CN112874637A - Automobile body rear deck frame assembly and vehicle - Google Patents
Automobile body rear deck frame assembly and vehicle Download PDFInfo
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- CN112874637A CN112874637A CN201911208400.0A CN201911208400A CN112874637A CN 112874637 A CN112874637 A CN 112874637A CN 201911208400 A CN201911208400 A CN 201911208400A CN 112874637 A CN112874637 A CN 112874637A
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- 230000002787 reinforcement Effects 0.000 claims description 94
- 230000035939 shock Effects 0.000 claims description 25
- 239000006096 absorbing agent Substances 0.000 claims description 23
- 230000002265 prevention Effects 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 abstract description 52
- 230000005540 biological transmission Effects 0.000 abstract description 16
- 238000003466 welding Methods 0.000 description 15
- 230000000712 assembly Effects 0.000 description 14
- 238000000429 assembly Methods 0.000 description 14
- 238000005096 rolling process Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003856 thermoforming Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2887—Fixation to a transversal anchorage bar, e.g. isofix
- B60N2/289—Fixation to a transversal anchorage bar, e.g. isofix coupled to the vehicle frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
- B60N2/015—Attaching seats directly to vehicle chassis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/16—Mud-guards or wings; Wheel cover panels
- B62D25/163—Mounting devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention is suitable for the technical field of vehicle structures, and discloses a vehicle body rear cabin frame assembly and a vehicle. The automobile body rear cabin frame assembly comprises side longitudinal beams arranged on the left side and the right side respectively, and is characterized by further comprising two C-column reinforcing components with opposite openings, a top cover rear cross beam lower plate is connected between the upper ends of the two C-column reinforcing components, a rear floor upper cross beam is connected between the lower ends of the two C-column reinforcing components, and the two ends of the rear floor upper cross beam are connected with the side longitudinal beams respectively. The invention further provides a vehicle which is provided with the vehicle body rear cabin frame assembly. The vehicle body rear cabin frame assembly and the vehicle provided by the invention have the advantages that the structural strength, rigidity, modal and other properties of the vehicle body rear cabin are enhanced, and the force transmission efficiency under the conditions of collision stress and roadblock vibration is improved.
Description
Technical Field
The invention belongs to the technical field of vehicle structures, and particularly relates to a vehicle body rear cabin frame assembly and a vehicle.
Background
The vehicle body structure is constituted by an outer cover, a beam, a pillar, and a structural reinforcement, and is a basic system for receiving and transmitting loads such as a road chassis collision. The design of the car body structure has a decisive role in the safety, the endurance strength, the bending and torsional rigidity and the modal performance of the body in white. The structural design of the vehicle body affects not only the performance of the vehicle body, but also the weight and cost of the vehicle body. The existing vehicle body rear cabin frame consists of a lower vehicle body rear frame and an upper vehicle body rear frame, wherein the lower vehicle body rear frame is simple in structure and convenient to manufacture, but the structural performance of the lower vehicle body rear frame cannot meet the design requirements of modern vehicles; go up automobile body rear portion frame construction complicacy, spare part is more to lead to the die sinking expense high, this structure is whole frame construction rigidity mode good simultaneously, but goes up automobile body rear portion power transmission route relatively poor when the vehicle collides, the phenomenon that the atress concentrates appears easily.
Disclosure of Invention
The invention aims to solve at least one of the technical problems and provides a vehicle body rear cabin frame assembly and a vehicle, which can enhance the structural strength, rigidity, modal and other properties of a rear cabin and improve the force transmission efficiency when collision stress and roadblock vibration occur.
The technical scheme of the invention is as follows: the utility model provides an automobile body backspace frame assembly, includes the side longeron that the left and right sides set up respectively, still includes two opening C post reinforcement component in opposite directions, two be connected with top cap rear cross beam hypoplastron between the upper end of C post reinforcement component, two be connected with back floor entablature between the lower extreme of C post reinforcement component, just the both ends of back floor entablature respectively with two the side longeron is connected.
Optionally, the vehicle body rear cabin frame assembly further comprises a shock absorber installation seat plate arranged on the left side and the right side respectively, one end of the shock absorber installation seat plate is connected with the side longitudinal beam, the other end of the shock absorber installation seat plate is connected with the C-pillar reinforcement component, and the shock absorber installation seat plate, the side longitudinal beam and the C-pillar reinforcement component are connected to form a triangular structure.
Optionally, the rear floor upper cross member is located forward of the center of the vehicle rear tire, and the C-pillar reinforcement assembly is inclined toward the rear end of the side rail.
Optionally, the vehicle body rear cabin frame assembly further comprises D-column reinforcing components arranged on the left side and the right side respectively, the upper ends of the D-column reinforcing components are connected with the C-column reinforcing components, the lower ends of the D-column reinforcing components are connected with a rear wall cross beam, and the rear wall cross beam is connected with the rear ends of the side longitudinal beams.
Optionally, the C-pillar reinforcement assembly comprises a rear wheel house inner plate front reinforcement plate, a rear wheel house inner plate rear reinforcement plate, a wheel house connection plate upper section and a connection reinforcement member, the D-pillar reinforcement assembly comprises a D-pillar inner plate upper section and a D-pillar inner plate lower section, the lower portion of the rear wheel house inner plate front reinforcement plate is connected to the end portion of the rear floor upper beam, the lower portion of the rear wheel house inner plate rear reinforcement plate is connected to the upper portion of the rear wheel house inner plate front reinforcement plate, the lower portion of the wheel house connection plate upper section is connected to the upper portion of the rear wheel house inner plate rear reinforcement plate, the upper portion of the wheel house connection plate upper section is connected to the middle portion of the connection reinforcement member, the end portion of the top cover rear beam lower plate is connected to the connection reinforcement member, and the lower portion of the connection reinforcement member is connected to the upper portion of the D-pillar inner plate upper section, and the lower portion of the D-pillar, the lower part of the lower section of the D column inner plate is connected to the end part of the rear wall beam.
Optionally, the vehicle body rear cabin frame assembly further comprises rear auxiliary frame front mounting seats arranged on the left side and the right side respectively, the rear auxiliary frame front mounting seats are connected to the side longitudinal beams, and a rear underfloor middle cross beam is connected between the auxiliary frame front mounting seats.
Optionally, the rear under-floor cross member is located below the rear floor upper cross member.
Optionally, a rear-row seat anti-falling structure or/and a child seat mounting structure is/are arranged on the rear underfloor middle cross beam.
Optionally, the rear floor upper cross beam is connected with a rear row seat mounting bracket.
The invention further provides a vehicle which is provided with the vehicle body rear cabin frame assembly.
The invention provides a vehicle body rear compartment frame assembly and a vehicle, which have the following effects by optimally designing the vehicle body rear compartment frame assembly:
1. the C-column reinforcing component is arranged on the upper frame assembly at the rear part of the vehicle body to support and reinforce the C column of the vehicle, so that various stresses generated in the driving process can be effectively transmitted to the vehicle body through the C-column reinforcing component to disperse the stress of the lower vehicle body, and excessive deformation caused by concentrated stress of individual areas during collision is avoided, so that the vehicle collision safety coefficient is improved;
2. the shock absorber mounting seat plate is connected to the C-pillar reinforcing component, so that the shock absorber mounting seat plate, the side longitudinal beam and the C-pillar reinforcing component form a triangle, and the shock from the vibration force of a road barrier when a vehicle runs can be effectively resisted by utilizing the stability of the triangle, so that the running comfort of the vehicle is improved;
3. the D column reinforcing component is arranged to reinforce the D column of the vehicle, and the C column reinforcing component is connected to the D column reinforcing component to form a new force transmission path, so that the collision force can be transmitted and dispersed more conveniently when collision occurs, and the safety of the upper vehicle body structure is ensured;
4. through be connected with back underfloor middle cross beam before two back sub vehicle frame between the mount pad for back sub vehicle frame installation becomes more firm, and back underfloor middle cross beam assembly can regard as children's seat's additional strengthening, need not to increase the reinforcement of other forms, just can satisfy children's seat mounting point intensity's regulation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a rear compartment frame assembly of a vehicle body according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic diagram of a force transmission path of a C-pillar reinforcement component in a rear compartment frame assembly of a vehicle body according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a force transmission path in a crash of a rear compartment frame assembly of a vehicle body according to an embodiment of the invention;
FIG. 5 is a schematic view of a lower frame assembly of a rear compartment frame assembly of a vehicle body provided in accordance with an embodiment of the present invention;
FIG. 6 is an exploded view of a lower frame assembly of a rear compartment frame assembly of a vehicle body provided in accordance with an embodiment of the present invention;
FIG. 7 is a schematic structural view of a child seat side mounting bracket of a rear compartment frame assembly of a vehicle body according to an embodiment of the present invention;
FIG. 8 is an enlarged schematic view at B of FIG. 7;
FIG. 9 is an enlarged schematic view at C of FIG. 7;
FIG. 10 is a partial schematic view of the subframe mount location from below looking up.
FIG. 11 is an enlarged fragmentary view of the rear subframe mounts of FIG. 10 in connection with the reinforcement structure.
In the figure, 1-rear impact beam, 2-connecting plate, 3-energy-absorbing box, 4-mounting structure, 5-rear longitudinal beam rear beam, 6-rear longitudinal beam rear sealing plate, 7-rear longitudinal beam front beam, 8-rear longitudinal beam front sealing plate, 9-threshold beam, 10-rear underfloor rear connecting beam, 11-lower rear cross beam connecting plate, 12-rear floor upper connecting beam, 13-upper cross beam connecting plate, 14-rear underfloor middle connecting beam, 15-lower middle cross beam connecting plate, 16-lower front and rear floor connecting plate, 17-rear underfloor front connecting beam, 18-rear wheel house inner panel front reinforcing plate, 19-rear wheel house inner panel rear reinforcing plate, 20-wheel house connecting plate upper section, 21-connecting reinforcing member, 22-top cover rear cross beam lower plate, 23-D column inner panel upper section, 24-D column inner plate lower section, 25-back panel upper beam, 26-back panel, 27-shock absorber mounting seat plate, 28-back sub frame front mounting seat, 29-back floor, 30-side mounting plate, 31-side hook and 32-middle safetyMounting plate, 33-middle hook, 34-back row seat anti-falling structure, 35-back row seat mounting bracket, 3 m-U-shaped piece, 9m1Upper bent edge, 9m2-side straight edges, 10 z-rear underfloor rear cross beam, 12 z-rear underfloor upper cross beam, 14 z-rear underfloor middle cross beam, 17 z-rear underfloor front cross beam, 25 z-rear surrounding cross beam, 7 j-longitudinal beam reinforcing plate, 7 c-longitudinal beam supporting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed or connected, or indirectly disposed or connected through intervening elements or intervening structures.
In addition, in the embodiments of the present invention, if there are terms of orientation or positional relationship indicated by "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., it is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the structure, feature, device or element referred to must have a specific orientation or positional relationship, nor must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The various features and embodiments described in the embodiments may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and in order to avoid unnecessary repetition, various possible combinations of features/embodiments in the present invention will not be described in detail.
For convenience of explanation, definitions are: the width direction of the vehicle is the X-axis, the length direction of the vehicle is the Y-axis, and the height direction of the vehicle is the Z-axis.
As shown in fig. 3, the vehicle body rear compartment frame assembly provided in the embodiment of the present invention includes side longitudinal beams respectively disposed on the left and right sides (in the X-axis direction), and also includes two C-pillar reinforcement components having opposite openings, the lower ends of the two C-pillar reinforcement components are connected by a rear floor upper cross beam 12z, both ends of the rear floor upper cross beam 12z are further connected to the left and right side longitudinal beams, and the upper ends of the two C-pillar reinforcement components are connected by a roof rear cross beam lower plate 22. The C-pillar reinforcement component is arranged on the inner side of the C pillar of the vehicle and used for reinforcing the structural strength of the C pillar of the vehicle, various stresses applied in the running process of the vehicle can be transmitted to the two C-pillar reinforcement components through the upper rear floor beam 12z and then are dispersed to the upper portion of the rear vehicle body through the C-pillar reinforcement component, meanwhile, the roof is supported and reinforced through the rear top cover beam lower plate 22 connected to the upper end of the C-pillar reinforcement component and serves as a force transmission path of the upper portion of the rear vehicle cabin of the vehicle, the stresses are further dispersed to the region of the roof, the force transmission efficiency is improved on the premise that the structural strength of the rear vehicle cabin frame assembly of the vehicle is ensured, excessive deformation caused by stress concentration of the individual region at the rear part of the vehicle.
Specifically, the cross section of the C-pillar reinforcement assembly may be arc-shaped, such as C-shaped, when viewed from the vehicle head direction.
Optionally, as shown in fig. 3, the vehicle body rear cabin frame assembly further includes a shock absorber mounting seat plate 27 respectively disposed on the left and right sides, the shock absorber mounting seat plate 27 is specifically located such that one end of the left shock absorber mounting seat plate 27 is connected to the left side longitudinal beam, the other end of the left shock absorber mounting seat plate 27 is connected to the left C pillar reinforcement member, one end of the right shock absorber mounting seat plate 27 is connected to the right side longitudinal beam, and the other end of the right shock absorber mounting seat plate 27 is connected to the right C pillar reinforcement member, such that the shock absorber mounting seat plate 27 can transmit the road barrier vibration force generated when the vehicle runs to the C pillar reinforcement member and further disperse the force to the whole vehicle body rear cabin, thereby improving the comfort and stability of the vehicle running and reducing the tire noise, the shock absorber mounting seat plate 27, the side longitudinal beam and the C pillar reinforcement member are connected to form a triangular structure, which is designed to utilize the stability of, the vibration impact from the auxiliary frame can be effectively resisted, and the modal performance of the vehicle body is improved.
Optionally, rear floor entablature 12z is located the place ahead at vehicle rear tire center, and the rear end slope of subassembly orientation side longeron is strengthened to the C post for the C post is strengthened the subassembly and is constituted certain contained angle with the vehicle direction of height, and the design like this makes the C post strengthen the subassembly and strengthen the support when vehicle C post, still ingenious toward vehicle D post direction dispersion with doing all can, forms new power transmission route, further avoids stress concentration.
Optionally, as shown in fig. 1 and 4, the rear vehicle cabin frame assembly further includes a D-pillar reinforcement assembly disposed on each of the left and right sides, the D-pillar reinforcement assembly is located inside the D-pillar of the vehicle to support the D-pillar of the vehicle, so as to enhance the deformation resistance of the D-pillar of the vehicle, the D-pillar reinforcement assemblies on each of the left and right sides are respectively connected to the corresponding C-pillar reinforcement assemblies, for example, the upper end of the D-pillar reinforcement assembly on the left side is connected to the upper end of the C-pillar reinforcement assembly on the left side, the upper end of the D-pillar reinforcement assembly on the right side is connected to the upper end of the C-pillar reinforcement assembly on the right side, a rear surrounding beam 25z is connected between the lower ends of the D-pillar reinforcement assemblies on each of the. Therefore, the D-column reinforcing component, the C-column reinforcing component and the top cover rear cross beam lower plate 22 are connected to form a structure similar to a T shape, the supporting effect on the D column of the vehicle is further improved, after the C-column reinforcing component and the D-column reinforcing component are connected, a force transmission path between the upper portion and the lower portion of the rear cabin frame assembly of the vehicle body is formed, the force transmission and dispersion effect on the rear cabin frame assembly of the vehicle body is better, and the strength, the rigidity, the mode and other performances of the whole rear cabin frame assembly of the vehicle body are improved.
Alternatively, as shown in fig. 1 and 2, the C-pillar reinforcement assembly includes a rear wheel house inner panel front reinforcement plate, a rear wheel house inner panel rear reinforcement plate, a wheel house connection plate upper section, and a connection reinforcement, the D-pillar reinforcement assembly includes a D-pillar inner panel upper section and a D-pillar inner panel lower section, wherein a lower portion of the rear wheel house inner panel front reinforcement plate 18 is connected to an end portion of the rear floor upper beam 12z, a lower portion of the rear wheel house inner panel rear reinforcement plate 19 is connected to an upper portion of the rear wheel house inner panel front reinforcement plate 18, a lower portion of the wheel house connection plate upper section 20 is connected to an upper portion of the rear wheel house inner panel rear reinforcement plate 19, an upper portion of the wheel house connection plate upper section 20 is connected to a middle portion of the connection reinforcement 21, an end portion of the top cover rear beam lower plate 22 is connected to the connection reinforcement 21, and a lower portion of the connection reinforcement 21 is connected to an upper portion of the D-pillar inner panel upper section, the lower portion of the D-pillar inner panel lower section 24 is connected to the end of the rear wall cross member 25 z. The C column reinforcing component and the D column reinforcing component are designed into a structure which is spliced in a blocking mode, the C column reinforcing component and the D column reinforcing component have the advantages of being simple and easy to assemble, simple in structure, low in processing difficulty, convenient to store and transport, and low in cost of producing the die. In practical application, the C-pillar reinforcement assembly and the D-pillar reinforcement assembly may be integrally formed.
Optionally, as shown in fig. 5 and 6, a rear anti-collision beam 1 is connected to the rear end of the side longitudinal beam to protect from rear-end collision, and an energy-absorbing box 3 is arranged between the rear anti-collision beam 1 and the side longitudinal beam, so that when a rear-end collision accident occurs, the energy-absorbing box 3 can absorb collision energy through collapsing deformation, thereby buffering the impact force generated by the collision and reducing the damage degree of the vehicle collision.
Specifically, as shown in fig. 5 and 6, a connecting plate 2 is arranged between the rear end of the energy absorption box 3 and the rear impact beam 1, and the front end of the energy absorption box 3 is welded and fixed with the rear end of the side longitudinal beam through a mounting structure 4.
Specifically, as shown in fig. 6, the energy-absorbing box 3 includes two U-shaped members 3m symmetrically distributed, the openings of the two U-shaped members 3m are oppositely disposed, and the two U-shaped members are fastened and welded together in an up-down symmetrical or left-right symmetrical manner, and a shielding gas shielding welding manner can be adopted during welding, and the shielding gas can be carbon dioxide or the like, so that the welding effect is good.
Specifically, the lower end of the rear wall cross member 25 may be connected to the side members by the mounting structure 4.
Specifically, as shown in fig. 6, the mounting structure 4 may be a plate with a through hole in the middle, the through hole has a flange, and the plate is sleeved at the front end of the energy-absorbing box 3 through the through hole and is fixed to the side of the energy-absorbing box 3 through the flange by spot welding.
Alternatively, as shown in fig. 10 and 11, the rear body cabin frame assembly further includes rear sub-frame front mounting seats 28 respectively disposed on the left and right sides, the corresponding rear sub-frame front mounting seats 28 are connected to the corresponding side longitudinal beams, for example, the left rear sub-frame front mounting seat 28 is connected to the left side longitudinal beam, the right rear sub-frame front mounting seat 28 is connected to the right side longitudinal beam, and a rear under-floor center cross member 14z is further connected between the two sub-frame mounting seats 28, the rear under-floor center cross member 14z is used for supporting the left and right side longitudinal beams in the Y-axis direction, the side longitudinal beams and the rear sub-frame front mounting seats 28 are supported, and the rear under-floor center cross member 14z can serve as a reinforcing structure of the sub-frame mounting seats 28, so as to improve the reliability of connection of.
Alternatively, as shown in fig. 5 to 7, the rear underfloor center cross member 14z is located obliquely below the rear floor upper cross member 12z, and the structural strength of the side members is further reinforced by adopting a vertically distributed design on the side close to the vehicle head. Wherein, can be connected to back floor under on the crossbeam 14z with back row seat anti-disengaging structure 34 and children's seat mounting structure, can regard back floor under the crossbeam 14z as the atress roof beam of back row seat mount pad 35, can also regard as the reinforcement of back row children's seat mounting structure simultaneously, support children's seat mounting structure, satisfy the requirement of the intensity regulation of back row seat, compare with current structure, the subsidiary reinforcement of children's seat mounting structure has been omitted.
Specifically, as shown in fig. 7, the child seat mounting structure includes a child seat side mounting bracket 30z and a child seat center mounting bracket 32z, the child seat side mounting bracket 30z being fixedly attached to the side rails, and the two child seat center mounting brackets 32z being attached to the rear underfloor center cross member 14 z. Under the prerequisite of guaranteeing that back floor entablature 12z position is unchangeable, the position of adjustable back floor under well crossbeam 14z removes back floor under well crossbeam 14z to the below of children's seat mounting structure as required, comes to support installing support 32z among the children's seat, adapts to and the motorcycle type of difference.
Specifically, as shown in fig. 5 and 6, the rear vehicle body cabin frame assembly further includes a rear underfloor front cross member 17z and a rear underfloor rear cross member 10z, the rear underfloor front cross member 17z and the rear underfloor rear cross member 10z are respectively connected between the side longitudinal members, wherein the rear underfloor front cross member 17z, the rear underfloor middle cross member 14z, the rear underfloor upper cross member 12z and the rear underfloor rear cross member 10z are sequentially arranged at intervals along the front end to rear end direction of the side longitudinal members, and the two side longitudinal members are combined to form the lower frame assembly (as shown in fig. 5) of the rear vehicle body cabin frame assembly, so that when a vehicle is collided by a side surface (X-axis direction), a force generated at the collision can be transmitted to the other side of the vehicle, that is, the rear underfloor front cross member 17z, the rear underfloor middle cross member 14z, the rear underfloor upper cross member 12z, the degree of torsional deformation is reduced.
Specifically, as shown in fig. 7, the rear vehicle body cabin frame assembly further includes a rear floor 29, a front end of the rear floor 29 is connected to a rear under-floor front cross member 17z, and a rear end of the rear floor 29 extends to a rear end of the side longitudinal member, wherein the rear under-floor middle cross member 14z and the rear under-floor rear cross member 10z are located below the rear floor 29 to support the rear floor 29, and the rear-floor upper cross member 12z is located above the rear floor 29, in practical applications, the child seat middle mounting bracket 32z or/and the rear seat anti-drop structure 34 may be welded and fixed to the rear floor 29, and the child seat middle mounting bracket 32z or/and the rear seat anti-drop structure 34 are located above the rear under-floor middle cross member 14z, that is, the rear under-floor middle cross member 14z simultaneously supports the child seat middle mounting bracket 32z, the rear seat anti-drop structure 34 and the rear floor 29.
Fig. 3 is a force transmission path diagram of two C-pillar reinforcement assemblies, in the driving process of the vehicle, the acting force received by the upper rear floor beam 12z and the lower rear floor beam 10z can be transmitted through the C-pillar reinforcement assemblies and dispersed to the upper vehicle body, so that the stress concentration at the lower part of the rear cabin of the vehicle body can be avoided, meanwhile, the force generated during the shock absorption of the shock absorber of the rear wheel of the vehicle can be transmitted to the C-pillar reinforcement assemblies through the shock absorber mounting seat plate 27, and is dispersed to the upper vehicle body through the C-pillar reinforcement assemblies, so that the bumping feeling of passengers in the vehicle is effectively reduced, and the comfort of the passengers in the rear row is improved.
Fig. 4 is a schematic diagram of a force transmission path when the rear compartment frame assembly of the vehicle body collides, specifically, a rear-end collision occurs to the vehicle. When in rear-end collision, a part of impact force is transmitted to the vehicle head direction along the left and right rear longitudinal beams, the impact force is shared by the front rear underfloor cross beam 17z, the middle rear underfloor cross beam 14z, the upper rear underfloor cross beam 12z and the rear underfloor rear cross beam 10z in the transmission process of the rear longitudinal beams, and the other part of impact force is transmitted to the vehicle roof and the C-pillar reinforcing assemblies through the D-pillar reinforcing assemblies on the two sides. Therefore, after the impact force is transmitted and dispersed in multiple ways, the amount of the impact force directly acting on the rear longitudinal beam is reduced, so that the deformation of the rear longitudinal beam is reduced when rear-end collision occurs, the safety factor of the vehicle rear-end collision is improved, and the personal safety of rear-row passengers is guaranteed.
In a specific application, as shown in fig. 5 and 6, the side longitudinal beam comprises a threshold beam 9, a rear longitudinal beam front section assembly and a rear longitudinal beam rear section assembly, the rear longitudinal beam rear section assembly comprises a rear longitudinal beam rear section beam 5 and a rear longitudinal beam rear section sealing plate 6, the rear longitudinal beam front section assembly comprises a rear longitudinal beam front section beam 7 and a rear longitudinal beam front section sealing plate 8, the threshold beam 9 is composed of two rolling beams, and the rolling beams have side straight edges of 9m2And is connected to the side straight edge 9m2Upper bending edge 9m at upper and lower ends1And the lower bending edge, the cross section of each rolling beam is of a structure like a Chinese character 'ji', and the left and right openings of the two rolling beams are opposite. Wherein:
threshold roof beam 9, back longeron anterior segment subassembly and back longeron back end subassembly overlap joint in proper order from the past backward, for example, back longeron back end shrouding 6 is sealed and is covered on back longeron back end roof beam 5, back longeron anterior segment shrouding 8 is sealed and is covered on back longeron anterior segment roof beam 7, and the rear longeron back end of 5 rear end roof beams impresses the rear end of back longeron anterior segment roof beam 7, and the front end of back longeron anterior segment roof beam 7 is connected in the opening outside (by the inside outside direction of vehicle) the side straight limit 9m of roll-in roof2The rear longitudinal beam rear section sealing plate 6 is overlapped on the rear longitudinal beam front section sealing plate 8, the front end of the rear longitudinal beam front section sealing plate 8 is overlapped on an upper bending edge 9m of a rolling beam with an outward opening (a direction pointing to the outside from the inside of the vehicle)1The joint is fixed by welding, and the cross section of the lap joint of the front end of the rear longitudinal beam rear section beam 5 and the rear end of the rear longitudinal beam front section beam 7 is shaped like a Chinese character 'ji' when viewed from the Y-axis direction, and the opening faces upwards (Z-axis direction);
as shown in fig. 6, the rear underfloor front cross member 17Z includes a lower front and rear floor connecting plate 16 and a rear underfloor front connecting beam 17, the cross sections of the lower front and rear floor connecting plate 16 and the rear underfloor front connecting beam 17 are Z-shaped as viewed from the X-axis direction (i.e., the lower front and rear floor connecting plate 16 includes a main connecting plate and sub-connecting plates connected to both ends of the main connecting plate, the included angle between the main connecting plate and the sub-connecting plates is equal to or greater than 90 °, the structure of the rear underfloor front connecting beam 17 is similar to that of the lower front and rear floor connecting plate 16), the lower front and rear floor connecting plate 16 and the rear underfloor front connecting beam 17 are fastened, pressed, welded and fixed up and down, the rear underfloor front connecting beam 17 may serve as a reinforcement of the lower front and rear floor connecting plate 16, the structural strength of the lower front and rear underfloor front connecting plate 16 is improved, both ends of the rear underfloor front cross member 17Z are, all the joints are fixed by welding;
as shown in fig. 6, the rear underfloor middle cross beam 14Z includes a rear underfloor middle connecting beam 14 and two lower middle cross beam connecting plates 15, the cross section of the rear underfloor middle connecting beam 14 is in a shape of a few characters from the X-axis direction, and the opening faces upward (Z-axis direction), two ends of the rear underfloor middle connecting beam 14 are respectively connected with the left and right rear longitudinal beam front section assemblies through the lower middle cross beam connecting plates 15, for example, the end of the rear underfloor middle connecting beam 14 is pressed into the lower middle cross beam connecting plates 15, the two lower middle cross beam connecting plates 15 respectively abut against inner side faces of the left and right rear longitudinal beam front section assemblies, and each connection is fixed by welding;
as shown in fig. 6, the rear floor upper beam 12Z includes a rear floor upper connecting beam 12 and two upper beam connecting plates 13, the cross section of the rear floor upper connecting beam 12 may be in a shape of a few from the X-axis direction, and the opening is downward (Z-axis direction), both ends of the rear floor upper connecting beam 12 are respectively connected with the left and right rear longitudinal beam front section assemblies through the upper beam connecting plates 13, for example, the end of the rear floor upper connecting beam 12 is pressed into the upper beam connecting plates 13, the two upper beam connecting plates 13 are respectively lapped on the left and right rear longitudinal beam front section assemblies, and each connection is fixed by welding;
as shown in fig. 6, the rear underfloor rear cross beam 10Z includes a rear underfloor rear connecting beam 10 and two lower rear cross beam connecting plates 11, the cross section of the rear underfloor rear connecting beam 10 is in a shape of a few characters from the X-axis direction, and the opening faces upward (Z-axis direction), both ends of the rear underfloor rear connecting beam 10 are connected with the left and right rear longitudinal beam front section assemblies through the lower rear cross beam connecting plates 11, for example, the end of the rear underfloor rear connecting beam 10 is pressed into the lower rear cross beam connecting plates 11, the two lower rear cross beam connecting plates 11 are connected below the lap joint of the front end of the longitudinal beam rear section beam and the rear end of the rear longitudinal beam front section beam 7, and each joint is fixed by welding;
as shown in fig. 1 and 2, in the C-pillar reinforcement assembly, the front rear wheel house inner panel reinforcement plate 18, the rear wheel house inner panel rear reinforcement plate 19, the wheel house connection plate upper section 20, and the connection reinforcement 21 are provided, and in the D-pillar reinforcement assembly, the specific connection relationship between the parts of the D-pillar inner panel upper section 23 and the D-pillar inner panel lower section 24 is as follows: the lower part of a front reinforcing plate 18 of a rear wheel cover inner plate is embedded into the upper part of an upper beam connecting plate 13, the lower part of a rear reinforcing plate 19 of the rear wheel cover inner plate is embedded into the upper part of the front reinforcing plate 18 of the rear wheel cover inner plate, the lower part of an upper section 20 of the wheel cover connecting plate is embedded into the upper part of the rear reinforcing plate 19 of the rear wheel cover inner plate, the upper part of the upper section 20 of the wheel cover connecting plate is propped against the middle part of a connecting reinforcing piece 21, the end part of a lower plate 22 of a top cover rear beam is inserted into the connecting, the lower part of the connecting reinforcement 21 is embedded into the upper part of the D-pillar inner plate upper section 23, the lower part of the D-pillar inner plate upper section 23 is embedded into the upper part of the D-pillar inner plate lower section 24, the end part of the rear wall beam 25z is embedded into the lower part of the D-pillar inner plate lower section 24, the lower end of the rear surrounding cross beam 25z is embedded between the mounting structure 4 and the rear end of the rear longitudinal beam rear section assembly, all joints are fixedly connected through welding, and all joints are fixedly connected through welding;
as shown in fig. 1, the back panel cross beam 25z includes a back panel upper cross beam 25 and a back panel 26, the cross sections of the back panel upper cross beam 25 and the back panel 26 are both C-shaped structures from the X-axis direction, and the openings of the back panel upper cross beam 25 and the back panel 26 are oppositely butted;
the cross section of the front mounting seat 28 of the rear auxiliary frame is U-shaped, the front mounting seat is sleeved on the front beam 7 of the rear longitudinal beam from bottom to top along the Z-axis direction to increase the contact area with the front beam 7 of the rear longitudinal beam, the left and right lower rear cross beam connecting plates 11 respectively prop the front mounting seats 28 of the two rear auxiliary frames against the side surface of the front beam 7 of the rear longitudinal beam, and the joints of the three parts are fixed by welding;
as shown in fig. 11, a reinforcing structure may be further provided at the connection between the rear sub-frame front mounting seat 28 and the side longitudinal beam, the reinforcing structure includes a longitudinal beam reinforcing plate 7j and a longitudinal beam supporting plate 7c, for example, the longitudinal beam reinforcing plate 7j and the longitudinal beam supporting plate 7c may be press-inserted between the rear longitudinal beam front section beam 7 and the rear longitudinal beam front section sealing plate 8 from bottom to top, and the longitudinal beam reinforcing plate 7j is located below the longitudinal beam supporting plate 7c, so as to combine with the rear under-floor middle cross beam 14z, thereby further improving the stability of the connection between the rear sub-frame front mounting seat 28 and the rear sub.
In specific application, as shown in fig. 7 and 9, the child seat side mounting bracket 30z includes a side mounting plate 30 and a side hook 31, the left and right sides and the rear side of the side mounting plate 30 are both provided with flanges, the side mounting plate 30 is fixed to the rear longitudinal beam front section sealing plate 8 through the flanges, two tubular reinforcing ribs are formed on the side mounting plate 30, the side hook 31 is a steel bar bending piece with a U-shaped cross section, and the open end of the side hook 31 is inserted into the tubular reinforcing ribs and fixed through welding. For example, the left and right hems of the side mounting plates 30 may extend to the side of the rear side member front section beam 7, ensuring the connection strength of the child seat side mounting bracket 30 z.
In the concrete application, as shown in fig. 7 and 8, the mounting bracket 32z in the child seat comprises a middle mounting plate 32 and a middle hook 33, wherein flanges are arranged around the middle mounting plate 32, the middle mounting plate 32 is fixedly connected with the rear floor 29 through the peripheral flanges in a welding manner, two tubular reinforcing ribs are formed on the middle mounting plate 32, the middle hook 33 is a steel bar bending piece with a U-shaped cross section, and the open end of the middle hook 33 is embedded into the tubular reinforcing ribs and is fixedly connected with the tubular reinforcing ribs in a welding manner.
In a specific application, the diameter of the steel bars constituting the side hooks 31 and the middle hooks 33 may be 6 mm.
In a specific application, as shown in fig. 7, the rear seat anti-disengaging structure 34 has two, the two middle child seat mounting brackets 32z can be located between the two rear seat anti-disengaging structures 34, and the two rear seat anti-disengaging structures 34 can be located between the two side child seat mounting brackets 30 z.
In this embodiment, on the premise of satisfying the strength of the rear side longitudinal beam, the front section assembly of the rear longitudinal beam is formed by rolling parts, the rear section assembly of the rear longitudinal beam is formed by thermoforming parts, the middle connecting beam 14 under the rear floor, the upper connecting beam 12 on the rear floor and the rear connecting beam 10 under the rear floor are all rolling parts, the rolling parts have a high material utilization rate, the waste of steel plate materials is reduced due to the use of a large number of rolling parts, and the middle cross beam connecting plate 15, the upper cross beam connecting plate 13 and the lower rear cross beam connecting plate 11 are formed by thermoforming parts of high-strength plates, such as high-strength steel plates, and are used for satisfying the complex stress conditions. Under the condition of ensuring that the structural strength of the body-in-white meets the requirements, the cost of the rear cabin frame assembly of the vehicle body designed in the way is cheaper than that of a beam joint integrated cold punching structure in the prior art, and the production cost is reduced. Of course, in practical applications, the rear underfloor middle cross member 14z, the rear floor upper cross member 12z, and the rear underfloor rear cross member 10z may be integrally formed stamped parts.
The invention also provides a vehicle, which is provided with the vehicle body rear cabin frame assembly, can enhance the strength, rigidity, modal and other properties of the white vehicle body rear cabin structure, improves the force transmission efficiency of vehicle collision stress and roadblock vibration, and avoids stress concentration, thereby improving the running stability of the vehicle and effectively improving the safety performance of the vehicle body.
According to the vehicle body rear cabin frame assembly and the vehicle provided by the embodiment of the invention, the vehicle body rear cabin frame assembly is optimally designed, so that the following effects are generated:
1. the C-column reinforcing component is arranged on the upper frame assembly at the rear part of the vehicle body to reinforce the C column of the vehicle, so that various stresses generated in the driving process are effectively transmitted to the vehicle body through the C-column reinforcing component to disperse the stress of the lower vehicle body, and excessive deformation caused by concentrated stress of individual areas during collision is avoided, so that the collision safety coefficient of the vehicle is improved;
2. the shock absorber mounting seat plate 27 is connected to the C-pillar reinforcement component, so that the shock absorber mounting seat plate 27, the side longitudinal beam and the C-pillar reinforcement component form a triangle, and the shock from the vibration force of a road barrier when a vehicle runs can be effectively resisted by utilizing the stability of the triangle, so that the running comfort of the vehicle is improved;
3. the D column reinforcing component is arranged to reinforce the D column of the vehicle, and the C column reinforcing component is connected to the D column reinforcing component to form a new force transmission path, so that the collision force can be transmitted and dispersed more conveniently when collision occurs, and the safety of the upper vehicle body structure is ensured;
4. the rear underfloor middle cross beam 14z is connected between the two rear sub-frame front installation seats 28, so that the connection between the sub-frame and the rear sub-frame front installation seats 28 is firmer, and the rear underfloor middle cross beam 14z assembly can be used as a reinforcing structure of the child seat, and the requirements of the strength of the installation point of the child seat can be met without adding other reinforcing parts.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an automobile body rear deck frame assembly, includes the side longeron that the left and right sides set up respectively, its characterized in that still includes two opening C post reinforcement component in opposite directions, two be connected with top cap back end rail hypoplastron between the upper end of C post reinforcement component, two be connected with back floor entablature between the lower extreme of C post reinforcement component, just the both ends of back floor entablature respectively with two the side longeron is connected.
2. The vehicle body rear compartment frame assembly according to claim 1, further comprising shock absorber mounting seat plates respectively disposed at left and right sides, wherein one end of the shock absorber mounting seat plate is connected to the side longitudinal beam, the other end of the shock absorber mounting seat plate is connected to the C-pillar reinforcement member, and the shock absorber mounting seat plate, the side longitudinal beam and the C-pillar reinforcement member are connected to form a triangular structure.
3. A rear body compartment frame assembly according to claim 2, wherein said rear floor upper cross member is located forward of the center of the rear tire of the vehicle, and said C-pillar reinforcement member is inclined toward the rear end of said side member.
4. The vehicle body rear compartment frame assembly according to claim 3, further comprising D-pillar reinforcement members respectively disposed on left and right sides, wherein upper ends of the D-pillar reinforcement members are connected to the C-pillar reinforcement members, lower ends of the D-pillar reinforcement members are connected to a rear wall cross member, and the rear wall cross member is connected to rear ends of the side longitudinal members.
5. The vehicle body rear compartment frame assembly according to claim 4, wherein the C-pillar reinforcement member includes a rear wheel house inner panel front reinforcement plate, a rear wheel house inner panel rear reinforcement plate, a wheel house connection plate upper section and a connection reinforcement member, the D-pillar reinforcement member includes a D-pillar inner panel upper section and a D-pillar inner panel lower section, a lower portion of the rear wheel house inner panel front reinforcement plate is connected to an end portion of the rear floor upper beam, a lower portion of the rear wheel house inner panel rear reinforcement plate is connected to an upper portion of the rear wheel house inner panel front reinforcement plate, a lower portion of the wheel house connection plate upper section is connected to an upper portion of the rear wheel house inner panel rear reinforcement plate, an upper portion of the wheel house connection plate upper section is connected to a middle portion of the connection reinforcement member, an end portion of the roof cover rear beam lower plate is connected to the connection reinforcement member, and a lower portion of the connection reinforcement member is connected to an upper portion of the D-pillar inner panel, the lower part of the upper section of the D column inner plate is connected to the upper part of the lower section of the D column inner plate, and the lower part of the lower section of the D column inner plate is connected to the end part of the rear surrounding beam.
6. The vehicle rear compartment frame assembly of any one of claims 1 to 5, further comprising rear sub-frame front mounting seats respectively provided on the left and right sides, the rear sub-frame front mounting seats being connected to the side members, and a rear underfloor middle cross member being connected between the sub-frame front mounting seats.
7. The vehicle rear compartment frame assembly of claim 6 wherein said rear under floor center rail is located below said rear floor top rail.
8. The rear body compartment frame assembly of claim 7 wherein the rear under-floor center cross member is provided with a rear seat drop-off prevention structure and/or a child seat mounting structure.
9. The rear body compartment frame assembly of claim 7 wherein a rear row seat mounting bracket is attached to said rear floor cross member.
10. A vehicle having a rear body compartment frame assembly according to any one of claims 1 to 9.
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| CN201911208400.0A CN112874637B (en) | 2019-11-30 | 2019-11-30 | Automobile body rear deck frame assembly and vehicle |
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| CN112810700A (en) * | 2019-11-15 | 2021-05-18 | 长城汽车股份有限公司 | Preceding cabin force transmission structure assembly and car |
| CN113386880A (en) * | 2021-06-29 | 2021-09-14 | 上汽通用五菱汽车股份有限公司 | Front suspension mounting structure |
| CN113682379A (en) * | 2021-09-10 | 2021-11-23 | 奇瑞商用车（安徽）有限公司 | Automobile body rear portion skeleton texture |
| CN114162220A (en) * | 2021-11-30 | 2022-03-11 | 江铃汽车股份有限公司 | Body in white and car |
| CN114802470A (en) * | 2022-06-08 | 2022-07-29 | 浙江吉利控股集团有限公司 | Automobile body rear portion assembly and car |
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| CN115180027A (en) * | 2022-08-15 | 2022-10-14 | 浙江吉利控股集团有限公司 | Rear wheel casing additional strengthening, body structure and vehicle |
| CN115230823A (en) * | 2022-07-12 | 2022-10-25 | 岚图汽车科技有限公司 | Automobile rear wheel cover assembly and automobile |
| CN115402424A (en) * | 2022-08-10 | 2022-11-29 | 岚图汽车科技有限公司 | Floor framework assembly, floor assembly and vehicle |
| CN115416759A (en) * | 2022-08-30 | 2022-12-02 | 重庆长安汽车股份有限公司 | Floor structure and vehicle behind platform automobile body |
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| CN114162220A (en) * | 2021-11-30 | 2022-03-11 | 江铃汽车股份有限公司 | Body in white and car |
| CN114954682A (en) * | 2022-06-06 | 2022-08-30 | 浙江吉利控股集团有限公司 | Rear wheel casing skeleton and vehicle of vehicle |
| CN114954682B (en) * | 2022-06-06 | 2023-08-04 | 浙江吉利控股集团有限公司 | Rear wheel cover framework of vehicle and vehicle |
| CN114802470A (en) * | 2022-06-08 | 2022-07-29 | 浙江吉利控股集团有限公司 | Automobile body rear portion assembly and car |
| CN115230823A (en) * | 2022-07-12 | 2022-10-25 | 岚图汽车科技有限公司 | Automobile rear wheel cover assembly and automobile |
| CN115402424B (en) * | 2022-08-10 | 2023-06-06 | 岚图汽车科技有限公司 | Floor skeleton assembly, floor assembly and vehicle |
| CN115402424A (en) * | 2022-08-10 | 2022-11-29 | 岚图汽车科技有限公司 | Floor framework assembly, floor assembly and vehicle |
| CN115180027A (en) * | 2022-08-15 | 2022-10-14 | 浙江吉利控股集团有限公司 | Rear wheel casing additional strengthening, body structure and vehicle |
| CN115180027B (en) * | 2022-08-15 | 2024-07-12 | 浙江吉利控股集团有限公司 | Rear wheel cover reinforcing structure, vehicle body structure and vehicle |
| CN115416759A (en) * | 2022-08-30 | 2022-12-02 | 重庆长安汽车股份有限公司 | Floor structure and vehicle behind platform automobile body |
| CN115416759B (en) * | 2022-08-30 | 2023-11-24 | 重庆长安汽车股份有限公司 | Floor structure behind platform car body and vehicle |
| CN116039771A (en) * | 2023-01-20 | 2023-05-02 | 中国第一汽车股份有限公司 | Vehicle body structure capable of being pulled to external cross beam and vehicle with same |
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Effective date of registration: 20240120 Address after: No. 3009, BYD Road, Pingshan District, Shenzhen, Guangdong 518118 Patentee after: BYD Co.,Ltd. Country or region after: China Patentee after: Changsha Xingchao Automobile Co.,Ltd. Address before: 518118 BYD Road, Pingshan New District, Shenzhen, Guangdong 3009 Patentee before: BYD Co.,Ltd. Country or region before: China |
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