Disclosure of Invention
The invention mainly aims to provide a vehicle body rear cabin assembly and a vehicle, which are used for optimizing the space configuration of a vehicle body rear cabin area, improving the mechanical properties of the vehicle body, optimizing the rigidity and the mode of the vehicle body, improving the NVH performance of the vehicle body and comprehensively improving the safety of the whole vehicle and the comfort of passengers in the vehicle.
In order to achieve the above object, the vehicle body rear cabin assembly according to the present invention includes:
a first strut assembly including a strut plate extending in an up-down direction;
the wheel cover assembly comprises a wheel cover main body structure and a wheel cover inner plate reinforcing plate, wherein the wheel cover main body structure and the wheel cover inner plate reinforcing plate are arranged at intervals in the transverse direction and are connected with the lower ends of the strut plates;
The side girder assembly comprises a side girder arranged along the longitudinal extension and a chassis fixing plate arranged at one end of the side girder in the transverse direction, wherein the side girder and the chassis fixing plate are both arranged below the wheel cover main body structure and are connected with the wheel cover main body structure, and
The beam assembly comprises a beam structure and an end plate, the beam structure is arranged along the transverse extension, the end plate is arranged on the beam structure, the beam structure is in lap joint with part of the side longitudinal beam, and the end plate is connected with the beam structure and the wheel cover inner plate reinforcing plate;
The chassis fixing plate is provided with a first stress node, the first stress node is subjected to connection and support of the end plate, the wheel cover inner plate reinforcing plate, the wheel cover main body structure and the side longitudinal beam, the chassis shock absorber is fixed, the upper end of the support column plate is provided with a second stress node, one end of the cross beam structure, which is far away from the side longitudinal beam, is provided with a third stress node, and two ends of the side longitudinal beam in the longitudinal direction are provided with a fourth stress node and a fifth stress node respectively.
In one embodiment, the pillar panel includes a pillar inner panel and a pillar outer panel disposed at a laterally spaced apart relationship, the pillar inner panel and the pillar outer panel circumscribing to form a first reinforcement cavity;
The wheel cover main body structure comprises a wheel cover inner plate, a wheel cover outer plate and a wheel cover supporting plate, wherein the wheel cover outer plate is connected with the post inner plate and the post outer plate, the wheel cover supporting plate is arranged below the wheel cover outer plate so as to be connected with the wheel cover outer plate and the chassis fixing plate, the wheel cover inner plate is arranged on one lateral side of the wheel cover outer plate and the wheel cover supporting plate and is connected with the wheel cover outer plate and the wheel cover supporting plate, and the wheel cover inner plate, the wheel cover outer plate and the wheel cover supporting plate are enclosed to form a second reinforcing cavity;
The wheel casing inner plate reinforcing plate, the wheel casing inner plate, the wheel casing outer plate, the wheel casing supporting plate, the chassis fixing plate and the end plate enclose to form a third reinforcing cavity.
In one embodiment, the vehicle body rear cabin assembly further comprises a floor panel, wherein the floor panel is arranged on one lateral side of the side rail and is connected with the side rail;
The beam structure comprises an upper beam and a lower beam which are arranged at intervals in the up-down direction, wherein the upper beam and the lower beam are respectively arranged at two sides of the floor in the up-down direction and are respectively lapped at two ends of the side longitudinal beam in the up-down direction;
the upper cross beam, the floor and the side longitudinal beams are enclosed to form a fourth reinforcing cavity;
The lower cross beam, the floor and the side longitudinal beams are enclosed to form a fifth reinforcing cavity;
The side rail has a cavity extending in a longitudinal direction, and the cavity of the side rail forms a sixth reinforcing cavity.
In one embodiment, a first side wall stress node is formed at the upper end of the pillar board, and a second side wall stress node is formed in the middle of the pillar board in the up-down direction;
The vehicle body rear cabin assembly further comprises a second pillar assembly and a longitudinal connecting assembly, the second pillar assembly is positioned on one longitudinal side of the pillar panel and is obliquely arranged from bottom to top towards the pillar panel, the upper end of the second pillar assembly is connected with the pillar panel, the lower end of the second pillar assembly is connected with the side longitudinal beam, the longitudinal connecting assembly is longitudinally arranged between the pillar panel and the second pillar assembly and is connected with the pillar panel and the second pillar assembly, a third side wall stress node and a fourth side wall stress node are respectively formed at the two ends of the second pillar assembly in the up-down direction, a fifth side wall stress node is formed in the middle of the second pillar assembly in the up-down direction, a sixth side wall stress node is formed at the joint of the outer panel of the wheel cover and the longitudinal connecting assembly, and a seventh side wall stress node is formed at the joint of the outer panel of the wheel cover, the second pillar assembly and the longitudinal connecting assembly;
The wheel cover main body structure comprises a wheel cover outer plate, the wheel cover outer plate is arranged on the lower side of the longitudinal connecting component and is connected with the pillar plate, the second pillar component and the longitudinal connecting component, an eighth side wall stress node and a ninth side wall stress node are respectively formed at two longitudinal ends of the wheel cover main body structure, a tenth side wall stress node is formed in the middle of the wheel cover main body structure in the longitudinal direction, and an eleventh side wall stress node is formed at the joint of the wheel cover main body structure and the lower end of the pillar plate;
the first side wall stress node is arranged corresponding to the second stress node, and the third side wall stress node is arranged corresponding to the fifth stress node.
In an embodiment, two side rail assemblies are provided, the two side rail assemblies are respectively arranged at two lateral sides of the beam structure and are respectively connected with two ends of the beam structure, and a first floor stress node and a second floor stress node are formed at the joint of the two side rail assemblies and the beam structure;
The beam assembly further comprises a middle beam, a rear beam and a tail beam, wherein the middle beam and the rear beam are respectively arranged at two sides of the beam structure in the longitudinal direction, the tail beam is arranged at one side of the rear beam, which is far away from the beam structure, the middle beam, the rear beam and the tail beam are all connected with two side beam assemblies, a third floor stress node and a fourth floor stress node are formed at the joint of the middle beam and the two side beam assemblies, a fifth floor stress node and a sixth floor stress node are formed at the joint of the rear beam and the two side beam assemblies, and a seventh floor stress node and an eighth floor stress node are formed at the joint of the tail beam and the two side beam assemblies;
The vehicle body rear cabin assembly further comprises a connecting component, the connecting component comprises a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate is connected with the middle cross beam and the cross beam structure, a ninth floor stress node and a tenth floor stress node are respectively formed at corresponding connection points, the second connecting plate is connected with the rear cross beam and the cross beam structure, an eleventh floor stress node and a twelfth floor stress node are respectively formed at corresponding connection points, the third connecting plate is connected with the tail cross beam and the rear cross beam, and a thirteenth floor stress node and a fourteenth floor stress node are respectively formed at corresponding connection points;
The first floor stress node and the second floor stress node are respectively corresponding to the third stress nodes at two ends of the cross beam structure, the third floor stress node and the fourth floor stress node are respectively corresponding to the fourth stress nodes of the two side stringers, and the seventh floor stress node and the eighth floor stress node are respectively corresponding to the fifth stress nodes of the two side stringers.
In one embodiment, the beam assembly further comprises a roof beam, wherein the roof beam extends along the transverse direction, two end plates are arranged, and the two end plates are arranged at intervals in the transverse direction;
The first pillar components and the wheel cover components are respectively provided with two first pillar components and two wheel cover components are respectively arranged on two lateral sides of the beam structure, the two first pillar components are respectively connected with two ends of the roof beam in the lateral direction, the two wheel cover inner plate reinforcing plates are respectively connected with two end plates, the roof beam, the beam structure, the two end plates, the two first pillar components, the two wheel cover components and the two side beam components are enclosed to form a first reinforcing ring.
In one embodiment, the vehicle body rear cabin assembly further comprises two second strut assemblies, wherein the two second strut assemblies are located on one side of the strut plate in the longitudinal direction and are arranged at intervals in the transverse direction, and the two second strut assemblies extend upwards and downwards;
The beam assembly further comprises a tail beam and a rear top beam, the tail beam and the rear top beam are arranged in a transversely extending mode, the tail beam is located on one side of the beam structure in the longitudinal direction, two ends in the transverse direction are respectively connected with the lower ends of the second support column assemblies, the rear top beam is arranged above the tail beam, and two ends in the transverse direction are respectively connected with the upper ends of the second support column assemblies.
In one embodiment, each of the second strut assemblies is provided with a cavity structure, the cavities of the second strut assemblies forming a seventh reinforcement cavity.
In one embodiment, the tail beam has a cavity extending in a transverse direction, the cavity of the tail beam forming an eighth stiffening cavity, and/or,
The rear top cross beam is provided with a cavity extending transversely, and the cavity of the rear top cross beam forms a ninth reinforcing cavity.
The invention also provides an automobile comprising the automobile body rear cabin assembly.
According to the technical scheme, the first stress node is arranged at the position of the chassis fixing plate, is connected and supported by the end plate, the wheel cover inner plate reinforcing plate, the wheel cover main body structure and the side longitudinal beam and is used for fixing the chassis shock absorber, the second stress node is formed at the upper end of the support plate, the third stress node is formed at one end of the cross beam structure, which is far away from the side longitudinal beam, the fourth stress node and the fifth stress node are respectively formed at the two ends of the side longitudinal beam in the longitudinal direction, at the moment, the first stress node and the second stress node form a first stress path, the first stress node and the third stress node form a second stress path, the first stress node and the fourth stress node form a third stress path, and the first stress node and the fifth stress node form a fourth stress path, and because the first stress node is used for fixing the chassis shock absorber, the vehicle body is dispersed and forced by the first stress node, the vehicle body and the vehicle mounting point can improve the comprehensive external force, the vehicle body can improve the vehicle-mounted external force, and the vehicle-mounted position stability and the vehicle-mounted position is improved, and the vehicle-mounted position is easy to improve the vehicle-mounted position.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a rear vehicle body compartment assembly according to an embodiment (direction);
FIG. 2 is a schematic view of the rear compartment assembly (in another direction) of the vehicle body of FIG. 1;
FIG. 3 is a schematic view of a force-receiving node and a force-receiving region of the rear body compartment assembly (direction) of FIG. 1;
FIG. 4 is a schematic view of a force-receiving node and a force-receiving region of the rear compartment assembly (in another direction) of the vehicle body of FIG. 1;
FIG. 5 is a schematic view of a force-receiving node and a force-receiving region of the rear compartment assembly (in yet another direction) of FIG. 1;
FIG. 6 is a schematic cross-sectional view of M1-M2 of FIG. 5;
FIG. 7 is a schematic cross-sectional view of M1-M4 of FIG. 6;
FIG. 8 is a schematic cross-sectional view of M3-M2 of FIG. 6;
FIG. 9 is a schematic cross-sectional view of N1-N2 of FIG. 5;
FIG. 10 is a schematic cross-sectional view of N3-N4 of FIG. 9;
FIG. 11 is a schematic cross-sectional view of N4-N2 of FIG. 9;
FIG. 12 is a side body force node schematic view of the rear body compartment assembly of FIG. 1;
FIG. 13 is a schematic view of a floor force node of the vehicle body rear compartment assembly of FIG. 1;
FIG. 14 is a schematic view of the first stiffener ring of FIG. 1;
FIG. 15 is a schematic view of the second stiffener ring of FIG. 1;
FIG. 16 is a schematic cross-sectional view of the second stiffener ring of FIG. 15 in a transverse direction;
Fig. 17 is a schematic cross-sectional view of the second reinforcing ring of fig. 15 along the up-down direction.
Reference numerals illustrate:
100. The vehicle body rear cabin assembly comprises 1, a first pillar assembly, 11, a pillar panel, 111, a pillar inner panel, 112, a pillar outer panel, 12, a first reinforcement cavity, 2, a wheel cover assembly, 21, a wheel cover main body structure, 211, a wheel cover inner panel, 212, a wheel cover outer panel, 213, a wheel cover support panel, 22, a wheel cover inner panel reinforcement panel, 23, a second reinforcement cavity, 24, a third reinforcement cavity, 3, a side rail assembly, 31, a side rail, 32, a chassis fixing panel, 33, a sixth reinforcement cavity, 4, a beam assembly, 41, a beam structure, 411, an upper beam, 412, a lower beam, 42, an end plate, 43, a fourth reinforcement cavity, 44, a fifth reinforcement cavity, 45, a middle beam, 46, a rear beam, 47, a tail beam, 471, an eighth reinforcement cavity, 48, a roof beam, 49, a rear roof beam, 491, a ninth reinforcement cavity, 5, a floor, 6, a second pillar assembly, 61, seventh reinforcement cavity, 7, a longitudinal connecting assembly, 8, a connecting assembly, 81, a first connecting plate, a second connecting plate, a third connecting plate and a connecting plate.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear are referred to in the embodiments of the present invention), the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a vehicle body rear cabin assembly and a vehicle, which optimize the space configuration of a vehicle body rear cabin area, improve the mechanical property of the vehicle body, optimize the rigidity and the mode of the vehicle body, improve the NVH performance of the vehicle body and comprehensively improve the safety of the whole vehicle and the comfort of passengers in the vehicle.
Referring to fig. 1 to 4, in an embodiment of the present invention, the rear body module 100 includes a first pillar assembly 1, a wheel cover assembly 2, a side rail assembly 3, and a cross member assembly 4, the first pillar assembly 1 includes a pillar panel 11 extending in an up-down direction, the wheel cover assembly 2 includes a wheel cover main structure 21 and a wheel cover inner panel reinforcing panel 22, the wheel cover main structure 21 and the wheel cover inner panel reinforcing panel 22 are disposed at a spaced apart position in a lateral direction and each connected to a lower end of the pillar panel, the side rail assembly 3 includes a side rail 31 extending in a longitudinal direction, and a chassis fixing panel 32 disposed at one end of the side rail in the lateral direction, the side rail 31 and the chassis fixing panel 32 are disposed below the wheel cover main structure 21, the chassis fixing panel 32 is connected to the wheel cover main structure 21, the beam assembly 4 comprises a beam structure 41 extending transversely and an end plate 42 arranged on the beam structure 41, the beam structure 41 is connected with a part of the side longitudinal beam in a lap joint mode, the end plate 42 is connected with the beam structure 41 and the wheel cover inner plate reinforcing plate 22, a first stress node is arranged at the position of the chassis fixing plate 32 and is connected with and supported by the end plate 42, the wheel cover inner plate reinforcing plate 22 and the wheel cover main body structure 21, the side longitudinal beam 31 is used for fixing a chassis shock absorber, a second stress node is formed at the upper end of the support column plate 11, a third stress node is formed at one end of the beam structure 41, and a fourth stress node and a fifth stress node are formed at two ends of the side longitudinal beam in the longitudinal direction respectively.
In the technical scheme of the invention, a first stress node is arranged at the position of the chassis fixing plate 32, the first stress node is connected and supported by the end plate 42, the wheel cover inner plate reinforcing plate 22, the wheel cover main body structure 21 and the side longitudinal beam 31 and is used for fixing a chassis shock absorber, the upper end of the support column plate 11 forms a second stress node, one end of the cross beam structure 41 far away from the side longitudinal beam forms a third stress node, two ends of the side longitudinal beam in the longitudinal direction form a fourth stress node and a fifth stress node respectively, at this time, the first stress node O and the second stress node A form a first stress path OA, the first stress node O and the third stress node B form a second stress path OB, the first stress node O and the fourth stress node C form a fourth stress path OD, and the first stress node O and the fifth stress node D form a fourth stress path OD, and the first mounting point O are used for improving the vehicle body vibration absorption performance and the vehicle body vibration absorption performance when the first mounting point is used for improving the vehicle body vibration absorption performance and the vehicle body, and the vehicle body is more stable, and the vehicle body is subjected to the vibration absorption performance is improved due to the fact that the first mounting point is subjected to the vibration absorption and the external force is subjected to the high.
Referring to fig. 3-4, in the present invention, the first stress node is O, the second stress node is a, the third stress node is B, the fourth stress node is C, and the fifth stress node is D.
It can be understood that in the present invention, the first stress path OA extends vertically to transmit the external force applied to the first stress node O, the second stress path OB extends horizontally to transmit the external force applied to the first stress node O, the third stress path OC and the fourth stress path OD extend longitudinally, the fourth stress node C and the fifth stress node D are disposed separately on two opposite sides of the first stress node O in the longitudinal direction, the external force applied to the first stress node O can be transmitted along the longitudinal direction and to two opposite sides, and the external force applied to the stress node O is sequentially and gradually dispersed and transmitted under the combined action of the stress node and the stress path, thereby being beneficial to improving the performances such as dynamic stiffness and the like at the first stress node O, improving the performances such as vehicle body and NVH, and improving the comfort of passengers in the vehicle.
It should be noted that, in a further embodiment of the present invention, the second stress node a, the fourth stress node C, and the fifth stress node D form an ACD space stress area in a macro area of the space arrangement of the rear vehicle body compartment assembly 100; the first stress node O, the second stress node A and the fifth stress node D form an AOD space stress area in a space arrangement macroscopic area of the vehicle body rear cabin assembly 100, the first stress node O, the second stress node A and the fourth stress node C form an AOC space stress area in a space arrangement macroscopic area of the vehicle body rear cabin assembly 100, the third stress node B, the fourth stress node C and the fifth stress node D form a BCD space stress area in a space arrangement macroscopic area of the vehicle body rear cabin assembly 100, the first stress node O, the third stress node B and the fourth stress node C form a BOC space stress area in a space arrangement macroscopic area of the vehicle body rear cabin assembly 100, the first stress node B and the fifth stress node D form a BOC space stress area in a space arrangement macroscopic area of the vehicle body rear cabin assembly 100, and the third stress node B and the fifth stress node D form a BCD space stress area in a space arrangement macroscopic area of the vehicle body rear cabin assembly 100, and the fourth stress node B and the fourth stress node C form a macroscopic area in a space arrangement macroscopic area of the vehicle body rear cabin assembly 100. By the arrangement, the stress configuration of the vehicle body rear cabin assembly 100 in the corresponding region can be optimized in each space stress region, meanwhile, the arrangement and design of the plurality of space stress regions can further improve the mechanical property of the vehicle body rear cabin assembly 100, strengthen the overall structural strength of the vehicle body rear cabin assembly 100, optimize the rigidity and the mode of the vehicle body rear cabin assembly 100 and improve the NVH performance of the whole vehicle.
In yet another embodiment of the present invention, the first stress node O, the second stress node a, and the third stress node B form an AOB space stress region in a spatially disposed macro region of the vehicle body rear compartment assembly 100, the second stress node a, the third stress node B, and the fourth stress node C form an ABC space stress region in a spatially disposed macro region of the vehicle body rear compartment assembly 100, and the second stress node a, the third stress node B, and the fifth stress node D form an ABD space stress region in a spatially disposed macro region of the vehicle body rear compartment assembly 100. The plurality of space stress areas are further arranged, so that external force borne by the automobile body rear cabin assembly 100 can be effectively and stably dispersed, the overall structural strength of the automobile body rear cabin assembly 100 is further enhanced, the NVH performance of an automobile body is improved, and the competitiveness of automobile models is improved.
In addition, the unique cross-sectional layout design, effective cross-sectional structural features and novel cross-sectional lap-joint matching relationship are one of the significant innovative points of the present invention, by which the spatial configuration of the interior of the rear body compartment assembly 100 of the present invention can be more clearly demonstrated, referring to fig. 5-11, in one embodiment of the present invention, the pillar panel 11 comprises a pillar inner panel 111 and a pillar outer panel 112 disposed at a laterally spaced apart position, the pillar inner panel 111 and the pillar outer panel 112 enclosing a first reinforcement cavity 12, the wheel housing main structure 21 comprises a wheel housing inner panel 211, a wheel housing outer panel 212 and a wheel housing support panel 213, the wheel housing outer panel 212 connecting the pillar inner panel 111 and the pillar outer panel 112, the wheel cover support plate 213 is disposed below the wheel cover outer plate 212 to connect the wheel cover outer plate 212 and the chassis fixing plate 32, the wheel cover inner plate 211 is disposed at one lateral side of the wheel cover outer plate 212 and the wheel cover support plate 213, and connects the wheel cover outer plate 212 and the wheel cover support plate 213, the wheel cover inner plate 211, the wheel cover outer plate 212 and the wheel cover support plate 213 enclose to form a second reinforcing cavity 23, and the wheel cover inner plate reinforcing plate 22, the wheel cover inner plate 211, the wheel cover outer plate 212, the wheel cover support plate 213, the chassis fixing plate 32 and the end plate 42 enclose to form a third reinforcing cavity 24.
In this embodiment, the third reinforcement cavity 24 is disposed near the first stress node O, so, when the first stress node O is excited, the third reinforcement cavity 24 transmits the node stress to the second reinforcement cavity 23 and the first reinforcement cavity 12 along the cavity, the first reinforcement cavity 12, the second reinforcement cavity 23 and the third reinforcement cavity 24 are disposed at intervals in the vertical and horizontal directions, and the cavities extend longitudinally, and the arrangement and design of multiple stress cavities form a unique spatial configuration, so that the first reinforcement cavity 12, the second reinforcement cavity 23 and the third reinforcement cavity 24 facilitate the multi-directional transmission and uniform distribution of the stress along the cavities, so that the stress is effectively diffused step by step, the mechanical properties of the rear cabin assembly 100 and the vehicle body are improved, the rigidity and the mode are improved, the NVH performance are improved, and the comfort of passengers in the vehicle is improved.
Similarly, to further optimize the mechanical and NVH performance of the rear cabin assembly 100 in all directions, in another embodiment of the present invention, the rear cabin assembly 100 further includes a floor 5, the floor 5 is disposed on one side of the side rail in the transverse direction and is connected to the side rail, the beam structure 41 includes an upper beam 411 and a lower beam 412 disposed at intervals in the vertical direction, the upper beam 411 and the lower beam 412 are disposed on two sides of the floor in the vertical direction and overlap the two ends of the side rail in the vertical direction, the upper beam 411, the floor and the side rail enclose to form a fourth reinforcing cavity 43, the lower beam 412, the floor and the side rail enclose to form a fifth reinforcing cavity 44, the side rail has a cavity extending in the longitudinal direction, and the cavity of the side rail forms a sixth reinforcing cavity 33.
In this embodiment, the first stress node O is disposed at one side of the sixth reinforcement cavity 33, when the first stress node O is excited, the sixth reinforcement cavity 33 receives the external force transmitted from the first stress node O and transmits the force to the fourth reinforcement cavity 43 and the fifth reinforcement cavity 44, the sixth reinforcement cavity 33, the fourth reinforcement cavity 43 and the fifth reinforcement cavity 44 are laterally spaced apart, the fourth reinforcement cavity 43 and the fifth reinforcement cavity 44 are vertically spaced apart, and the sixth reinforcement cavity 33, the fourth reinforcement cavity 43 and the fifth reinforcement cavity 44 are longitudinally extended, so that the fourth reinforcement cavity 43, the fifth reinforcement cavity 44 and the sixth reinforcement cavity 33 are disposed along the longitudinal direction, facilitating the multi-directional transmission and uniform distribution of the force along the cavities, realizing the sequential effective diffusion of the force, improving the vehicle body rear cabin assembly 100 and the vehicle body rigidity and the vehicle body in-stage comfort, improving the vehicle interior comfort performance, and the vehicle-cabin comfort performance.
In summary, the stress is transmitted and uniformly distributed along the cavity in multiple directions through the first reinforcing cavity 12, the second reinforcing cavity 23, the third reinforcing cavity 24, the fourth reinforcing cavity 43, the fifth reinforcing cavity 44 and the sixth reinforcing cavity 33, so that the stress is effectively diffused step by step in sequence, the performances of the vehicle body rear compartment assembly 100, the vehicle body, such as mechanics, NVH and the like, are improved, and the comfort of passengers in the vehicle is improved.
In addition, the invention realizes comprehensive improvement of mechanical and NVH performance of the vehicle body rear cabin assembly 100 through arrangement and configuration optimization, for example, in one embodiment of the invention, a first side surrounding stress node is formed at the upper end of the pillar plate 11, a second side surrounding stress node is formed at the middle part in the upper-lower direction, the vehicle body rear cabin assembly 100 further comprises a second pillar assembly 6 and a longitudinal connecting assembly 7, the second pillar assembly 6 is positioned at one side of the pillar plate 11 in the longitudinal direction and is obliquely arranged from bottom to top towards the pillar plate 11, the upper end of the second pillar assembly 6 is connected with the pillar plate 11, the lower end of the second pillar assembly 6 is connected with the side longitudinal beam, the longitudinal connecting assembly 7 is longitudinally arranged between the pillar plate 11 and the second pillar assembly 6 and is connected with the pillar plate 11 and the second pillar assembly 6, a third side wall stress node and a fourth side wall stress node are respectively formed at the two ends of the second pillar assembly 6 in the up-down direction, a fifth side wall stress node is formed in the middle of the second pillar assembly 6 in the up-down direction, a sixth side wall stress node is formed at the joint of the wheel cover outer plate 212 and the longitudinal connecting assembly 7, a seventh side wall stress node is formed at the joint of the wheel cover outer plate 212, the second pillar assembly 6 and the longitudinal connecting assembly 7, the wheel cover main body structure 21 comprises the wheel cover outer plate 212, the wheel cover outer plate 212 is arranged at the lower side of the longitudinal connecting assembly 7 and is connected with the pillar plate 11, the second pillar assembly 6 and the longitudinal connecting assembly 7, an eighth side wall stress node and a ninth side wall stress node are respectively formed at the two ends of the wheel cover main body structure 21 in the longitudinal direction, a tenth side wall stress node is formed at the middle of the wheel cover main body structure in the longitudinal direction, an eleventh side wall stress node is formed at the connection position of the wheel cover main body structure 21 and the lower end of the pillar board 11.
It should be noted that, referring to fig. 12, in this embodiment, the first side wall stress node is E1, the second side wall stress node is E2, the third side wall stress node is E3, the fourth side wall stress node is E4, the fifth side wall stress node is E5, the sixth side wall stress node is E6, the seventh side wall stress node is E7, the eighth side wall stress node is E8, the ninth side wall stress node is E9, the tenth side wall stress node is E10, and the eleventh side wall stress node is E11.
It should be further noted that, in this embodiment, the first side wall stress node is disposed corresponding to the second stress node, and the third side wall stress node is disposed corresponding to the fifth stress node.
In this embodiment, eleven side wall stress nodes, that is, E1-E11, are provided, and the side wall stress nodes meet to form a plurality of stress paths, for example, in a specific embodiment of the present invention, an external force is transferred to the third side wall stress node E3 through the first stress node O, is transferred to the fifth side wall stress node E5 through the third side wall stress node E3, and is transferred to the fourth side wall stress node E4 through the fifth side wall stress node E5.
Or in another embodiment of the present invention, the external force is transferred from the first stress node O to the eleventh side wall stress node E11, transferred to the second side wall stress node E2 through the eleventh side wall stress node E11, and transferred from the second side wall stress node E2 to the second stress node a (i.e. the first side wall stress node E1), so as to realize the gradual and sequential transfer and distribution of the external force.
The arrangement is that a plurality of side wall stress nodes and a plurality of stress paths between the stress nodes are intersected to form a composite grid area, and under the comprehensive actions of the side wall stress nodes, the stress paths and the composite grid area, the space stress configuration of the vehicle body rear cabin assembly 100 is optimized, the comprehensive improvement of the mechanical property and the NVH performance of the vehicle body rear cabin assembly 100 in multiple directions is realized, and then the comfort of passengers in a vehicle is improved.
In further embodiments of the present invention, the first side wall stress node E1, the fourth side wall stress node E4, the third side wall stress node E3, and the eighth side wall stress node E8 form an E1E4E3E8 spatial stress region in a macroscopic region of the spatial arrangement of the vehicle body rear compartment assembly 100, so that the mechanical properties of the vehicle body rear compartment assembly 100 and the vehicle body are improved, the rigidity and the mode are improved, the NVH performance is improved, and the comfort of passengers in the vehicle is improved.
In order to further optimize the stress form of the rear cabin assembly 100 of the vehicle body, in another embodiment of the present invention, two side rail assemblies 3 are provided, two side rail assemblies 3 are respectively disposed at two lateral sides of the beam structure 41 and are respectively connected with two ends of the beam structure 41, a first floor stress node and a second floor stress node are formed at the connection position of the two side rail assemblies 3 and the beam structure 41, the beam assembly 4 further comprises a middle beam 45, a rear beam 46 and a tail beam 47, the middle beam 45 and the rear beam 46 are respectively disposed at two longitudinal sides of the beam structure 41, the tail beam 47 is disposed at one side of the rear beam 46 away from the beam structure 41, and the middle beam 45, the rear beam 46 and the tail beam 47 are all connected with the two side rail assemblies 3, the joint of the middle cross beam 45 and the two side girder assemblies 3 is provided with a third floor stress node and a fourth floor stress node, the joint of the rear cross beam 46 and the two side girder assemblies 3 is provided with a fifth floor stress node and a sixth floor stress node, the joint of the tail cross beam 47 and the two side girder assemblies 3 is provided with a seventh floor stress node and an eighth floor stress node, the vehicle body rear cabin assembly 100 further comprises a connecting assembly 8, the connecting assembly 8 comprises a first connecting plate 81, a second connecting plate 82 and a third connecting plate 83, the first connecting plate 81 is connected with the middle cross beam 45 and the cross beam structure 41, and a ninth floor stress node and a tenth floor stress node are respectively formed at the corresponding joints, the second connecting plate 82 is connected with the rear cross beam 46 and the cross beam structure 41, and an eleventh floor force node and a twelfth floor force node are formed at the corresponding connection points, respectively, and the third connection plate 83 connects the tail beam 47 and the rear beam 46, and a thirteenth floor force node and a fourteenth floor force node are formed at the corresponding connection points, respectively.
It should be noted that, referring to fig. 13, in this embodiment, the first floor force node is F1, the second floor force node is F2, the third floor force node is F3, the fourth floor force node is F4, the fifth floor force node is F5, the sixth floor force node is F6, the seventh floor force node is F7, the eighth floor force node is F8, the ninth floor force node is F9, the tenth floor force node is F10, the eleventh floor force node is F11, the twelfth floor force node is F12, the thirteenth floor force node is F13, and the fourteenth floor force node is F14.
It should be further noted that, in this embodiment, the first floor force-bearing node F1 and the second floor force-bearing node F2 are respectively corresponding to the third force-bearing nodes B at two ends of the beam structure, the third floor force-bearing node F3 and the fourth floor force-bearing node F4 are respectively corresponding to the fourth force-bearing nodes C of two side stringers, and the seventh floor force-bearing node F7 and the eighth floor force-bearing node F8 are respectively corresponding to the fifth force-bearing nodes D of two side stringers.
It will be appreciated that in this embodiment, fourteen floor force-receiving nodes, i.e. F1-F14, are provided, and that the fourteen floor force-receiving nodes meet to form a plurality of force-receiving paths, for example, in a specific embodiment of the present invention, an external force can be transferred from the third floor force-receiving node F3 (i.e. the fourth force-receiving node C) to the first floor force-receiving node F1, via the first floor force-receiving node F1 to the fifth floor force-receiving node F5, and then from the fifth floor force-receiving node F5 to the seventh floor force-receiving node F7 (i.e. the fifth force-receiving node D).
In yet another embodiment of the present invention, the external force can be transferred from the third floor force-bearing node F3 and/or the fourth floor force-bearing node F4 to the ninth floor force-bearing node F9, to the tenth floor force-bearing node F10 via the ninth floor force-bearing node F9, to the eleventh floor force-bearing node F11 via the tenth floor force-bearing node F10, to the twelfth floor force-bearing node F12 via the eleventh floor force-bearing node F11, to the sixth floor force-bearing node F6 via the twelfth floor force-bearing node F12, and to the eighth floor force-bearing node F8 (i.e., the fifth force-bearing node D) via the sixth floor force-bearing node F6.
The arrangement is that a plurality of floor stress nodes and a plurality of stress paths between the stress nodes are intersected to form a composite grid area, and under the comprehensive actions of the floor stress nodes, the stress paths and the composite grid area, the space stress configuration of the vehicle body rear cabin assembly 100 is optimized, the comprehensive improvement of the mechanical property and the NVH performance of the vehicle body rear cabin assembly 100 in multiple directions is realized, and then the comfort of passengers in a vehicle is improved.
In summary, in the present invention, by the arrangement of the plurality of side wall stress nodes and the plurality of floor stress nodes, a composite grid region and a space stress region are formed, so that the space configuration and the structural characteristics of the vehicle body rear cabin assembly 100 are optimized, the rigidity and the mode of the vehicle body rear cabin assembly 100 are improved, and the performances of the vehicle body rear cabin assembly 100, the mechanics of the vehicle body, the NVH and the like are improved.
In addition, referring to fig. 14, in an embodiment of the present invention, the beam assembly 4 further includes a roof beam 48, the roof beam 48 extends in a transverse direction, two end plates 42 are disposed at intervals in the transverse direction, two first pillar assemblies 1 and two wheel cover assemblies 2 are disposed on two sides of the beam structure 41 in the transverse direction, two first pillar assemblies 1 are respectively connected to two ends of the roof beam 48 in the transverse direction, two inner wheel cover reinforcement plates 22 are respectively connected to two end plates 42, and the roof beam 48, the beam structure 41, two end plates 42, two first pillar assemblies 1, two wheel cover assemblies 2, and two side rail assemblies 3 are enclosed to form a first reinforcement ring. The arrangement of the first reinforcing ring enhances the compactness of mutual association and coupling between the composite grid areas in all directions of the vehicle body rear cabin assembly 100, forms an integral composite space frame structure, forms a space section, improves the rigidity and the mode of the vehicle body rear cabin assembly 100 and the vehicle body, the corresponding mechanical and NVH performance and the like, and improves the comfort of passengers in the vehicle.
Of course, considering the space dimensions of the rear cabin assembly 100 and the vehicle body, a plurality of space ring structures may be disposed along the longitudinal direction to optimize the mechanical properties of the rear cabin assembly 100, referring to fig. 15, in another embodiment of the present invention, the rear cabin assembly 100 further includes two second pillar assemblies 6, both of which are disposed on one side of the pillar panel 11 in the longitudinal direction and are disposed at intervals in the transverse direction, both of which are disposed along the vertical direction, the beam assembly 4 further includes a tail beam 47 and a rear roof beam 49, both of which are disposed along the transverse direction, the tail beam 47 is disposed on one side of the beam structure 41 in the longitudinal direction, both ends in the transverse direction are respectively connected to the lower ends of both of the second pillar assemblies 6, and the rear roof beam 49 is disposed above the tail beam 47, both ends in the transverse direction are respectively connected to the upper ends of both of the second pillar assemblies 6. So configured, the second strut assembly 6, the tail beam 47, and the rear roof beam 49 enclose a second stiffener ring. The arrangement of the second reinforcing ring enhances the compactness of mutual association and coupling between the composite grid areas in all directions of the vehicle body rear cabin assembly 100, forms an integral composite space frame structure, forms a space section, improves the rigidity and the mode of the vehicle body rear cabin assembly 100 and the vehicle body, the corresponding mechanical and NVH performance and the like, and improves the comfort of passengers in the vehicle.
In this embodiment, the first reinforcing ring and the second reinforcing ring are integrally arranged, and the composite grid areas in all directions of the rear cabin assembly 100 are closely related and coupled to form a space integral, so that a basic frame and cabin structure are formed, and all arrangement features are mutually interwoven and complementary, so that the rigidity and the mode of the rear cabin assembly 100 and the vehicle body, the corresponding mechanical NVH performance and the like are improved, and the comfort of passengers in the vehicle is improved.
It should be noted that, since the second reinforcement ring is disposed near the tail of the rear vehicle body cabin assembly 100, in order to further improve the mechanical properties of the second reinforcement ring, referring to fig. 16, in an embodiment of the present invention, each second pillar assembly 6 is provided with a cavity structure, and the cavity of the second pillar assembly 6 forms a seventh reinforcement cavity 61. In this way, the arrangement of the seventh reinforcement cavity 61 improves the rigidity, the modal performance, and the like of the second strut assembly 6, and because the second strut assembly 6 is a component of the second reinforcement ring, the arrangement of the seventh reinforcement cavity 61 further improves the mechanical performance, the NVH performance, and the like of the second reinforcement ring.
Referring to fig. 17, in another embodiment of the present invention, the tail beam 47 has a cavity extending in a lateral direction, and the cavity of the tail beam 47 forms an eighth reinforcing cavity 471. In this way, the arrangement of the eighth reinforcing cavity 471 improves the performances such as rigidity and mode of the tail beam 47, and because the tail beam 47 is also a component of the second reinforcing ring, the arrangement of the eighth reinforcing cavity 471 further improves the performances such as mechanics and NVH of the second reinforcing ring.
In yet another embodiment of the present invention, the rear roof rail 49 has a cavity extending in a lateral direction, and the cavity of the rear roof rail 49 forms a ninth reinforcement cavity 491. Similarly, the provision of the ninth reinforcement cavity 491 improves the rigidity, the mode and other properties of the rear roof rail 49, and the rear roof rail 49 is also an integral part of the second reinforcement ring, so that the provision of the ninth reinforcement cavity 491 further improves the mechanical and NVH properties of the second reinforcement ring.
In the present embodiment, the arrangement of the seventh reinforcing cavity 61, the eighth reinforcing cavity 471 and the ninth reinforcing cavity 491 improves mechanical properties such as structural strength, rigidity and NVH properties such as mode of the second reinforcing ring, and improves comfort of occupants in the vehicle.
In summary, the invention is designed with stress nodes, stress paths, stress cavities, space stress areas, space sections, composite grid areas, composite space frame structures and the like, and combines unique section arrangement design, effective section structural characteristics and novel section lap joint matching relations to realize the improvement of the comprehensive performance of the vehicle body rear cabin assembly and the vehicle body; the multi-stress-path structure is characterized in that a multi-stress-path shape is constructed through multi-stress-path arrangement, the stressed external force is effectively and stably dispersed under the comprehensive action of stress nodes and stress paths, a unique space structure is formed through multi-stress-cavity arrangement, the stress is favorably transmitted and uniformly distributed along the cavity, the stress nodes, the stress paths and the stress cavities are composited in a staggered and matched mode, so that the stress is transmitted and spread step by step sequentially, a plurality of side wall stress nodes, a plurality of floor stress nodes and stress paths among the stress nodes are intersected to form a composite grid area, the first reinforcing ring and the second reinforcing ring are arranged to form a space section, the composite grid area and the space section are mutually related and tightly coupled, and all arrangement characteristics are interweaved and complemented to form an integral composite space frame structure, so that the basic structure of the vehicle body rear cabin assembly is constructed, the stress mode of the vehicle body rear cabin assembly is optimized, the rigidity and the vehicle body, the corresponding mechanical and NVH performance and the like are improved, and the comfort in the vehicle is improved.
The invention also provides an automobile, which comprises the automobile body rear cabin assembly 100, and the specific structure of the automobile body rear cabin assembly 100 refers to the embodiment, and because the automobile adopts all the technical schemes of all the embodiments, the automobile at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.
The foregoing description is only exemplary embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present invention.