly provided in some embodiments of the present invention.
[0024] In the figure: 1, pipe beam; 2, connecting bracket; 3, frame; 31, first bracket; 311, first shell; 312, partition; 32, second bracket; 321, second shell; 322, second partition rib; 33, third bracket; 4, fourth bracket; x, first direction; y, second direction; 3, third direction. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0026] It should be understood that, in the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, that is, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, unless otherwise specified, "multiple" means two or more.
[0027] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.
[0028] like Figure 1-4 As shown, the automobile steering column bracket assembly provided by the embodiment of the present invention has a first direction x, a second direction y and a third direction z that intersect each other, and the automobile steering column bracket assembly includes a pipe beam 1, a connecting bracket 2 and two sets of frames 3. Among them, the connecting bracket 2 can connect the two sets of frames 3, and the connecting bracket 2 and the frame are both installed on the pipe beam 1 to make the overall structure stable.
[0029] The pipe beam 1 is arranged along a first direction x. The connecting bracket 2 is connected to the pipe beam along a third direction z. Two sets of frames 3 are correspondingly arranged on both sides of the connecting bracket 2 along the first direction x, and the frames 3 include a first bracket 31, a second bracket 32 and a third bracket 33. The first bracket 31 is installed on the pipe beam 1 along the second direction y, the second bracket 32 is installed on the pipe beam 1 along the third direction z, the first end of the third bracket 33 is connected to the first bracket 31, and the second end of the third bracket 33 is connected to the second bracket 32.
[0030] In this embodiment, the second brackets 32 of the two sets of frames 3 are connected to the two ends of the connecting bracket 2, and a first installation position is formed between the two second brackets 32, and the first installation position is configured to install the lower part of the steering column. In this way, the connecting bracket 2 can improve the torsional rigidity between the two second brackets 32.
[0031] Based on the above structural setting, the first bracket 31 is installed on the tubular beam 1 along the second direction y, the second bracket 32 is installed on the tubular beam 1 along the third direction z, the first end of the third bracket 33 is connected to the first bracket 31, and the second end of the third bracket 33 is connected to the second bracket 32, forming a closed and stable structure, thereby improving the structural stability and being able to improve the stiffness and steering modal frequency of the first installation position.
[0032] like Figure 1 As shown, in some embodiments, the automobile steering column bracket assembly includes two fourth brackets 4, which are mounted on the tube beam 1 and away from the second bracket 32, and a second mounting position is formed between the two fourth brackets 4, and the second mounting position is configured to mount the upper part of the steering column. In this way, the second mounting position can further improve the mounting stability of the steering tube.
[0033] In some embodiments, the fourth bracket 4 includes a fourth shell and a fourth partition rib disposed in the fourth shell, and the fourth partition rib divides the cavity in the fourth shell into multiple cavities. In this way, the structural setting of the fourth bracket 4 can reduce the structural weight while improving the structural strength.
[0034] In some embodiments, the pipe beam 1, the connecting bracket 2, the frame 3 and the fourth bracket 4 are all made of aluminum alloy. Specifically, the pipe beam 1, the connecting bracket 2, the frame 3 and the fourth bracket 4 can be extruded into a closed multi-cavity structure with a complex shape through an aluminum extrusion molding process, which has better rigidity and lighter weight than the traditional stamped iron bracket. In addition, in order to meet the riveting requirements, the thickness of the second bracket 32 and the fourth bracket 4 for installing the steering column is at least 16 mm, and the initial design value of the thickness of the remaining brackets is 8 mm.
[0035] like Figure 4As shown, in some embodiments, the first bracket 31 includes a first shell 311 and a plurality of partitions 312 disposed in the first shell, the first shell 311 is open at both sides along the first direction x, and the partitions 312 divide the first shell 311 into a plurality of spaces. In this way, the structural setting of the first bracket 31 can reduce the structural weight while improving the structural strength.
[0036] like Figure 4 As shown, in some embodiments, the second bracket 32 includes a second housing 321 and a second partition rib 322 disposed in the second housing 321, and the second partition rib 322 divides the cavity in the second housing 321 into multiple cavities. In this way, the structural setting of the second bracket 32 can reduce the structural weight while improving the structural strength.
[0037] In some embodiments, the third bracket 33 includes a third shell and a third partition rib disposed in the third shell, and the third partition rib divides the cavity in the third shell into multiple cavities. In this way, the structural arrangement of the third bracket 33 can reduce the structural weight while improving the structural strength.
[0038] like Figure 1 As shown, in some embodiments, the first bracket 31 is spaced apart from the side of the second bracket 32 away from the connecting bracket 2. This is beneficial to improving the steering modal frequency.
[0039] like Figure 1 As shown, in some embodiments, the first bracket 31 and the second bracket 32 are both perpendicular to the pipe beam 1, so that the installation structure of the first bracket 31 and the second bracket 32 is stable.
[0040] like Figure 4 As shown, in some embodiments, the cross section of the pipe beam 1 is polygonal, and the connecting bracket 2, the first bracket 31 and the second bracket 32 are all fitted and fixed to the surface of the pipe beam 1. This makes the contact area between the pipe beam 1 and the connecting bracket 2, the first bracket 31 and the second bracket 32 larger, the connection strength is better, and the weld reliability is higher.
[0041] Based on the above embodiments, the beneficial effects of the automobile steering column bracket assembly are:
[0042] The connecting bracket 2, the frame 3 and the fourth bracket 4 are all made into a closed cavity structure with a complex cross-section, so that it has good rigidity and light weight; the closed and connected triangular structure formed by the first bracket 31, the second bracket 32, the third bracket 33 and the pipe beam 1 improves the steering mode, so that the lateral and vertical modes of the steering system reach above 45HZ, avoiding the frequency of idling charging and avoiding steering wheel jitter caused by resonance.
[0043] The connecting bracket 2, the frame 3 and the fourth bracket 4 are made of aluminum alloy with low density. When the same stiffness and steering mode targets are achieved, the mass can be one-third lower than that of the iron bracket, which helps to reduce the weight of the electric vehicle and achieve the weight reduction target. The connection between the connecting bracket 2, the first bracket 31 and the second bracket 32 and the pipe beam 1 is a fitted design, with a large contact area at the welding point, regular welds and high weld reliability. The overall structural design is flexible, takes up less space in the cockpit, and can be compatible with larger modules such as head-up displays to meet the cockpit layout requirements.
[0044] The connecting bracket 2, the frame 3 and the fourth bracket 4 are formed by extrusion aluminum molds, which makes the cost low and the extrusion aluminum molds have good compatibility, thus reducing the development cost. The extrusion aluminum section design is flexible, and can achieve lightweight through CAE topology optimization, etc. on the basis of meeting the design requirements of components and improving the steering wheel mode of the dashboard bracket, so as to meet the goal of reducing the weight of the whole vehicle.
[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.
Claims
1. An automobile steering column bracket assembly having a first direction, a second direction and a third direction intersecting in pairs, characterized in that: include: A tube beam arranged along the first direction; A connecting bracket connected to the pipe beam along the third direction; as well as Two groups of frames are correspondingly arranged on both sides of the connecting bracket along the first direction, the frames include a first bracket, a second bracket and a third bracket, the first bracket is installed on the pipe beam along the second direction, the second bracket is installed on the pipe beam along the third direction, a first end of the third bracket is connected to the first bracket, and a second end of the third bracket is connected to the second bracket; Wherein, two groups of second brackets of the frame are connected to two ends of the connecting bracket, and a first mounting position is formed between the two second brackets, and the first mounting position is configured to mount the lower part of the steering column.
2. The automotive steering column bracket assembly according to claim 1, characterized in that: Two fourth brackets are included, the fourth brackets are installed on the tube beam and away from the second bracket, a second mounting position is formed between the two fourth brackets, and the second mounting position is configured to mount the upper part of the steering column.
3. The automotive steering column bracket assembly according to claim 2, characterized in that: The fourth bracket includes a fourth shell and a fourth partition rib disposed in the fourth shell, and the fourth partition rib divides the cavity in the fourth shell into multiple cavities.
4. The automotive steering column bracket assembly according to claim 2, characterized in that: The pipe beam, the connecting bracket, the frame and the fourth bracket are all made of aluminum alloy.
5. The automotive steering column bracket assembly according to claim 1, characterized in that: The first bracket includes a first shell and a plurality of partitions arranged in the first shell. The first shell is opened at both sides along the first direction, and the partitions divide the first shell into a plurality of spaces.
6. The automotive steering column bracket assembly according to claim 1, characterized in that: The second bracket includes a second shell and a second partition rib disposed in the second shell, wherein the second partition rib divides the cavity in the second shell into a plurality of cavities.
7. The automotive steering column bracket assembly according to claim 1, characterized in that: The third bracket includes a third shell and a third partition rib disposed in the third shell, and the third partition rib divides the cavity in the third shell into multiple cavities.
8. The automotive steering column bracket assembly according to claim 1, characterized in that: The first bracket is spaced apart from a side of the second bracket away from the connecting bracket.
9. The automotive steering column bracket assembly according to claim 1, characterized in that: The first bracket and the second bracket are both perpendicular to the tube beam.
10. The automotive steering column bracket assembly according to claim 1, characterized in that: The cross section of the tube beam is polygonal, and the connecting bracket, the first bracket and the second bracket are all fitted and fixed to the surface of the tube beam.