Power assembly suspension system support and vehicle

Abstract

The utility model belongs to the technical field of automobile parts, and provides a power assembly suspension system support and a vehicle, the power assembly suspension system support comprises a bottom plate used for installing the suspension system support on a power assembly cylinder body, the bottom plate is of a triangular structure, the bottom plate is provided with a first side edge, a second side edge and a third side edge, the first side edge is a straight edge, and the second side edge is a straight edge; the second side edge is provided with an inclined section and a bent section to form an L-shaped structure, and the third side edge is of an irregular structure; the first supporting plate is bent along the first side edge and extends towards the intersection of the first side edge and the third side edge; the second supporting plate is bent along the third side edge and extends towards the intersection of the first side edge and the third side edge; the damping cylinder is connected with the first supporting plate and the second supporting plate, and the extending ends of the first supporting plate and the second supporting plate are of arc-shaped structures matched with the damping cylinder; the problems that in the prior art, a suspension system support is low in modal frequency, resonance is likely to be generated, and noise generated by a power assembly is large are solved, the light weight of a suspension system is improved, the stability of supporting the suspension system is enhanced, the modal frequency of the suspension system support is improved, and the suspension system support is suitable for being used in the power assembly. The energy transmitted into the vehicle by the power assembly is reduced, the resonance is reduced, the noise is reduced, and the driving comfort of the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to a powertrain suspension system bracket and a vehicle. Background Art

[0002] For fuel vehicles, the powertrain is one of the most important sources of excitation, and has a great impact on the NVH performance of the vehicle in various working conditions. The powertrain is connected to the vehicle body through the suspension system, so the most important function of the suspension system is to attenuate the vibration of the powertrain to the greatest extent. The suspension system mainly uses the suspension system bracket as an elastic element connecting the powertrain and the vehicle body. The suspension system bracket can effectively reduce the vibration transmitted from the powertrain to the vehicle body and improve ride comfort. At the same time, it can reduce the vibration and impact transmitted from the vehicle body to the powertrain under harsh road conditions to ensure the normal operation of the powertrain.

[0003] The existing light truck models are driven by front-engine and rear-wheel drive, and the powertrain is arranged longitudinally. At this time, due to the limitations of the space system, the suspension system brackets are often relatively weak and the modal frequency is relatively low, which is easy to resonate within the normal speed range of the powertrain, resulting in loud noise generated by the powertrain, affecting the driving comfort of the vehicle. Utility Model Content

[0004] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a powertrain suspension system bracket and a vehicle, which are used to solve the problem in the prior art that the modal frequency of the suspension system bracket is low, which is easy to resonate and causes the noise generated by the powertrain to be relatively large.

[0005] To achieve the above objectives and other related objectives, the present application provides a powertrain suspension system bracket, comprising:

[0006] A bottom plate, used for mounting the suspension system bracket on the powertrain cylinder body, the bottom plate is in a triangular structure, the bottom plate has a first side, a second side and a third side, the first side is a straight side, the second side has an inclined section and a bent section to form an L-shaped structure, and the third side is an irregular structure;

[0007] A first support plate, bent along the first side and extending toward the intersection of the first side and the third side;

[0008] a second supporting plate, bent along the third side and extending toward the intersection of the first side and the third side;

[0009] A shock-absorbing cylinder is connected to the first support plate and the second support plate, and the extending ends of the first support plate and the second support plate are arc-shaped structures matching the shock-absorbing cylinder.

[0010] Optionally, the first support plate has a first inclined portion, a first bent portion, and a second inclined portion, and there is a smooth transition between the first inclined portion, the first bent portion, and the second inclined portion, and both the first inclined portion and the second inclined portion are inclined upward.

[0011] Optionally, the second support plate has a recessed portion, a second bent portion and a third inclined portion, the recessed portion, the second bent portion and the third inclined portion have a smooth transition, and the third inclined portion is inclined upward.

[0012] Optionally, a first through hole is formed on both the second inclined portion and the third inclined portion.

[0013] Optionally, a connecting plate is further provided between the second inclined portion and the third inclined portion, and a second through hole is formed on the connecting plate.

[0014] Optionally, the first support plate is further provided with reinforcing ribs at the first bending portion.

[0015] Optionally, a plurality of positioning holes for installation are provided on the bottom plate.

[0016] Optionally, the base plate, the first support plate, the second support plate and the shock-absorbing cylinder are all made of structural steel plate Q235.

[0017] Optionally, there is a distance between the first support plate and the second support plate.

[0018] Based on the same utility model concept, the present application also provides a vehicle, comprising a powertrain suspension system bracket as described above.

[0019] In the powertrain suspension system bracket provided in the present application, the suspension system bracket is installed on the powertrain. Through the structural optimization of the base plate, not only the lightweight of the suspension system is improved, but also the stability of the suspension system support is enhanced. The topological optimization of the first support plate, the first and second support plates and the shock absorber tube is used to improve the modal frequency of the suspension system bracket, reduce the energy transmitted from the powertrain to the vehicle, reduce the resonance generation, reduce the noise, and improve the driving comfort of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a suspension system bracket from a first perspective shown in an embodiment of the present application;

[0021] Figure 2 This is a schematic structural diagram of a suspension system bracket from a first perspective shown in an embodiment of the present application;

[0022] Figure 3 This is a comparison diagram of low-frequency noise in a vehicle before and after optimization of a suspension system bracket according to an embodiment of the present application;

[0023] Figure 4 This is a finite element modal analysis diagram of a suspension system bracket according to an embodiment of the present application;

[0024] Figure 5 This is a finite element strength analysis diagram of a suspension system bracket according to an embodiment of the present application.

[0025] Part Number Description

[0026] 1-bottom plate; 2-second support plate; 3-third side; 4-recessed portion; 5-second bent portion; 6-connecting plate; 7-second through hole; 8-third inclined portion; 9-second inclined portion; 10-shock-absorbing cylinder; 11-first through hole; 12-first bent portion; 13-first support plate; 14-first side; 15-positioning hole; 16-first inclined portion; 17-reinforcement rib; 18-second side. DETAILED DESCRIPTION

[0027] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0028] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this application, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this application without affecting the effects that can be produced by this application and the purposes that can be achieved. At the same time, the terms such as "front", "back", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the implementation of this application. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of this application without substantial changes in the technical content.

[0029] See also Figures 1 to 5 , the present application exemplarily provides a powertrain suspension system bracket, comprising:

[0030] The bottom plate 1 is used to install the suspension system bracket on the powertrain cylinder body. The bottom plate 1 is a triangular structure. The bottom plate 1 has a first side 14, a second side 18 and a third side 3. The first side 14 is a straight side. The second side 18 has an inclined section and a bent section to form an L-shaped structure. The third side 3 is an irregular structure.

[0031] The first support plate 13 is bent along the first side edge 14 and extends toward the intersection of the first side edge 14 and the third side edge 3;

[0032] The second support plate 2 is bent along the third side 3 and extends toward the intersection of the first side 14 and the third side 3;

[0033] The shock-absorbing cylinder 10 is connected to the first support plate 13 and the second support plate 2 , and the extending ends of the first support plate 13 and the second support plate 2 are arc-shaped structures matching the shock-absorbing cylinder 10 .

[0034] The suspension system bracket is installed on the powertrain. Through the structural optimization of the base plate 1, not only the lightweight of the suspension system is improved, but also the stability of the suspension system support is enhanced. The topological optimization of the first support plate 13, the first and second support plates and the shock absorber tube 10 is used to improve the modal frequency of the suspension system bracket, reduce the energy transmitted from the powertrain to the vehicle, reduce the resonance generation, reduce noise, and improve the driving comfort of the vehicle.

[0035] It should be noted that, in this embodiment, please refer to Figure 3 , Figure 3 This is a comparison chart of the low-frequency noise in the car before and after the optimization of the suspension system bracket. After adopting the optimized design of the suspension system bracket, the modal frequency of the suspension system bracket is increased from 280Hz to 360Hz, and the idling hum in the car is reduced by 21.5dB. It is clearly perceived that the noise generated in the car due to resonance has basically disappeared, which improves the driving comfort of the vehicle.

[0036] In this embodiment, the first support plate 13 has a first inclined portion 16, a first bent portion 12 and a second inclined portion 9. There is a smooth transition between the first inclined portion 16, the first bent portion 12 and the second inclined portion 9. The first inclined portion 16 and the second inclined portion 9 are both inclined upward, which can better adapt to the formation of surrounding parts such as the powertrain while ensuring strength requirements, and is easy to install.

[0037] Specifically, the second support plate 2 has a recessed portion 4, a second bent portion 5 and a third inclined portion 8. There is a smooth transition between the recessed portion 4, the second bent portion 5 and the third inclined portion 8. The third inclined portion 8 is inclined upward, which can better adapt to the formation of surrounding parts such as the powertrain while ensuring strength requirements, and is easy to install.

[0038] Understandably, see Figure 4 and Figure 5 , Figure 4 This is the finite element modal analysis diagram of the suspension system bracket. Figure 5 This is a finite element strength analysis diagram of the suspension system bracket. The first support plate 13 and the second support plate 2 form a structure that bears force in coordination, thereby improving the strength and bending moment resistance of the suspension system bracket, reducing the stress at the bottom plate 1, the first support plate 13 and the second support plate 2, and increasing the modal frequency, thereby reducing the vibration and impact transmitted to the vehicle body by the powertrain and reducing the noise generated by resonance.

[0039] In detail, the second inclined portion 9 and the third inclined portion 8 are both provided with a first through hole 11. On the premise of ensuring the strength of the first support plate 13 and the second support plate 2, the first through hole 11 is used to enhance the lightweight design of the suspension system bracket and reduce the production cost.

[0040] In this embodiment, there is a spacing between the first support plate 13 and the second support plate 2, and a connecting plate 6 is further provided between the second inclined portion 9 and the third inclined portion 8. A second through hole 7 is provided on the connecting plate 6. The first support plate 13 and the second support plate 2 are connected by the connecting plate 6, thereby enhancing the stability of the structure. The second through hole 7 can be used as an avoidance hole, thereby improving the applicability of assembly.

[0041] In this embodiment, the first support plate 13 is further provided with a reinforcing rib 17 at the first bending portion 12 , and a triangular structure is formed between the reinforcing rib 17 and the first support plate 13 , which is opposite to the bending portion of the second side 18 , thereby enhancing the stability of the first support plate 13 structure.

[0042] Specifically, a plurality of positioning holes 15 for installation are provided on the bottom plate 1 , and the suspension system bracket is positioned and installed through the positioning holes 15 .

[0043] In this embodiment, the base plate 1, the first support plate 13, the second support plate 2 and the shock-absorbing cylinder 10 are all made of structural steel plate Q235, which meets the mechanical property requirements. Q235 steel is carbon structural steel.

[0044] In this embodiment, a vehicle is further provided, including: the above-mentioned powertrain suspension system bracket.

[0045] In summary, in the powertrain suspension system bracket provided in the present application, the suspension system bracket is installed on the powertrain, and through the structural optimization of the base plate 1, not only the lightweight of the suspension system is improved, but also the stability of the suspension system support is enhanced. The topological optimization of the first support plate 13, the first and second support plates and the shock absorber tube 10 is used to improve the modal frequency of the suspension system bracket, reduce the energy transmitted from the powertrain to the vehicle, reduce the resonance generation, reduce the noise, and improve the driving comfort of the vehicle.

[0046] The above embodiments are merely illustrative of the principles and effects of the present application, and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A powertrain suspension system bracket, characterized in that: include: A bottom plate, used for mounting the suspension system bracket on the powertrain cylinder body, the bottom plate is in a triangular structure, the bottom plate has a first side, a second side and a third side, the first side is a straight side, the second side has an inclined section and a bent section to form an L-shaped structure, and the third side is an irregular structure; A first support plate, bent along the first side and extending toward the intersection of the first side and the third side; a second supporting plate, bent along the third side and extending toward the intersection of the first side and the third side; A shock-absorbing cylinder is connected to the first support plate and the second support plate, and the extending ends of the first support plate and the second support plate are arc-shaped structures matching the shock-absorbing cylinder.

2. The powertrain suspension system bracket according to claim 1, characterized in that: The first support plate has a first inclined portion, a first bent portion, and a second inclined portion. The first inclined portion, the first bent portion, and the second inclined portion are smoothly transitioned, and both the first inclined portion and the second inclined portion are inclined upward.

3. The powertrain suspension system bracket according to claim 2, characterized in that: The second support plate has a recessed portion, a second bent portion and a third inclined portion. The recessed portion, the second bent portion and the third inclined portion are smoothly transitioned, and the third inclined portion is inclined upward.

4. The powertrain suspension system bracket according to claim 3, characterized in that: The second inclined portion and the third inclined portion are both provided with a first through hole.

5. The powertrain suspension system bracket according to claim 3, characterized in that: A connecting plate is further provided between the second inclined portion and the third inclined portion, and a second through hole is provided on the connecting plate.

6. The powertrain suspension system bracket according to claim 3, characterized in that: The first support plate is further provided with a reinforcing rib at the first bending portion.

7. The powertrain suspension system bracket according to claim 1, characterized in that: The bottom plate is provided with a plurality of positioning holes for installation.

8. The powertrain suspension system bracket according to claim 1, characterized in that: The base plate, the first support plate, the second support plate and the shock-absorbing cylinder are all made of structural steel plate Q235.

9. The powertrain suspension system bracket according to claim 1, characterized in that: There is a distance between the first supporting plate and the second supporting plate.

10. A vehicle, characterized in that: It comprises a powertrain suspension system bracket as claimed in any one of claims 1 to 9.

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