Cabin assembly, lower vehicle body assembly and vehicle

Abstract

The utility model discloses a cabin assembly, a lower vehicle body assembly and a vehicle. The cabin assembly is used for the vehicle and comprises a front longitudinal beam, a first reinforcing cross beam, a second reinforcing cross beam and an auxiliary longitudinal beam. The front longitudinal beams extend in the front-back direction of the vehicle and are arranged in the left-right direction of the vehicle in a spaced mode. The first reinforcing cross beam extends in the left-right direction of the vehicle, and the two ends of the first reinforcing cross beam in the length direction are connected with the two front longitudinal beams correspondingly. The second reinforcing cross beams extend in the left-right direction of the vehicle, the two second reinforcing cross beams are arranged in the front-back direction of the vehicle in a spaced mode, and the two ends of the second reinforcing cross beams in the length direction are connected with the two front longitudinal beams correspondingly; the auxiliary longitudinal beams extend in the front-back direction of the vehicle, the auxiliary longitudinal beams are arranged in the left-right direction of the vehicle at intervals, and the two ends of the auxiliary longitudinal beams in the length direction are connected with the two second reinforcing cross beams correspondingly. According to the cabin assembly, the rigidity of the cabin assembly in the left-right direction is high.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of vehicles, and in particular to a cabin assembly, a lower vehicle body assembly and a vehicle. Background Art

[0002] In the prior art, the lateral stiffness of the cabin is insufficient, which may cause the cabin longitudinal beam to become laterally unstable during a small offset collision. The vehicle body cannot deflect, and most of the collision energy is directly transmitted to the vehicle body and squeezes the front panel, thereby causing the front panel to tear, which cannot meet the durability and reliability requirements of the cabin. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a cabin assembly, wherein the cabin assembly has a high rigidity in the left-right direction.

[0004] The utility model also provides a lower vehicle body assembly, which includes the above-mentioned cabin assembly.

[0005] The utility model also provides a vehicle, which comprises the above-mentioned lower vehicle body assembly.

[0006] According to the cabin assembly of the embodiment of the utility model, the cabin assembly is used for a vehicle and includes: a front longitudinal beam, a first reinforcing cross beam, a second reinforcing cross beam and an auxiliary longitudinal beam. There are two front longitudinal beams, the front longitudinal beams extend along the front-to-back direction of the vehicle and the two front longitudinal beams are arranged at intervals along the left-right direction of the vehicle; the first reinforcing cross beam extends along the left-to-right direction of the vehicle, and the two ends of the first reinforcing cross beam in the length direction are respectively connected to the two front longitudinal beams; there are two second reinforcing cross beams, the second reinforcing cross beams extend along the left-to-right direction of the vehicle, the two second reinforcing cross beams are arranged at intervals along the front-to-back direction of the vehicle, and the two ends of the second reinforcing cross beam in the length direction are respectively connected to the two front longitudinal beams; there are multiple auxiliary longitudinal beams, the auxiliary longitudinal beams extend along the front-to-back direction of the vehicle, the multiple auxiliary longitudinal beams are arranged at intervals along the left-to-right direction of the vehicle, and the two ends of the auxiliary longitudinal beam in the length direction are respectively connected to the two second reinforcing cross beams.

[0007] According to the cabin assembly of the embodiment of the utility model, the cabin assembly forms a relatively stable force transmission structure by connecting the first reinforcing crossbeam to the front longitudinal beam, and connecting multiple auxiliary longitudinal beams and two second reinforcing crossbeams to form a relatively stable structure and then connecting them to the front longitudinal beam. When the front longitudinal beam on one side of the left and right directions of the vehicle is subjected to force, the two second reinforcing crossbeams can both transmit the force received by the front longitudinal beam on one side of the left and right directions of the vehicle to the front longitudinal beam on the other side of the left and right directions of the vehicle, and the multiple auxiliary longitudinal beams can transmit the impact force received by the two second reinforcing crossbeams, so that the external force received by the vehicle in the left and right directions can be transmitted and gradually absorbed between the two front longitudinal beams, the first reinforcing crossbeam, the two second reinforcing crossbeams and the multiple auxiliary longitudinal beams, thereby improving the left and right stiffness of the cabin assembly.

[0008] In some embodiments of the utility model, the cabin assembly further includes a tower seat, a tower seat cross beam, a windshield cross beam and a windshield cross beam connecting beam. There are two tower seats, and the two tower seats are connected to the two front longitudinal beams respectively; the tower seat cross beam extends in the left-right direction of the vehicle, and the two ends of the tower seat cross beam in the length direction are connected to the two tower seats respectively, and along the front-back direction of the vehicle, the tower seat cross beam is located at the rear side of the second reinforcing cross beam and is spaced apart; the windshield cross beam extends in the left-right direction of the vehicle, and the two ends of the windshield cross beam in the length direction are connected to the two front longitudinal beams respectively, and along the front-back direction of the vehicle, the windshield cross beam is located at the rear side of the tower seat cross beam and is spaced apart; the windshield cross beam connecting beam is two spaced apart along the left-right direction of the vehicle, one end of the windshield cross beam connecting beam in the length direction is connected to the windshield cross beam, and the other end of the windshield cross beam connecting beam in the length direction is connected to the tower seat cross beam, and along the rear-to-front direction of the vehicle, the two windshield cross beam connecting beams extend in a direction away from each other.

[0009] In some embodiments of the present invention, along the direction from top to bottom of the vehicle, the windshield cross beam, the tower base cross beam, the second reinforcement cross beam and the first reinforcement cross beam are arranged in sequence.

[0010] According to the lower body assembly of the embodiment of the utility model, it includes a threshold assembly, a floor assembly and the above-mentioned cabin assembly, the threshold assemblies are two, the threshold assemblies extend along the front-to-back direction of the vehicle, and the two threshold assemblies are arranged along the left-to-right direction of the vehicle; the floor assembly includes a front floor front cross beam and a plurality of connecting longitudinal beams, the front floor front cross beam extends along the left-to-right direction of the vehicle, and the two ends of the front floor front cross beam in the length direction are respectively connected to the two threshold assemblies; the cabin assembly includes a cabin lower cross beam, the cabin lower cross beam extends along the left-to-right direction of the vehicle, and the two ends of the cabin lower cross beam in the length direction are respectively connected to the two threshold assemblies, along the front-to-back direction of the vehicle, the cabin lower cross beam is located at the rear side of the second reinforcing cross beam and is spaced apart, the front floor front cross beam is located at the rear side of the cabin lower cross beam and is spaced apart, and the two ends of the connecting longitudinal beam in the length direction are respectively connected to the front floor front cross beam and the cabin lower cross beam.

[0011] According to the lower body assembly of the embodiment of the utility model, by arranging a threshold assembly, a floor assembly and a cabin assembly in the lower body assembly, a plurality of connecting longitudinal beams connect the lower cross beam of the cabin and the front cross beam of the front floor, so that a plurality of force transmission channels can be provided for the cabin assembly and the floor assembly, and the collision force and energy can be effectively dispersed during the collision of the vehicle. The external force received in the left and right directions of the vehicle can be transmitted and gradually absorbed between the two front longitudinal beams, the first reinforcing cross beam, the two second reinforcing cross beams and the plurality of auxiliary longitudinal beams, and the impact force suffered by the cabin assembly can be transmitted to the front cross beam of the front floor, and the front cross beam of the front floor can transmit the impact force to the threshold assemblies on the left and right sides of the vehicle, so that the external force received in the left and right directions of the vehicle can be transmitted and gradually absorbed between the cabin assembly, the threshold assembly and the floor assembly, and the left and right stiffness of the vehicle can be improved.

[0012] In some embodiments of the present invention, the connecting longitudinal beam extends along the front-rear direction of the vehicle, and a plurality of the connecting longitudinal beams are symmetrically arranged about a center line of the vehicle extending along the front-rear direction.

[0013] In some embodiments of the utility model, the floor assembly also includes a central channel, which extends along the front and rear directions of the vehicle, and the two ends of the central channel in the length direction are connected to the front cross beam of the front floor and the lower cross beam of the cabin. Along the left and right directions of the vehicle, the central channel is located in the middle position of the front cross beam of the front floor.

[0014] In some embodiments of the utility model, the cabin lower cross beam has a plurality of cavities, each of which extends along the length direction of the cabin lower cross beam; and / or the front floor front cross beam has a plurality of cavities, each of which extends along the length direction of the front floor front cross beam; and / or the door sill assembly has a plurality of cavities, each of which extends along the length direction of the door sill assembly.

[0015] In some embodiments of the utility model, the floor assembly further includes a front floor rear cross beam, a rear floor front cross beam and a rear floor rear cross beam, the front floor rear cross beam, the rear floor front cross beam and the rear floor rear cross beam extend in the left-right direction of the vehicle, and along the front-to-back direction of the vehicle, the front floor rear cross beam is located at the rear side of the front floor front cross beam and is spaced apart, the rear floor front cross beam is located at the rear side of the front floor rear cross beam and is spaced apart, and the rear floor rear cross beam is located at the rear side of the rear floor front cross beam and is spaced apart, and the two ends of the front floor rear cross beam, the rear floor front cross beam and the rear floor rear cross beam in the length direction are respectively connected to two door sill assemblies.

[0016] In some embodiments of the present invention, the spacing between any two adjacent ones of the cabin lower cross beam, the front floor front cross beam, the front floor rear cross beam, the rear floor front cross beam and the rear floor rear cross beam is 0-400 mm.

[0017] A vehicle according to an embodiment of the utility model includes the above-mentioned lower vehicle body assembly.

[0018] According to the vehicle of the embodiment of the utility model, a threshold assembly, a floor assembly and a cabin assembly are arranged in the lower body assembly, and multiple connecting longitudinal beams connect the lower cross beam of the cabin and the front cross beam of the front floor, so that multiple force transmission channels can be provided for the cabin assembly and the floor assembly, and the collision force and energy can be effectively dispersed during the collision of the vehicle. The external force received in the left and right directions of the vehicle can be transmitted and gradually absorbed between the two front longitudinal beams, the first reinforcing cross beam, the two second reinforcing cross beams and the multiple auxiliary longitudinal beams, and the impact force suffered by the cabin assembly can be transmitted to the front cross beam of the front floor, and the front cross beam of the front floor can transmit the impact force to the threshold assemblies on the left and right sides of the vehicle, so that the external force received in the left and right directions of the vehicle can be transmitted and gradually absorbed between the cabin assembly, the threshold assembly and the floor assembly, and the left and right stiffness of the vehicle can be improved.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a top view of a partial structure of a lower vehicle body assembly according to an embodiment of the utility model;

[0022] Figure 2 is a three-dimensional diagram of a cabin assembly according to an embodiment of the utility model;

[0023] Figure 3 is a top view of a lower vehicle body assembly according to an embodiment of the utility model;

[0024] Figure 4 is a schematic diagram of a cross section of a lower cross beam of a cabin of a lower vehicle body assembly according to an embodiment of the utility model;

[0025] Figure 5 is a schematic diagram of a cross section of a front floor front cross beam of a lower vehicle body assembly according to an embodiment of the utility model;

[0026] Figure 6 is a schematic diagram of a cross section of a front floor rear cross beam of a lower vehicle body assembly according to an embodiment of the utility model;

[0027] Figure 7 It is a schematic diagram of a cross section of a door sill assembly of a lower vehicle body assembly according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] 100, lower body assembly;

[0030] 1. Cabin assembly;

[0031] 11. front longitudinal beam; 12. first reinforced cross beam; 13. second reinforced cross beam; 14. auxiliary longitudinal beam; 15. tower base; 151. shock absorber; 16. tower base cross beam; 17. windshield cross beam; 18. windshield cross beam connecting beam; 19. cabin lower cross beam;

[0032] 2. Door sill assembly; 21. Cavity;

[0033] 3. Floor assembly; 31. Front floor front crossbeam; 32. Connecting longitudinal beam; 33. Middle channel; 34. Front floor rear crossbeam; 35. Rear floor front crossbeam; 36. Rear floor rear crossbeam;

[0034] 4. Front anti-collision beam; 41. Longitudinal beam connecting beam; 42. Side beam; 43. Torque box; 44. Front panel cross beam; 45. Rear floor cross beam; 46. Spare tire cross beam; 47. Rear anti-collision beam; 48. Rear longitudinal beam. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Reference below Figure 1-Figure 3 A cabin assembly 1 according to an embodiment of the present invention is described.

[0039] like Figure 1 As shown, the cabin assembly 1 according to the embodiment of the utility model includes a front longitudinal beam 11 , a first reinforcing cross beam 12 , a second reinforcing cross beam 13 and an auxiliary longitudinal beam 14 .

[0040] The cabin assembly 1 is used for a vehicle, such as Figure 1 and Figure 2 As shown, there are two front longitudinal beams 11, and the front longitudinal beams 11 are arranged along the front and rear directions of the vehicle (such as Figure 1 The two front longitudinal beams 11 extend in the left and right directions of the vehicle (as shown in the front and rear directions) and the ... Figure 1 The two front longitudinal beams 11 are arranged at intervals in the left and right directions as shown in the figure. The two front longitudinal beams 11 are arranged at the bottom of the front engine compartment of the vehicle, which can provide support for other components in the cabin in the left and right directions of the vehicle, making the structure of the cabin assembly 1 more reliable.

[0041] like Figure 1 and Figure 2As shown, the first reinforcing cross beam 12 extends along the left-right direction of the vehicle, and the two ends of the first reinforcing cross beam 12 in the length direction are respectively connected to the two front longitudinal beams 11. When the front longitudinal beam 11 on one side of the left-right direction of the vehicle is subjected to force, the first reinforcing cross beam 12 can transfer the force exerted on the front longitudinal beam 11 on one side of the left-right direction of the vehicle to the front longitudinal beam 11 on the other side of the left-right direction of the vehicle, thereby improving the left-right stiffness of the cabin assembly 1.

[0042] There are two second reinforcing cross beams 13, which extend in the left-right direction of the vehicle. The two second reinforcing cross beams 13 are spaced apart in the front-rear direction of the vehicle. Figure 1 The two ends of the left and right directions (as shown) are respectively connected to the two front longitudinal beams 11. When the front longitudinal beam 11 on one side in the left and right directions of the vehicle is subjected to force, the two second reinforcing cross beams 13 can transfer the force exerted on the front longitudinal beam 11 on one side in the left and right directions of the vehicle to the front longitudinal beam 11 on the other side in the left and right directions of the vehicle, thereby improving the left and right stiffness of the cabin assembly 1.

[0043] like Figure 1 and Figure 2 As shown, there are multiple auxiliary longitudinal beams 14, and the auxiliary longitudinal beams 14 extend along the front-rear direction of the vehicle. The multiple auxiliary longitudinal beams 14 are arranged at intervals along the left-right direction of the vehicle. The length direction of the auxiliary longitudinal beams 14 (such as Figure 1 The two ends of the front longitudinal beam 12 (shown in the front and rear direction) are respectively connected to the two second reinforcing cross beams 13, and the multiple auxiliary longitudinal beams 14 can increase the force transmission path between the two second reinforcing cross beams 13. When the front longitudinal beam 11 on one side in the left and right directions of the vehicle is subjected to force, the two second reinforcing cross beams 13 can both transmit the force received by the front longitudinal beam 11 on one side in the left and right directions of the vehicle to the front longitudinal beam 11 on the other side in the left and right directions of the vehicle, and the multiple auxiliary longitudinal beams 14 can transmit the impact force received by the two second reinforcing cross beams 13, so that the external force received in the left and right directions of the vehicle can be transmitted and gradually absorbed between the two front longitudinal beams 11, the first reinforcing cross beam 12, the two second reinforcing cross beams 13 and the multiple auxiliary longitudinal beams 14, and the rigidity of the cabin assembly 1 in the left and right directions can be improved. For example, the auxiliary longitudinal beams 14 can be two, three, four or five arranged at intervals along the left and right directions of the vehicle.

[0044] In this embodiment, if Figure 1 and Figure 2 As shown, there are two auxiliary longitudinal beams 14 , and the two auxiliary longitudinal beams 14 and the two second reinforcing cross beams 13 can form a relatively stable “well”-like structure, which can increase the reliability of the force transmission structure of the cabin assembly 1 .

[0045] According to the cabin assembly 1 of the embodiment of the utility model, by connecting the first reinforcing cross beam 12 to the front longitudinal beam 11, and connecting multiple auxiliary longitudinal beams 14 and two second reinforcing cross beams 13 to form a relatively stable structure and then connecting to the front longitudinal beam 11, the cabin assembly 1 forms a relatively stable force transmission structure. When the front longitudinal beam 11 on one side in the left and right directions of the vehicle is subjected to force, the two second reinforcing cross beams 13 can both transmit the force exerted on the front longitudinal beam 11 on one side in the left and right directions of the vehicle to the front longitudinal beam 11 on the other side in the left and right directions of the vehicle, and the multiple auxiliary longitudinal beams 14 can transmit the impact force exerted on the two second reinforcing cross beams 13, so that the external force exerted on the left and right directions of the vehicle can be transmitted and gradually absorbed between the two front longitudinal beams 11, the first reinforcing cross beam 12, the two second reinforcing cross beams 13 and the multiple auxiliary longitudinal beams 14, thereby improving the left and right stiffness of the cabin assembly 1.

[0046] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the cabin assembly 1 also includes a tower seat 15, a tower seat cross beam 16, a windshield cross beam 17 and a windshield cross beam connecting beam 18. There are two tower seats 15, which are the top seats of the shock absorber 151 of the front wheels of the vehicle, and can play the role of installing, fixing and supporting the shock absorber 151. The two tower seats 15 are respectively connected to the two front longitudinal beams 11, which can increase the reliability of the position of the tower seats 15, and can transmit the vibration of the shock absorber 151 to the front longitudinal beam 11, and transmit and gradually absorb it between the first reinforcing cross beam 12, the two second reinforcing cross beams 13 and the multiple auxiliary longitudinal beams 14 through the front longitudinal beam 11, which can improve the vibration reduction effect of the vehicle.

[0047] like Figure 1 and Figure 2 As shown, the tower base cross beam 16 extends in the left-right direction of the vehicle, and the length direction of the tower base cross beam 16 (such as Figure 1 The two ends of the tower base 15 (in the left and right directions as shown) are respectively connected to the two tower bases 15, and along the front-to-rear direction of the vehicle, the tower base cross beam 16 is located at the rear side of the second reinforcing cross beam 13 and is spaced apart. The tower base cross beam 16 can transfer the vibration on one side of the tower base 15 to the other side, increase the force transmission path of the shock absorber 151, and improve the vibration reduction effect of the cabin assembly 1.

[0048] like Figure 1 and Figure 2 As shown, the windshield crossbeam 17 extends in the left-right direction of the vehicle, and the front windshield of the vehicle can be arranged on the windshield crossbeam 17. The windshield crossbeam 17 can provide support for the front windshield and make the front windshield stronger. Figure 1 The two ends of the left and right directions (as shown) are respectively connected to the two front longitudinal beams 11, and along the front and rear direction of the vehicle, the windshield cross beam 17 is located at the rear side of the tower base cross beam 16 and is spaced apart.

[0049] like Figure 1 and Figure 2 As shown, there are two windshield cross beam connecting beams 18 spaced apart along the left-right direction of the vehicle, one end of the windshield cross beam connecting beam 18 in the length direction is connected to the windshield cross beam 17, and the other end of the windshield cross beam connecting beam 18 in the length direction is connected to the tower base cross beam 16, and along the rear-to-front direction of the vehicle, the two windshield cross beam connecting beams 18 extend in a direction away from each other.

[0050] like Figure 1 and Figure 2 As shown, the tower base cross beam 16 and the windscreen cross beam connecting beam 18 form a stable "triangle" support structure, which can increase the stability and reliability of the connection between the tower base cross beam 16 and the windscreen cross beam connecting beam 18. The tower base cross beam 16 and the windscreen cross beam connecting beam 18 are connected to the left and right towers 15 and the windscreen cross beam 17. When the vehicle is impacted by external forces in the left and right directions, the impact force can be transmitted to the tower base 15, and the shock absorber 151 is used for vibration reduction, which can better provide the lateral support force of the vehicle, and can drive the whole vehicle to deflect. The deflection and collision produce a tendency to slip, thereby reducing the collision energy transmitted to the A-pillar and better protecting the safety of the occupants. The triangular support structure formed by the tower base cross beam 16 and the windscreen cross beam connecting beam 18 is connected to the windscreen cross beam 17, which can improve the stiffness and local mode of the front windshield, thereby improving the NVH (Noise, Vibration, Harshness) performance of the whole vehicle.

[0051] In this embodiment, the tower base 15 adopts a high vacuum die-cast aluminum alloy structure. The tower base 15 has a high degree of design freedom and can be designed according to the interior space of the vehicle. The tower base 15 also has a high rigidity.

[0052] In some embodiments of the present invention, Figure 2 As shown, along the direction from top to bottom of the vehicle (such as Figure 3 As shown in the up and down direction, the windshield cross beam 17, the tower base cross beam 16, the second reinforcement cross beam 13 and the first reinforcement cross beam 12 are arranged in sequence. It can be understood that, along the direction from top to bottom of the vehicle, the triangular support structure formed by the windshield cross beam 17, the tower base cross beam 16 and the windshield cross beam connecting beam 18 is located on the upper side of the cabin assembly 1, the stable "well"-shaped structure formed by the second reinforcement cross beam 13 and the auxiliary longitudinal beam 14 is arranged on the upper surface of the front longitudinal beam 11, and is connected to the front longitudinal beam 11 by bolts, and the first reinforcement cross beam 12 is arranged on the inner side of the left and right front longitudinal beams 11, and is connected to the front longitudinal beam 11 by fasteners through a joint.

[0053] When the vehicle is impacted by external force in the left and right directions, the impact force can be transmitted to the inner side of the front longitudinal beam 11 through the first reinforcing crossbeam 12, and the impact force can be transmitted to the upper side of the front longitudinal beam 11 through the stable "well"-shaped structure formed by the second reinforcing crossbeam 13 and the auxiliary longitudinal beam 14. The impact force can be transmitted to the tower seat 15 through the triangular support structure formed by the windshield crossbeam 17, the tower seat crossbeam 16 and the windshield crossbeam connecting beam 18, which can improve the overall rigidity of the cabin in the left and right directions, thereby improving the vehicle's operational stability and vehicle collision performance, and increasing the reliability of the vehicle.

[0054] Reference below Figure 1-Figure 7 A lower vehicle body assembly 100 according to an embodiment of the present invention is described.

[0055] like Figure 1 and Figure 3 As shown, the lower vehicle body assembly 100 according to the embodiment of the present utility model includes a door sill assembly 2, a floor assembly 3 and the above-mentioned cabin assembly 1.

[0056] Specifically, Figure 1 and Figure 3 As shown, there are two door sill assemblies 2, the door sill assemblies 2 extend along the front-rear direction of the vehicle, and the two door sill assemblies 2 are arranged along the left-right direction of the vehicle.

[0057] The two threshold assemblies 2 are respectively arranged on the left and right sides of the vehicle, and the vehicle door can be arranged on the threshold assemblies 2, which can provide support for the threshold assemblies 2, making the structure of the vehicle more reliable.

[0058] like Figure 3 As shown, the floor assembly 3 includes a front floor front cross beam 31 and a plurality of connecting longitudinal beams 32. The front floor front cross beam 31 extends in the left-right direction of the vehicle. The length direction of the front floor front cross beam 31 (eg Figure 1 The two ends of the cabin assembly 1 (in the left and right directions as shown) are respectively connected to the two door sill assemblies 2. The cabin assembly 1 includes a cabin lower cross beam 19, which extends along the left and right directions of the vehicle. Figure 1 The two ends of the left and right directions (as shown) are respectively connected to the two door sill assemblies 2. Along the front and rear directions of the vehicle, the cabin lower cross beam 19 is located at the rear side of the second reinforcing cross beam 13 and is separated. The front floor front cross beam 31 is located at the rear side of the cabin lower cross beam 19 and is separated. The longitudinal beam 32 is connected in the length direction (as shown in FIG. Figure 1 The two ends of the front and rear directions (as shown) are respectively connected to the front cross beam 31 of the front floor and the lower cross beam 19 of the cabin.

[0059] like Figure 3As shown, multiple connecting longitudinal beams 32 can connect the cabin lower cross beam 19 and the front floor front cross beam 31, and can provide multiple force transmission channels for the cabin assembly 1 and the floor assembly 3. In the collision process of the vehicle, the collision force and energy can be effectively dispersed, and the impact force suffered by the cabin assembly 1 can be transmitted to the front floor front cross beam 31, and the front floor front cross beam 31 can transmit the impact force to the left and right sides of the vehicle. The external force received by the vehicle in the left and right directions can be transmitted and gradually absorbed between the cabin assembly 1, the door sill assembly 2 and the floor assembly 3, which can improve the rigidity of the vehicle in the left and right directions. For example, the connecting longitudinal beams 32 can be two, three, four or five spaced apart along the left and right directions of the vehicle.

[0060] In this embodiment, if Figure 1 and Figure 3 As shown, there are two connecting longitudinal beams 32, and the two connecting longitudinal beams 32, the lower cross beam 19 of the cabin and the front cross beam 31 of the front floor can form a relatively stable "well"-like structure, which can increase the reliability of the vehicle's force transmission structure.

[0061] According to the lower body assembly 100 of the embodiment of the utility model, by arranging the threshold assembly 2, the floor assembly 3 and the cabin assembly 1 in the lower body assembly 100, a plurality of connecting longitudinal beams 32 connect the cabin lower cross beam 19 and the front floor front cross beam 31, which can provide a plurality of force transmission channels for the cabin assembly 1 and the floor assembly 3, and can effectively disperse the collision force and energy during the collision of the vehicle. The external force received in the left and right directions of the vehicle can be transmitted and gradually absorbed between the two front longitudinal beams 11, the first reinforcing cross beam 12, the two second reinforcing cross beams 13 and the plurality of auxiliary longitudinal beams 14, and the impact force suffered by the cabin assembly 1 can be transmitted to the front floor front cross beam 31, and the front floor front cross beam 31 can transmit the impact force to the threshold assemblies 2 on the left and right sides of the vehicle, so that the external force received in the left and right directions of the vehicle can be transmitted and gradually absorbed between the cabin assembly 1, the threshold assembly 2 and the floor assembly 3, and the left and right stiffness of the vehicle can be improved.

[0062] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the connecting longitudinal beam 32 extends along the front-to-back direction of the vehicle, and the multiple connecting longitudinal beams 32 are symmetrically arranged about the center line of the vehicle extending along the front-to-back direction. The connection between the lower cross beam 19 of the cabin and the front cross beam 31 of the front floor is symmetrically arranged about the center line of the vehicle extending along the front-to-back direction. The force transmission channels of the cabin assembly 1 and the floor assembly 3 are symmetrically arranged about the center line of the vehicle extending along the front-to-back direction, so that the layout of the force transmission channels of the cabin assembly 1 and the floor assembly 3 is relatively uniform, which can increase the reliability of the vehicle's force transmission structure, and the force transmission paths of the left and right sides of the vehicle when subjected to force are relatively close, and the force transmission effects of the left and right sides of the vehicle when subjected to force are relatively close.

[0063] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the floor assembly 3 further includes a central channel 33, which extends along the front-rear direction of the vehicle. Figure 1 The two ends of the front cross beam 31 of the front floor and the lower cross beam 19 of the cabin are connected, and the middle channel 33 is located in the middle position of the front cross beam 31 of the front floor along the left and right direction of the vehicle.

[0064] like Figure 1 and Figure 3 As shown, the middle channel 33 can connect the cabin lower cross beam 19 and the front floor front cross beam 31, and can provide multiple force transmission channels for the cabin assembly 1 and the floor assembly 3. In the collision process of the vehicle, the collision force and energy can be effectively dispersed, and the impact force suffered by the cabin assembly 1 can be transmitted to the front floor front cross beam 31. The front floor front cross beam 31 can transmit the impact force to the left and right sides of the vehicle. The external force received by the vehicle in the left and right directions can be transmitted and gradually absorbed between the cabin assembly 1, the door sill assembly 2 and the floor assembly 3, which can improve the rigidity of the vehicle in the left and right directions. When the middle channel 33 is located in the middle position of the front floor front cross beam 31, the width of the middle channel 33 can be larger, and the middle channel 33 can also better increase the reliability of the connection between the cabin lower cross beam 19 and the front floor front cross beam 31.

[0065] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the cabin lower cross beam 19 has a plurality of cavities 21, and each cavity 21 extends along the length direction of the cabin lower cross beam 19. The plurality of cavities 21 can better absorb energy during the force transmission process of the vehicle, and can take into account the stiffness of the overall frame of the vehicle and the stiffness of the floor panel. When the lower body assembly 100 is used in new energy vehicles, it can effectively protect the battery pack during the side pillar collision process, thereby increasing the safety performance of the vehicle.

[0066] In some embodiments of the present invention, Figure 3 and Figure 5 As shown, the front floor front cross beam 31 has a plurality of cavities 21 therein, and each cavity 21 extends along the length direction of the front floor front cross beam 31. The plurality of cavities 21 can better absorb energy during the force transmission process of the vehicle, and can take into account the stiffness of the overall frame of the vehicle and the stiffness of the floor panel. When the lower body assembly 100 is used in new energy vehicles, it can effectively protect the battery pack during the side pillar collision process, thereby increasing the safety performance of the vehicle.

[0067] In some embodiments of the present invention, Figure 3 and Figure 7 As shown, the threshold assembly 2 has a plurality of cavities 21, each cavity 21 extending along the length direction of the threshold assembly 2 (eg Figure 1The plurality of cavities 21 can better absorb energy during the force transmission process of the vehicle, and can take into account the stiffness of the overall frame of the vehicle and the stiffness of the floor panel. When the lower body assembly 100 is used in new energy vehicles, it can effectively protect the battery pack during the side pillar collision, thereby increasing the safety performance of the vehicle.

[0068] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the floor assembly 3 further includes a front floor rear cross member 34, a rear floor front cross member 35, and a rear floor rear cross member 36. The front floor rear cross member 34, the rear floor front cross member 35, and the rear floor rear cross member 36 extend in the left-right direction of the vehicle. In the front-to-back direction of the vehicle, the front floor rear cross member 34 is located at the rear side of the front floor front cross member 31 and is spaced apart from the front floor rear cross member 31, the rear floor front cross member 35 is located at the rear side of the front floor rear cross member 34 and is spaced apart from the rear floor rear cross member 36, and the length direction of the front floor rear cross member 34, the rear floor front cross member 35, and the rear floor rear cross member 36 (as shown in FIG. Figure 3 Both ends of the left and right directions (as shown) are connected to the two door sill assemblies 2 respectively.

[0069] It can be understood that the two ends in the length direction of the cabin lower cross beam 19, the front floor front cross beam 31, the front floor rear cross beam 34, the rear floor front cross beam 35 and the rear floor rear cross beam 36 are respectively connected to the two threshold assemblies 2, and there are many force transmission paths between the two threshold assemblies 2. The cabin lower cross beam 19 is aligned with the front end of the threshold assembly 2, and the rear floor rear cross beam 36 is aligned with the rear end of the threshold assembly 2. The cabin lower cross beam 19, the front floor front cross beam 31, the front floor rear cross beam 34, the rear floor front cross beam 35, the rear floor rear cross beam 36 and the two threshold assemblies 2 can form a relatively complete closed frame structure, which can effectively disperse the collision force and energy during the collision and optimize the safety performance of the vehicle.

[0070] In addition, the lower cross beam 19 of the cabin, the front cross beam 31 of the front floor, the rear cross beam 34 of the front floor, the front cross beam 35 of the rear floor and the rear cross beam 36 of the rear floor adopt through-type extruded profiles to increase the stability of force transmission of the lower cross beam 19 of the cabin, the front cross beam 31 of the front floor, the rear cross beam 34 of the front floor, the front cross beam 35 of the rear floor and the rear cross beam 36 of the rear floor.

[0071] In some embodiments of the present invention, Figure 3 and Figure 6 As shown, the front floor rear cross beam 34 has a plurality of cavities 21, and each cavity 21 extends along the length direction of the front floor rear cross beam 34. The plurality of cavities 21 can better absorb energy during the force transmission process of the vehicle, and can take into account the stiffness of the overall frame of the vehicle and the stiffness of the floor panel. When the lower body assembly 100 is used in new energy vehicles, it can effectively protect the battery pack during the side pillar collision process, thereby increasing the safety performance of the vehicle.

[0072] In this embodiment, if Figure 1 and Figure 3 As shown, the front anti-collision beam 4, the front longitudinal beam 11, the longitudinal beam connecting beam 41, the side beam 42, the tower seat 15, the torsion box 43, the front wall cross beam 44, and the lower cross beam 19 of the cabin are first connected to form a frame of the cabin assembly 1 by means of SPR (Self Piercing Riveting, lock rivet connection), FDS (Flow Dri ll Screw, hot melt self-tapping screw), bolt connection, structural adhesive, etc., the middle channel 33, the connecting longitudinal beam 32 and the front floor front cross beam 31 are connected by means of SPR, FDS, bolt connection, structural adhesive, etc., the rear floor front cross beam 35, the rear floor rear cross beam 36, the rear floor upper cross beam 45, the spare tire cross beam 46, the rear anti-collision beam 47 and the rear longitudinal beam 48 are connected by means of SPR, FDS, bolt connection, structural adhesive, etc. to form the rear floor assembly 3 in the floor assembly. 3, the frame of the cabin assembly 1, the middle channel 33, the connecting longitudinal beam 32, the front floor front cross beam 31, the two door sill assemblies 2 and the rear floor assembly 3 are connected to form the overall structure of the lower body assembly 100 by means of SPR, FDS, bolt connection, structural adhesive, etc., and the first reinforcing cross beam 12, the second reinforcing cross beam 13, the auxiliary longitudinal beam 14, the tower base cross beam 16 and the windshield cross beam connecting beam 18 are further connected to the overall structure of the lower body assembly 100 by bolts to form a complete lower body assembly 100.

[0073] In some embodiments of the utility model, the spacing between any two adjacent ones of the cabin lower cross beam 19, the front floor front cross beam 31, the front floor rear cross beam 34, the rear floor front cross beam 35, and the rear floor rear cross beam 36 is 0-400 mm. The spacing between any two adjacent ones of the cabin lower cross beam 19, the front floor front cross beam 31, the front floor rear cross beam 34, the rear floor front cross beam 35, and the rear floor rear cross beam 36 is not greater than 400 mm, so that the connection position layout of the middle section of the front and rear direction of the vehicle is relatively tight, which can ensure the force transmission effect of the vehicle.

[0074] The vehicle according to the embodiment of the present invention includes the above-mentioned lower vehicle body assembly 100 .

[0075] According to the vehicle of the embodiment of the utility model, by arranging the door sill assembly 2, the floor assembly 3 and the cabin assembly 1 in the lower body assembly 100, a plurality of connecting longitudinal beams 32 connect the cabin lower cross beam 19 and the front floor front cross beam 31, so as to provide a plurality of force transmission channels for the cabin assembly 1 and the floor assembly 3, and effectively disperse the collision force and energy during the collision of the vehicle, and the external force received in the left and right directions of the vehicle can be transmitted and gradually absorbed between the two front longitudinal beams 11, the first reinforcing cross beam 12, the two second reinforcing cross beams 13 and the plurality of auxiliary longitudinal beams 14, and the impact force suffered by the cabin assembly 1 can be transmitted to the front floor front cross beam 31, and the front floor front cross beam 31 can transmit the impact force to the door sill assemblies 2 on the left and right sides of the vehicle, so that the external force received in the left and right directions of the vehicle can be transmitted and gradually absorbed between the cabin assembly 1, the door sill assembly 2 and the floor assembly 3, and the left and right stiffness of the vehicle can be improved.

[0076] Other structures and operations of the cabin assembly 1 according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0077] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0078] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cabin assembly, characterized in that: The cabin assembly is for a vehicle and comprises: A front longitudinal beam, wherein the number of the front longitudinal beams is two, the front longitudinal beams extend along the front-rear direction of the vehicle and the two front longitudinal beams are arranged at intervals along the left-right direction of the vehicle; A first reinforcing cross beam, the first reinforcing cross beam extending in the left-right direction of the vehicle, and two ends of the first reinforcing cross beam in the length direction are respectively connected to the two front longitudinal beams; a second reinforcing cross beam, wherein the number of the second reinforcing cross beams is two, the second reinforcing cross beams extend in the left-right direction of the vehicle, the two second reinforcing cross beams are spaced apart in the front-rear direction of the vehicle, and both ends of the second reinforcing cross beam in the length direction are respectively connected to the two front longitudinal beams; Auxiliary longitudinal beams, the auxiliary longitudinal beams are multiple, the auxiliary longitudinal beams extend along the front-rear direction of the vehicle, the multiple auxiliary longitudinal beams are arranged at intervals along the left-right direction of the vehicle, and the two ends of the auxiliary longitudinal beam in the length direction are respectively connected to two of the second reinforcing cross beams.

2. The cabin assembly according to claim 1, characterized in that: Also includes: Tower base, there are two tower bases, and the two tower bases are respectively connected to the two front longitudinal beams; a tower base cross beam, the tower base cross beam extending in the left-right direction of the vehicle, two ends of the tower base cross beam in the length direction are respectively connected to two tower bases, and the tower base cross beam is located at the rear side of the second reinforcing cross beam and is spaced apart from the second reinforcing cross beam in the front-rear direction of the vehicle; A windshield cross beam, the windshield cross beam extending in the left-right direction of the vehicle, two ends of the windshield cross beam in the length direction are respectively connected to the two front longitudinal beams, and along the front-rear direction of the vehicle, the windshield cross beam is located at the rear side of the tower base cross beam and is spaced apart; A windshield cross beam connecting beam, wherein the windshield cross beam connecting beams are two beams spaced apart in the left-right direction of the vehicle, one end of the windshield cross beam connecting beam in the length direction is connected to the windshield cross beam, and the other end of the windshield cross beam connecting beam in the length direction is connected to the tower base cross beam, and along the rear-to-front direction of the vehicle, the two windshield cross beam connecting beams extend in a direction away from each other.

3. The cabin assembly according to claim 2, characterized in that: Along the direction from top to bottom of the vehicle, the windshield cross beam, the tower base cross beam, the second reinforcement cross beam and the first reinforcement cross beam are arranged in sequence.

4. A lower vehicle body assembly, characterized in that: include: A door sill assembly, wherein the door sill assemblies are two, the door sill assemblies extend along the front-rear direction of the vehicle, and the two door sill assemblies are arranged along the left-right direction of the vehicle; A floor assembly, the floor assembly comprising a front floor front cross beam and a plurality of connecting longitudinal beams, the front floor front cross beam extending in the left-right direction of the vehicle, and both ends of the front floor front cross beam in the length direction are respectively connected to the two door sill assemblies; The cabin assembly according to any one of claims 1 to 3, wherein the cabin assembly comprises a cabin lower cross beam, the cabin lower cross beam extends in the left-right direction of the vehicle, and the two ends of the cabin lower cross beam in the length direction are respectively connected to the two door sill assemblies, along the front-to-back direction of the vehicle, the cabin lower cross beam is located on the rear side of the second reinforcing cross beam and is spaced apart, the front floor front cross beam is located on the rear side of the cabin lower cross beam and is spaced apart, and the two ends of the connecting longitudinal beam in the length direction are respectively connected to the front floor front cross beam and the cabin lower cross beam.

5. The lower vehicle body assembly according to claim 4, characterized in that: The connecting longitudinal beam extends in the front-rear direction of the vehicle, and a plurality of the connecting longitudinal beams are symmetrically arranged about a center line of the vehicle extending in the front-rear direction.

6. The lower vehicle body assembly according to claim 5, characterized in that: The floor assembly also includes: A middle channel extends along the front-to-rear direction of the vehicle, with both ends of the middle channel in the length direction connecting the front cross beam of the front floor and the lower cross beam of the cabin, and along the left-right direction of the vehicle, the middle channel is located in the middle position of the front cross beam of the front floor.

7. The lower vehicle body assembly according to claim 4, characterized in that: The lower cross beam of the cabin has a plurality of cavities, each of which extends along the length direction of the lower cross beam of the cabin; And / or, the front floor front cross beam has a plurality of cavities, each of the cavities extending along the length direction of the front floor front cross beam; And / or, the threshold assembly has a plurality of cavities therein, and each of the cavities extends along the length direction of the threshold assembly.

8. The lower vehicle body assembly according to claim 4, characterized in that: The floor assembly also includes: front floor and rear cross member; rear floor front cross member; A rear floor rear cross beam, the front floor rear cross beam, the rear floor front cross beam and the rear floor rear cross beam extend in the left-right direction of the vehicle, and along the front-back direction of the vehicle, the front floor rear cross beam is located at the rear side of the front floor front cross beam and is spaced apart, the rear floor front cross beam is located at the rear side of the front floor rear cross beam and is spaced apart, and the rear floor rear cross beam is located at the rear side of the rear floor front cross beam and is spaced apart, and both ends of the front floor rear cross beam, the rear floor front cross beam and the rear floor rear cross beam in the length direction are respectively connected to two door sill assemblies.

9. The lower vehicle body assembly according to claim 8, characterized in that: The distance between any two adjacent ones of the cabin lower cross beam, the front floor front cross beam, the front floor rear cross beam, the rear floor front cross beam and the rear floor rear cross beam is 0-400 mm.

10. A vehicle, characterized in that: include: A lower body assembly according to any one of claims 4 to 9.

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