Engine suspension mounting structure and vehicle

Abstract

The utility model provides an engine suspension mounting structure and a vehicle. The engine suspension mounting structure comprises a front longitudinal beam outer plate, a front longitudinal beam inner plate, an engine suspension front supporting plate and an engine suspension rear mounting frame. The front longitudinal beam outer plate and the front longitudinal beam inner plate jointly form a main cavity, the engine suspension front supporting plate and the engine suspension rear mounting frame are both located in the main cavity, and a plurality of suspension sleeves arranged in the Y direction are mounted on the engine suspension front supporting plate and the engine suspension rear mounting frame. The front longitudinal beam outer plate and the front longitudinal beam inner plate form the main cavity, acting force of an engine on suspension is received through the suspension threaded sleeve, energy is absorbed through the main cavity after the sleeve receives the acting force, and the force transmission mode is simpler and smoother.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to an engine suspension mounting structure and a vehicle. Background Art

[0002] As living standards improve, consumers' demands for automotive quality are becoming increasingly stringent. The front engine compartment connection structure, as a component that indirectly contacts the driver and passengers, is gaining increasing attention for its safety and quietness. Furthermore, as a crucial component of the overall vehicle body structure, the high-efficiency and superior structure not only provides high rigidity, enhancing durability, NVH, VD, and crash safety performance, but also improves the vehicle's bending and torsional stiffness, modal properties, and NTF / VTF (Noise Transfer Function / Vibration Transfer Function).

[0003] The traditional engine suspension mounting structure has an insufficiently smooth force transmission channel. The inner and outer plates form a U-shaped cavity, and there is no connection in the middle of the sleeve, resulting in no stable force transmission channel. This affects the vehicle's NTF / collision performance, and the number of parts is relatively large.

[0004] Currently, the following are the main problems with the engine suspension mounting structure: 1. The front longitudinal beam assembly has a weak skeleton structure that cannot effectively isolate the transmission of engine-excited vibration noise into the cab. 2. When the left and right wheels of a car are subjected to loads in different directions while driving, the body will undergo torsional deformation due to twisting. When the torsional rigidity is insufficient, the body will undergo significant torsional deformation under the action of external forces. After repeated loading, local weak points may suffer fatigue damage, which may in turn cause friction and abnormal noise between the various components of the vehicle. 3. To meet the noise transmission / collision requirements of the entire vehicle, the joint design of the engine suspension mounting structure of current models is complex, costly, and ineffective.

[0005] Therefore, it is necessary to provide an improved engine suspension mounting structure and vehicle to solve the above problems. Utility Model Content

[0006] The present application provides an engine suspension mounting structure and a vehicle with a simple and smooth force transmission method.

[0007] The present application provides an engine suspension mounting structure, comprising a front longitudinal beam outer plate, a front longitudinal beam inner plate, an engine suspension front support plate, and an engine suspension rear mounting frame; the front longitudinal beam outer plate and the front longitudinal beam inner plate together form a main cavity, the engine suspension front support plate and the engine suspension rear mounting frame are both located in the main cavity, and a plurality of suspension sleeves arranged along the Y direction are installed on the engine suspension front support plate and the engine suspension rear mounting frame.

[0008] Furthermore, the engine suspension front support plate includes a first trough body and an upper flange and a lower flange respectively located on the upper and lower sides of the first trough body; the opening of the first trough body faces the front longitudinal beam outer plate, and the upper flange and the lower flange are respectively connected to the front longitudinal beam outer plate; the upper side wall and the lower side wall of the first trough body are respectively provided with a sleeve connection part; the two suspension sleeves are respectively welded to the sleeve connection part.

[0009] Furthermore, the bottom wall of the first trough body is connected to the inner plate of the front longitudinal beam; the engine suspension front support plate and the front longitudinal beam outer plate form a first sub-cavity; the engine suspension front support plate, the front longitudinal beam outer plate and the front longitudinal beam inner plate together form a second sub-cavity, and the second sub-cavity is located above the first sub-cavity.

[0010] Furthermore, the engine suspension rear mounting frame includes a rear upper mounting frame and a rear lower mounting frame, and the rear upper mounting frame and the rear lower mounting frame are fixed to the front longitudinal beam outer plate; the rear upper mounting frame includes a side plate welded to the front longitudinal beam outer plate and a support plate extending from the side plate along the Y direction, and a sleeve support portion is formed on the support plate; the rear lower mounting frame includes a fixing plate fixed to the support plate, a main body plate and a side plate extending from the fixing plate along the X direction, and a sleeve support portion is formed on the main body plate; the two suspension sleeves are respectively welded to the two sleeve support portions.

[0011] Furthermore, it includes: a longitudinal beam reinforcement plate, which is located in the main cavity; the engine suspension front support plate is located above the longitudinal beam reinforcement plate; the longitudinal beam reinforcement plate includes a second trough body and an upper flange and a lower flange respectively located on the upper and lower sides of the second trough body; the opening of the second trough body faces the front longitudinal beam outer plate, and the upper flange and the lower flange are respectively connected to the front longitudinal beam outer plate; the bottom wall of the second trough body is located in the middle of the main cavity; the longitudinal beam reinforcement plate and the front longitudinal beam outer plate form a third sub-cavity.

[0012] Furthermore, the upper flange of the longitudinal beam reinforcement plate is connected to the lower flange of the engine suspension front support plate, and the longitudinal beam reinforcement plate, the engine suspension front support plate and the front longitudinal beam inner plate together form a fourth sub-cavity; the fourth sub-cavity is located below the first sub-cavity.

[0013] Furthermore, a connection between the upper flange of the longitudinal beam reinforcement plate and the lower flange of the engine suspension front support plate is in contact with the front longitudinal beam outer plate.

[0014] Furthermore, the front longitudinal beam inner plate is provided with through-holes corresponding to the plurality of suspension sleeves, and the suspension sleeves and the through-holes are matched with bolts to install the engine suspension.

[0015] Furthermore, the front longitudinal beam outer panel includes a first cavity and an upper flange and a lower flange respectively located on the upper and lower sides of the first cavity; the front longitudinal beam inner panel includes a second cavity and an upper flange and a lower flange respectively located on the upper and lower sides of the second cavity; the first cavity and the second cavity together form the main cavity; the upper flange and the lower flange of the front longitudinal beam outer panel are respectively connected to the upper flange and the lower flange of the front longitudinal beam inner panel.

[0016] Furthermore, the upper and lower connection points of the front longitudinal beam outer plate and the front longitudinal beam inner plate are both close to the middle of the main cavity in the Y direction.

[0017] The present application also provides a vehicle comprising the above-mentioned engine suspension mounting structure.

[0018] The front longitudinal beam outer plate and the front longitudinal beam inner plate of the present application form a main cavity. The force exerted by the engine on the suspension is received by the suspension threaded sleeve, and then absorbed by the sleeve through the main cavity; the force transmission method is simpler and smoother, and the durability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 2 is a perspective view of an engine mount installation structure according to an exemplary embodiment of the present application.

[0020] Figure 2 yes Figure 1 The engine mount installation structure is shown in a perspective view without the front longitudinal member inner plate.

[0021] Figure 3 yes Figure 1 A partial enlarged view of the engine mount installation structure is shown.

[0022] Figure 4 yes Figure 3 The diagram shows the engine mount installation structure and the assembled engine mount.

[0023] Figure 5 yes Figure 2 The engine mount installation structure shown is an enlarged partial view without the front longitudinal beam inner plate.

[0024] Figure 6 yes Figure 5 A stereoscopic view from another perspective of the partially enlarged view shown.

[0025] Figure 7 yes Figure 4 A cross-sectional view of the engine mount mounting structure and the engine mount after assembly is shown.

[0026] Figure 8 yes Figure 4 A perspective view of the engine mount is shown.

[0027] Description of Figure Numbers:

[0028] 10. Front longitudinal beam outer plate; 11. First cavity; 12. Upper flange; 13. Lower flange; 20. Front longitudinal beam inner plate; 21. Second cavity; 22. Upper flange; 23. Lower flange; 24. Perforation; 30. Longitudinal beam reinforcement plate; 31. Second channel; 311. Bottom wall; 32. Upper flange; 33. Lower flange; 40. Engine suspension front support plate; 41. First channel; 411. Bottom wall; 412. Upper side wall; 413. Lower side wall; 42. Upper flange; 43. Lower flange; 44 , sleeve connecting part; 45, sleeve connecting part; 50, engine suspension rear mounting bracket; 51, rear upper mounting bracket; 511, side plate; 512, support plate; 513, sleeve supporting part; 524, sleeve supporting part; 52, rear lower mounting bracket; 521, fixing plate; 522, main body plate; 523, side plate; 60, main cavity; 61, first sub-cavity; 62, second sub-cavity; 63, third sub-cavity; 64, fourth sub-cavity; 70, suspension sleeve; 80, bolt; 90, engine suspension. DETAILED DESCRIPTION

[0029] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0030] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0031] See also Figures 1 to 4 As shown, the present application provides an engine mount installation structure, comprising a front longitudinal beam outer panel 10, a front longitudinal beam inner panel 20, a longitudinal beam reinforcement plate 30, an engine mount front support plate 40, and an engine mount rear mounting bracket 50. The front longitudinal beam outer panel 10 and the front longitudinal beam inner panel 20 together form a main cavity 60, within which the longitudinal beam reinforcement plate 30, the engine mount front support plate 40, and the engine mount rear mounting bracket 50 are all located. Multiple mount sleeves 70, arranged along the Y direction, are mounted on the engine mount front support plate 40 and the engine mount rear mounting bracket 50.

[0032] The front longitudinal beam outer panel 10 includes a first cavity 11 and upper and lower flanges 12 and 13 located on the upper and lower sides of the first cavity 11, respectively. The front longitudinal beam inner panel 20 includes a second cavity 21 and upper and lower flanges 22 and 23 located on the upper and lower sides of the second cavity 21, respectively. The first cavity 11 and the second cavity 21 together form the main cavity 60. The upper and lower flanges 12 and 13 of the front longitudinal beam outer panel 10 are connected to the upper and lower flanges 22 and 23 of the front longitudinal beam inner panel 20, respectively.

[0033] The upper and lower connections between the front longitudinal beam outer panel 10 and the front longitudinal beam inner panel 20, as well as the connections between the upper flange 12 and the upper flange 22, and the lower flange 13 and the lower flange 23 are all close to the middle of the main cavity 60 in the Y direction. The force transmission path is clear and the overlap is reasonable, which can effectively disperse and transmit force.

[0034] The first cavity 11 , the second cavity 21 and the main cavity 60 are substantially rectangular. The upper flange 12 and the lower flange 13 of the front longitudinal beam outer panel 10 are welded and fixed to the upper flange 22 and the lower flange 23 of the front longitudinal beam inner panel 20 , respectively.

[0035] According to different embodiments of the present application, the upper flange 12 and the upper flange 22, as well as the lower flange 13 and the lower flange 23 can also be fixed simultaneously by bolt threading, rivet riveting or snap fastening.

[0036] In the embodiment of the present application, four suspension sleeves 70 are provided on the front longitudinal beam inner plate 20. Figures 3 to 5 As shown, the front longitudinal beam inner plate 20 is provided with through holes 24 corresponding to the four suspension sleeves 70 , and the suspension sleeves 70 and the through holes 24 cooperate with bolts 80 to install the engine mount 90 .

[0037] Please also see Figure 7 As shown, the longitudinal beam reinforcement plate 30 includes a second channel 31 and upper and lower flanges 32 and 33 located on the upper and lower sides of the second channel 31. The second channel 31 opens toward the front longitudinal beam outer panel 10, and the upper and lower flanges 32 and 33 are respectively connected to the front longitudinal beam outer panel 10. Compared to traditional structures that are attached to the inner or outer panels, the longitudinal beam reinforcement plate 30 encloses a rectangular cavity.

[0038] The engine suspension front support plate 40 is located above the longitudinal beam reinforcement plate 30. It includes a first channel 41 and upper and lower flanges 42 and 43 located on the upper and lower sides of the first channel 41. The opening of the first channel 41 faces the front longitudinal beam outer panel 10, and the upper and lower flanges 42 and 43 are connected to the front longitudinal beam outer panel 10. The upper and lower sidewalls 412 and 413 of the first channel 41 are respectively provided with sleeve connecting portions 44 and 45. Two suspension sleeves 70 are welded to the sleeve connecting portions 44 and 45, respectively.

[0039] The first and second troughs 41 and 31 both have U-shaped cross-sections. The bottom wall 311 of the second trough 31 is located in the center of the main cavity 60, while the bottom wall 411 of the first trough 41 is connected to the front longitudinal beam inner panel 20. The engine mount front support plate 40 and the front longitudinal beam outer panel 10 form a first subcavity 61.

[0040] The engine mount front support plate 40, the front longitudinal beam outer panel 10, and the front longitudinal beam inner panel 20 together form a second sub-cavity 62, which is located above the first sub-cavity 61. The longitudinal beam reinforcement plate 30 and the front longitudinal beam outer panel 10 form a third sub-cavity 63. The longitudinal beam reinforcement plate 30, the engine mount front support plate 40, and the front longitudinal beam inner panel 20 together form a fourth sub-cavity 64. The fourth sub-cavity 64 is located below the first sub-cavity 61.

[0041] The upper flange 32 of the longitudinal beam reinforcement plate 30 is connected to the lower flange 43 of the engine mount front support plate 40. The longitudinal beam reinforcement plate 30 and the engine mount front support plate 40 are fixed to form an S-shaped plate. This S-shaped plate is welded to the front longitudinal beam outer panel 10 and the front longitudinal beam inner panel 20, dividing the main cavity 60 into multiple sub-cavities. The connection between the upper flange 32 of the longitudinal beam reinforcement plate 30 and the lower flange 43 of the engine mount front support plate 40 abuts the front longitudinal beam outer panel 10. The second sub-cavity 62, the first sub-cavity 61, the fourth sub-cavity 64, and the third sub-cavity 63 are arranged in sequence along the vertical direction of the main cavity 60, forming a sub-cavity pattern within the main cavity 60.

[0042] See also Figure 5 and Figure 6 As shown, the engine suspension rear mounting bracket 50 includes a rear upper mounting bracket 51 and a rear lower mounting bracket 52, which are secured to the front longitudinal beam outer panel 10. The rear upper mounting bracket 51 includes a side panel 511 welded to the front longitudinal beam outer panel 10 and a support plate 512 extending from the side panel 511 in the Y direction. A sleeve support portion 513 is formed on the support plate 512. A suspension sleeve 70 is disposed on the sleeve support portion 513.

[0043] The rear lower mounting frame 52 includes a fixing plate 521 fixed to the support plate 512, a main plate 522 extending from the fixing plate 521 in the X-direction, and side plates 523 fixed to the longitudinal beam reinforcement plate 30. A sleeve support portion 524 is formed on the main plate 522. A suspension sleeve 70 is provided on the sleeve support portion 524. The two suspension sleeves 70 are welded to the two sleeve supports 513 and 524, respectively.

[0044] See also Figure 7 and Figure 8As shown, the engine's force on the engine mount 90 is transmitted to the mount bushing 70. The mount bushing 70 then receives the force and transmits it to the front longitudinal beam outer panel 10 and the front longitudinal beam inner panel 20 via the longitudinal beam reinforcement plate 30. This results in a simpler and smoother force transmission method, resulting in improved durability. The main cavity 60 formed by the front longitudinal beam outer panel 10 and the front longitudinal beam inner panel 20 absorbs energy, while various sub-cavities are formed within it, effectively distributing and transmitting the force, thereby absorbing energy and noise. This alleviates engine vibration and noise issues, reduces resonance between the engine and the vehicle body, and improves engine stability during driving.

[0045] Force is transmitted through four suspension bushings 70, facilitating absorption of external energy, improving force transmission efficiency and dynamic stiffness at this location. The use of multiple suspension bushings 70 to form a single-piece longitudinal beam effectively disperses force in all directions, enhancing overall fatigue life. Bolts 80 transmit force in the Y direction, aligning with the engine's placement, further facilitating absorption of Y-direction energy during vehicle motion.

[0046] The suspension sleeve 70, bolts 80, and engine mount 90 can be assembled directly, achieving high structural precision and eliminating the need for additional workstations in subsequent final assembly processes. The mounting structure of the suspension sleeve 70 prevents the bolts 80 or engine mount 90 from breaking during a high head-on collision, allowing one side of the engine assembly to fall to the ground. This prevents the engine assembly from intruding into the cockpit and causing injury to occupants, thereby better protecting the safety of those in the passenger compartment.

[0047] The present application also provides a vehicle comprising the aforementioned engine suspension mounting structure.

[0048] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. An engine suspension mounting structure, characterized in that: It includes a front longitudinal beam outer plate, a front longitudinal beam inner plate, an engine suspension front support plate and an engine suspension rear mounting frame; the front longitudinal beam outer plate and the front longitudinal beam inner plate together form a main cavity, the engine suspension front support plate and the engine suspension rear mounting frame are both located in the main cavity, and a plurality of suspension sleeves arranged along the Y direction are installed on the engine suspension front support plate and the engine suspension rear mounting frame.

2. The engine mounting structure according to claim 1, characterized in that: The engine suspension front support plate includes a first trough body and an upper flange and a lower flange respectively located on the upper and lower sides of the first trough body; the opening of the first trough body faces the front longitudinal beam outer plate, and the upper flange and the lower flange are respectively connected to the front longitudinal beam outer plate; the upper side wall and the lower side wall of the first trough body are respectively provided with a sleeve connecting part; the two suspension sleeves are respectively welded to the sleeve connecting parts.

3. The engine mounting structure according to claim 2, characterized in that: The bottom wall of the first trough body is connected to the inner plate of the front longitudinal beam; the engine suspension front support plate and the front longitudinal beam outer plate form a first sub-cavity; the engine suspension front support plate, the front longitudinal beam outer plate and the front longitudinal beam inner plate together form a second sub-cavity, and the second sub-cavity is located above the first sub-cavity.

4. The engine mounting structure according to claim 1, characterized in that: The engine suspension rear mounting frame includes a rear upper mounting frame and a rear lower mounting frame, and the rear upper mounting frame and the rear lower mounting frame are fixed to the front longitudinal beam outer plate; the rear upper mounting frame includes a side plate welded to the front longitudinal beam outer plate and a support plate extending from the side plate along the Y direction, and a sleeve support portion is formed on the support plate; the rear lower mounting frame includes a fixing plate fixed to the support plate, a main body plate and a side plate extending from the fixing plate along the X direction, and a sleeve support portion is formed on the main body plate; the two suspension sleeves are respectively welded to the two sleeve support portions.

5. The engine mounting structure according to claim 3, characterized in that: include: A longitudinal beam reinforcement plate, wherein the longitudinal beam reinforcement plate is located in the main cavity; the engine suspension front support plate is located above the longitudinal beam reinforcement plate; the longitudinal beam reinforcement plate includes a second trough body and an upper flange and a lower flange respectively located on the upper and lower sides of the second trough body; the opening of the second trough body faces the front longitudinal beam outer plate, and the upper flange and the lower flange are respectively connected to the front longitudinal beam outer plate; the bottom wall of the second trough body is located in the middle of the main cavity; the longitudinal beam reinforcement plate and the front longitudinal beam outer plate form a third sub-cavity.

6. The engine mounting structure according to claim 5, characterized in that: The upper flange of the longitudinal beam reinforcement plate is connected to the lower flange of the engine suspension front support plate, and the longitudinal beam reinforcement plate, the engine suspension front support plate and the front longitudinal beam inner plate together form a fourth sub-cavity; the fourth sub-cavity is located below the first sub-cavity.

7. The engine mounting structure according to claim 6, characterized in that: The connection between the upper flange of the longitudinal beam reinforcement plate and the lower flange of the engine suspension front support plate is in contact with the front longitudinal beam outer plate.

8. The engine mounting structure according to claim 1, characterized in that: The front longitudinal beam inner plate is provided with through holes corresponding to the plurality of suspension sleeves, and the suspension sleeves and the through holes are matched with bolts to install the engine suspension.

9. The engine mounting structure according to claim 1, characterized in that: The front longitudinal beam outer panel includes a first cavity and an upper flange and a lower flange respectively located on the upper and lower sides of the first cavity; the front longitudinal beam inner panel includes a second cavity and an upper flange and a lower flange respectively located on the upper and lower sides of the second cavity; the first cavity and the second cavity together form the main cavity; the upper flange and the lower flange of the front longitudinal beam outer panel are respectively connected to the upper flange and the lower flange of the front longitudinal beam inner panel.

10. The engine mounting structure according to claim 9, characterized in that: The upper and lower connection points of the front longitudinal beam outer plate and the front longitudinal beam inner plate are both close to the middle of the main cavity in the Y direction.

11. A vehicle, characterized in that: The engine suspension mounting structure comprises the engine suspension mounting structure according to any one of claims 1 to 10.

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