Vehicle front cabin assembly

Abstract

The utility model discloses a vehicle front cabin assembly which comprises a left shock absorption tower, a right shock absorption tower and a stabilizer bar assembly, the left shock absorption tower is connected to the top of a left side front longitudinal beam, and the right shock absorption tower is connected to the top of a right side front longitudinal beam; the stabilizer bar assembly comprises a stabilizer bar I, a stabilizer bar II and a stabilizer bar III; the stabilizer bar I is parallel to the transverse direction to connect the left damping tower and the right damping tower, the stabilizer bar II is used for connecting the left damping tower and the windshield lower cross beam, and the stabilizer bar III is used for connecting the right damping tower and the windshield lower cross beam; the projections of the stabilizer bar I, the stabilizer bar II and the stabilizer bar III in the height direction are triangular; the rigidity and strength of the vehicle body front cabin structure can be improved, and the collision requirement and the lightweight requirement are met.

Description

Technical Field

[0001] The utility model relates to the field of vehicle parts, and particularly to a vehicle front engine compartment assembly. Background Art

[0002] With the development of new energy vehicles, there are high requirements for the safety, lightweight performance and collision safety indicators of the whole vehicle, which is convenient for increasing the cruising range and driving safety. When designing the vehicle body structure in the later stage, referring to the finite element analysis results, it is necessary to continuously carry out topological optimization design on the vehicle body structure; in the conventional vehicle body front engine compartment structure, the front anti-collision beam is bolted to the left and right front longitudinal beams; to meet the requirements of vehicle body collision regulations, it is necessary to arrange reinforcing plates to increase the strength, resulting in an increase in vehicle body weight, which does not meet the lightweight requirements of the vehicle body, and the increase in vehicle body weight will lead to a reduction in the cruising range.

[0003] Therefore, to solve the above problems, a vehicle front engine compartment assembly is needed, which can improve the rigidity and strength of the vehicle body front engine compartment structure and meet the collision requirements and lightweight requirements. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to overcome the defects in the prior art and provide a vehicle front engine compartment assembly, which can improve the rigidity and strength of the vehicle body front engine compartment structure and meet the collision requirements and lightweight requirements.

[0005] The vehicle front engine compartment assembly of the utility model includes a front engine compartment skeleton, the front engine compartment skeleton includes a windshield lower cross beam, a left A-pillar lower functional plate, a front bulkhead lower cross beam and a right A-pillar lower functional plate, and the windshield lower cross beam, the left A-pillar lower functional plate, the front bulkhead lower cross beam and the right A-pillar lower functional plate enclose a rectangular closed structure perpendicular to the longitudinal direction near the driver's cab; the front engine compartment skeleton also includes a left front longitudinal beam connected to the left front end of the front bulkhead lower cross beam and a right front longitudinal beam connected to the right front end of the front bulkhead lower cross beam;

[0006] It also includes a left shock tower, a right shock tower and a stabilizer bar assembly, the left shock tower is connected to the top of the left front longitudinal beam, and the right shock tower is connected to the top of the right front longitudinal beam;

[0007] The stabilizer bar assembly includes a stabilizer bar I, a stabilizer bar II and a stabilizer bar III;

[0008] The stabilizer bar I connects the left shock tower and the right shock tower in parallel in the transverse direction, the stabilizer bar II connects the left shock tower and the windshield lower cross beam, and the stabilizer bar III connects the right shock tower and the windshield lower cross beam;

[0009] The projections of the stabilizer bar I, the stabilizer bar II and the stabilizer bar III in the height direction are triangular.

[0010] Further, the middle part of the stabilizer bar I bulges upward. The left transverse end of the stabilizer bar I is connected to the front longitudinal end of the left shock tower, and the right transverse end of the stabilizer bar I is connected to the front longitudinal end of the right shock tower.

[0011] Further, the front engine compartment frame further includes an intermediate connecting beam, and the intermediate connecting beam connects the middle part in the transverse direction of the windshield lower cross beam and the middle part in the transverse direction of the front wall lower cross beam;

[0012] The stabilizer bar II is connected to the windshield lower cross beam through the intermediate connecting beam, and the stabilizer bar III is connected to the windshield lower cross beam through the intermediate connecting beam. The connection position I of the stabilizer bar II on the intermediate connecting beam and the connection position II of the stabilizer bar III on the intermediate connecting beam are close to each other.

[0013] Further, the intermediate connecting beam is parallel to the height direction, and the connection position I and the connection position II are close to each other at the top of the intermediate connecting beam.

[0014] Further, the stabilizer bar II is connected to the top surface of the left shock tower through bolt I, and the stabilizer bar II is connected to the front end face of the intermediate connecting beam through bolt II. The central axis of bolt I and the central axis of bolt II are perpendicular;

[0015] The stabilizer bar III is connected to the top surface of the right shock tower through bolt III, and the stabilizer bar III is connected to the front end face of the intermediate connecting beam through bolt IV. The central axis of bolt III and the central axis of bolt IV are perpendicular.

[0016] Further, it further includes a left functional arm and a right functional arm. The longitudinal end of the left functional arm is connected to the lower functional plate of the left A-pillar. The longitudinal head end of the left functional arm is located on the left side in the transverse direction of the left shock tower, and the left transverse end of the left shock tower is connected to the left functional arm; the longitudinal end of the right functional arm is connected to the lower functional plate of the right A-pillar. The longitudinal head end of the right functional arm is located on the right side in the transverse direction of the right shock tower, and the right transverse end of the right shock tower is connected to the right functional arm.

[0017] Further, it further includes a water tank installation cross beam, a left functional frame and a right functional frame. The left transverse end of the water tank installation cross beam is connected to the left front longitudinal beam through the left functional frame, and the right transverse end of the water tank installation cross beam is connected to the right front longitudinal beam through the right functional frame.

[0018] Further, it further includes a left front headlight installation beam and a right front headlight installation beam. The left front headlight installation beam connects the left transverse end of the water tank installation cross beam and the left shock tower, and the right front headlight installation beam connects the right transverse end of the water tank installation cross beam and the right shock tower.

[0019] Further, the left front headlight installation beam is inclined obliquely to the left from front to back, and the right front headlight installation beam is inclined obliquely to the right from front to back.

[0020] Furthermore, the water tank mounting crossbeam is located at the bottom of the stabilizer bar I in the height direction.

[0021] The beneficial effects of the present utility model are as follows: A vehicle front engine compartment assembly disclosed by the present utility model forms a stable triangular area through the interconnection of the stabilizer bar I, the stabilizer bar II, and the stabilizer bar III, and this triangular area is closer to the driver's cab. Due to the stability of the triangle, the rigidity and strength of the front engine compartment can be increased; it is beneficial to improve the overall NVH performance of the vehicle and the driving stability; it is beneficial to the transmission of force during a collision to ensure driving safety; and the use of structural reinforcement members can improve the body rigidity and strength without the need to reinforce other sheet metal structures of the vehicle, reducing the body weight and meeting the lightweight requirements. Description of the Drawings

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0023] Figure 1 is the structural schematic diagram of the present utility model;

[0024] Figure 2 is the front view structural schematic diagram of the present utility model;

[0025] Figure 3 is the top view structural schematic diagram of the present utility model;

[0026] Figure 4 is the left side view structural schematic diagram of the present utility model;

[0027] Figure 5 is the right side view structural schematic diagram of the present utility model. Detailed Embodiments

[0028] Figure 1 is the structural schematic diagram of the present utility model. As shown in the figure, the horizontal direction is the vehicle width direction, the left and right are the left and right in the driving direction, the longitudinal direction is the vehicle length direction, the direction from the rear of the vehicle to the front of the vehicle in the longitudinal direction is the front, and vice versa is the rear, which will not be elaborated here; the vehicle front engine compartment assembly in this embodiment includes a front engine compartment skeleton, and the front engine compartment skeleton includes a windshield lower crossbeam 1, a left A-pillar lower functional plate, a front bulkhead lower crossbeam 3, and a right A-pillar lower functional plate 2. The windshield lower crossbeam 1, the left A-pillar lower functional plate, the front bulkhead lower crossbeam 3, and the right A-pillar lower functional plate 2 are close to the driver's cab and enclose a rectangular closed structure perpendicular to the longitudinal direction; this structure is generally the same as the front engine compartment skeleton structure of a general vehicle and is subject to actual layout, which will not be elaborated here;

[0029] The front engine compartment skeleton further includes a left front longitudinal beam 4 connected to the left front end of the front bulkhead lower crossbeam 3 and a right front longitudinal beam 5 connected to the right front end of the front bulkhead lower crossbeam 3. Generally, a front anti-collision beam is assembled at the front ends of the left front longitudinal beam 4 and the right front longitudinal beam 5;

[0030] It further includes a left shock tower 6, a right shock tower 7 and a stabilizer bar assembly. The left shock tower 6 is connected to the top of the left front longitudinal beam 4, and the right shock tower 7 is connected to the top of the right front longitudinal beam 5;

[0031] The stabilizer bar assembly includes a stabilizer bar I 8, a stabilizer bar II 9 and a stabilizer bar III 10;

[0032] The stabilizer bar I 8 connects the left shock tower 6 and the right shock tower 7 in parallel in the transverse direction, preventing the vehicle body from rolling too much when cornering quickly and maintaining the balance of the vehicle body. The stabilizer bar II 9 connects the left shock tower 6 and the lower windshield crossbeam 1, and the stabilizer bar III 10 connects the right shock tower 7 and the lower windshield crossbeam 1;

[0033] The projections of the stabilizer bar I 8, the stabilizer bar II 9 and the stabilizer bar III 10 in the height direction form a triangle.

[0034] The stabilizer bar I 8, the stabilizer bar II 9 and the stabilizer bar III 10 are connected to each other to form a stable triangular area, and this triangular area is closer to the cockpit. Due to the stability of the triangle, the rigidity of the front engine compartment can be increased; it is beneficial to improve the NVH performance of the whole vehicle, beneficial to improving driving stability; beneficial to the transmission of force during collision to ensure driving safety; and the use of structural reinforcements can improve the body rigidity without strengthening other sheet metal structures of the vehicle, reducing the body weight and meeting the lightweight requirements.

[0035] In this embodiment, the middle part of the stabilizer bar I 8 bulges upward. The left transverse end of the stabilizer bar I 8 is connected to the front longitudinal end of the left shock tower 6, and the right transverse end of the stabilizer bar I 8 is connected to the front longitudinal end of the right shock tower 7. The stabilizer bar I 8 has a structure with a higher middle and lower ends, and is smoothly bent at the high-low transition position. In the longitudinal direction, the left and right transverse ends of the stabilizer bar I 8 are respectively connected to the front longitudinal ends of the left shock tower 6 and the right shock tower 7, and the stabilizer bar I 8 is generally located in the longitudinal middle of the front engine compartment, ensuring the structural strength of the front end of the vehicle.

[0036] In this embodiment, the front engine compartment frame further includes an intermediate connecting beam 11. The intermediate connecting beam 11 connects the transverse middle of the lower windshield crossbeam 1 and the transverse middle of the lower front panel crossbeam 3; the stabilizer bar II 9 is connected to the lower windshield crossbeam 1 through the intermediate connecting beam 11, and the stabilizer bar III 10 is connected to the lower windshield crossbeam 1 through the intermediate connecting beam 11. The connection position I of the stabilizer bar II 9 on the intermediate connecting beam 11 is close to the connection position II of the stabilizer bar III 10 on the intermediate connecting beam 11.

[0037] More specifically, the middle connecting beam 11 is parallel to the height direction and connects the transverse middle parts of the windshield lower cross beam 1 and the front wall lower cross beam 3, so that the rectangular closed structure formed by enclosing the windshield lower cross beam 1, the left A-pillar lower functional plate, the front wall lower cross beam 3 and the right A-pillar lower functional plate 2 is divided into two symmetric regions on the left and right; the connecting position I and the connecting position II are close to the top of the middle connecting beam 11, so that the force transmission system can take into account the entire front end of the vehicle, and the force is transmitted not only on the upper part of the engine compartment, but also to the vehicle chassis and the middle section of the vehicle. The integrity of the front engine compartment is good, the structural strength is better, and there is no need to rely on reinforcing plates, and the vehicle body lightweight is more obvious.

[0038] In this embodiment, the stabilizer bar II 9 is connected to the top surface of the left shock tower 6 through bolt I, and the stabilizer bar II 9 is connected to the front end surface of the middle connecting beam 11 through bolt II, and the central axis of bolt I and the central axis of bolt II are perpendicular; the stabilizer bar III 10 is connected to the top surface of the right shock tower 7 through bolt III, and the stabilizer bar III 10 is connected to the front end surface of the middle connecting beam 11 through bolt IV, and the central axis of bolt III and the central axis of bolt IV are perpendicular. The stabilizer bar II 9 and the stabilizer bar III 10 are respectively assembled on the vehicle through mutually perpendicular bolts, so that the self-assembly strength of the stabilizer bar II 9 and the stabilizer bar III 10 on the vehicle is guaranteed, the probability of structural failure due to damage is reduced, and the safety of the front end of the vehicle is improved.

[0039] In this embodiment, it further includes a left functional arm 12 and a right functional arm 13. The longitudinal end of the left functional arm 12 is connected to the left A-pillar lower functional plate, the longitudinal head of the left functional arm 12 is located on the left side of the left shock tower 6 in the transverse direction, and the left end of the left shock tower 6 in the transverse direction is connected to the left functional arm 12; the longitudinal end of the right functional arm 13 is connected to the right A-pillar lower functional plate 2, the longitudinal head of the right functional arm 13 is located on the right side of the right shock tower 7 in the transverse direction, and the right end of the right shock tower 7 in the transverse direction is connected to the right functional arm 13. As shown in the figure, the left functional arm 12 covers the left side of the left shock tower 6 in the transverse direction, and the left shock tower 6 is also connected to the left front longitudinal beam 4, the front wall lower cross beam 3, the left A-pillar lower functional plate and the left functional arm 12 through the left covering member to form an integral body, so that the structural strength of the left shock tower 6 is ensured; the right functional arm 13 covers the right side of the right shock tower 7 in the transverse direction, and the right shock tower 7 is also connected to the right front longitudinal beam 5, the front wall lower cross beam 3, the right A-pillar lower functional plate 2 and the right functional arm 13 through the right covering member to form an integral body, so that the structural strength of the right shock tower 7 is ensured; and the stabilizer bar assembly further connects the above structures to form an integral body, and forms an isosceles triangle with the apex angle facing the middle section of the vehicle body, which can ensure the stability of the front engine compartment structure layout and improve the safety factor of the front end of the vehicle.

[0040] In this embodiment, it further includes a water tank mounting cross beam 14, a left functional frame 15 and a right functional frame 16. The left transverse end of the water tank mounting cross beam 14 is connected to the left front longitudinal beam 4 through the left functional frame 15, and the right transverse end of the water tank mounting cross beam 14 is connected to the right front longitudinal beam 5 through the right functional frame 16. The longitudinal projection formed by the connection of the water tank mounting cross beam 14, the left functional frame 15 and the right functional frame 16 is in an "n" shape, further connecting the left front longitudinal beam 4 and the right front longitudinal beam 5 to form an integral body, improving the structural compactness and structural rigidity, meeting the collision requirements. The water tank mounting cross beam 14 is located at the top of the front anti-collision beam.

[0041] In this embodiment, it further includes a left front headlight mounting beam 17 and a right front headlight mounting beam 18. The left front headlight mounting beam 17 connects the left transverse end of the water tank mounting cross beam 14 and the left shock tower 6, and the right front headlight mounting beam 18 connects the right transverse end of the water tank mounting cross beam 14 and the right shock tower 7. Further, the left front headlight mounting beam 17 is inclined obliquely to the left from front to back, and the right front headlight mounting beam 18 is inclined obliquely to the right from front to back. The water tank mounting cross beam 14 is located at the bottom of the stabilizer bar I 8 in the height direction. The front stabilizer bar, the left / right front headlight mounting cross beams, and the water tank upper cross beam are designed into a trapezoidal structure. This structure is designed to be weakened. When the whole vehicle collides, it collapses and deforms to absorb energy, reducing the intrusion amount of components such as the engine compressor into the engine compartment and ensuring driving safety. The windshield lower cross beam 1, the stabilizer bar I 8, the water tank upper cross beam, and the anti-collision beam are arranged with gradually decreasing heights from back to front, which improves the structural stability of the front engine compartment of the vehicle and ensures the collision requirements.

[0042] In this embodiment, the stabilizer bar I 8 is assembled on the left shock tower 6 through bolt V, and the stabilizer bar II 9 is assembled on the right shock tower 7 through bolt VI. The central axes of bolt V and bolt VI are parallel to the height direction. And the two bolts V for assembling the stabilizer bar I 8 on the left shock tower 6 are arranged side by side in the transverse direction. The two bolts V also fix the left front headlight mounting beam 17 on the left shock tower 6. The two bolts VI for assembling the stabilizer bar I 8 on the right shock tower 7 are arranged side by side in the transverse direction. The two bolts VI also fix the right front headlight mounting beam 18 on the right shock tower 7. The stability of the integral force transmission skeleton formed at the front end of the vehicle is better, and the structural strength is further guaranteed.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A vehicle front cabin assembly, comprising a front cabin frame, the front cabin frame comprising a windshield lower cross beam, a left A-pillar lower functional panel, a front wall lower cross beam and a right A-pillar lower functional panel, the windshield lower cross beam, the left A-pillar lower functional panel, the front wall lower cross beam and the right A-pillar lower functional panel are close to the cockpit to form a rectangular closed structure perpendicular to the longitudinal direction; the front cabin frame also comprises a left front longitudinal beam connected to the left front end of the front wall lower cross beam and a right front longitudinal beam connected to the right front end of the front wall lower cross beam; Features: Also included are a left shock tower, a right shock tower and a stabilizer bar assembly, wherein the left shock tower is connected to the top of the left front longitudinal beam, and the right shock tower is connected to the top of the right front longitudinal beam; The stabilizer bar assembly includes stabilizer bar I, stabilizer bar II and stabilizer bar III; The stabilizer bar I connects the left shock absorbing tower and the right shock absorbing tower in parallel with the horizontal direction, the stabilizer bar II connects the left shock absorbing tower and the lower cross beam of the windshield, and the stabilizer bar III connects the right shock absorbing tower and the lower cross beam of the windshield; The projections of the stabilizer bar I, the stabilizer bar II and the stabilizer bar III in the height direction are in the shape of a triangle.

2. The vehicle front cabin assembly according to claim 1, characterized in that: The middle part of the stabilizer bar I protrudes upward, the transverse left end of the stabilizer bar I is connected to the longitudinal front end of the left shock-absorbing tower, and the transverse right end of the stabilizer bar I is connected to the longitudinal front end of the right shock-absorbing tower.

3. The vehicle front cabin assembly according to claim 1, characterized in that: The front nacelle frame further includes a middle connecting beam, which connects the transverse middle portion of the windshield lower cross beam and the transverse middle portion of the front enclosure lower cross beam; The stabilizer bar II is connected to the lower cross beam of the windshield through the middle connecting beam, and the stabilizer bar III is connected to the lower cross beam of the windshield through the middle connecting beam. The connection position I of the stabilizer bar II on the middle connecting beam is close to the connection position II of the stabilizer bar III on the middle connecting beam.

4. The vehicle front cabin assembly according to claim 3, characterized in that: The middle connecting beam is parallel to the height direction, and the connecting position I and the connecting position II are close to each other at the top of the middle connecting beam.

5. The vehicle front cabin assembly according to claim 3, characterized in that: The stabilizer bar II is connected to the top surface of the left shock tower by bolt I, and the stabilizer bar II is connected to the front end surface of the middle connecting beam by bolt II, and the central axis of the bolt I is perpendicular to the central axis of the bolt II; The stabilizer bar III is connected to the top surface of the right shock tower via bolt III, and the stabilizer bar III is connected to the front end surface of the middle connecting beam via bolt IV, and the central axis of the bolt III is perpendicular to the central axis of the bolt IV.

6. The vehicle front cabin assembly according to claim 1, characterized in that: It also includes a left functional arm and a right functional arm, wherein the longitudinal end of the left functional arm is connected to the functional plate under the left A-pillar, the longitudinal head end of the left functional arm is located on the lateral left side of the left shock-absorbing tower, and the lateral left end of the left shock-absorbing tower is connected to the left functional arm; the longitudinal end of the right functional arm is connected to the functional plate under the right A-pillar, the longitudinal head end of the right functional arm is located on the lateral right side of the right shock-absorbing tower, and the lateral right end of the right shock-absorbing tower is connected to the right functional arm.

7. The vehicle front cabin assembly according to claim 1, characterized in that: It also includes a water tank mounting crossbeam, a left functional frame and a right functional frame. The transverse left end of the water tank mounting crossbeam is connected to the left front longitudinal beam through the left functional frame, and the transverse right end of the water tank mounting crossbeam is connected to the right front longitudinal beam through the right functional frame.

8. The vehicle front cabin assembly according to claim 7, characterized in that: It also includes a left headlight mounting beam and a right headlight mounting beam, wherein the left headlight mounting beam connects the lateral left end of the water tank mounting cross beam and the left shock absorber tower, and the right headlight mounting beam connects the lateral right end of the water tank mounting cross beam and the right shock absorber tower.

9. The vehicle front cabin assembly according to claim 8, characterized in that: The left front headlight mounting beam is inclined obliquely to the left from front to back, and the right front headlight mounting beam is inclined obliquely to the right from front to back.

10. The vehicle front cabin assembly according to claim 7, characterized in that: The water tank mounting cross beam is located at the bottom of the stabilizer bar I in the height direction.

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