Rear body structure and vehicle

Abstract

The present application relates to the technical field of vehicles, and provides a rear vehicle body structure and a vehicle. The rear vehicle body structure can comprise a rear floor, two rear wheel covers and two rocker panels. The two rear wheel covers are oppositely arranged on the left and right sides of the rear floor and are detachably connected with the rear floor. The two rocker panels are respectively arranged on the left and right sides of the rear floor and are detachably connected with the rear floor. According to the rear vehicle body structure provided in the present application, the corresponding rocker panel and rear wheel cover of the sliding door can be replaced, so that the rear vehicle body structure meets the left and right width requirements of the vehicle body corresponding to the sliding door. The corresponding rocker panel and rear wheel cover of the swing door can be replaced, so that the rear vehicle body structure meets the left and right width requirements of the vehicle body corresponding to the swing door, thereby improving the versatility of the rear vehicle body structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a rear body structure and a vehicle. BACKGROUND

[0002] At present, the manufacturing process of the vehicle body is greatly accelerated in recent years. The integrated forming die-casting process of the rear end of the vehicle body has become a standard configuration of the current medium and high-end vehicles.

[0003] The conventional integrated die-casting vehicle body has a fixed left and right width, and cannot meet the requirements of different vehicle body widths. For example, the design requirements of the vehicle body width for the vehicle with a sliding door and the vehicle with a swing door are different. Therefore, the conventional integrated die-casting vehicle body cannot meet the design requirements of the vehicle body width for the vehicle with a sliding door and the vehicle with a swing door at the same time, and the versatility is poor. SUMMARY

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a rear body structure and a vehicle.

[0005] In a first aspect, the present application provides a rear body structure, which can include: a rear floor; two rear wheel covers, the two rear wheel covers are oppositely arranged on the left and right sides of the rear floor and are detachably connected with the rear floor; and two door sills, the two door sills are respectively located on the left and right sides of the rear floor and are detachably connected with the rear floor.

[0006] In this way, on the one hand, by arranging the two rear wheel covers and the two door sills which are detachably connected with the rear floor, the rear body structure can meet the left and right width requirements of the vehicle body corresponding to the sliding door by replacing the door sill and the rear wheel cover corresponding to the sliding door. The rear body structure can meet the left and right width requirements of the vehicle body corresponding to the swing door by replacing the door sill and the rear wheel cover corresponding to the swing door, thereby improving the versatility of the rear body structure.

[0007] On the other hand, for vehicle models with different height requirements of the rear floor, only the rear floor with different heights needs to be replaced, thereby further improving the versatility of the rear body structure, that is, by assembling and cooperating different specifications of the rear floor, different specifications of the rear wheel cover and different specifications of the door sill, the requirements of different vehicles on the rear body structure can be met.

[0008] On the other hand, by detachably arranging the rear body structure as the rear floor, the rear wheel cover and the door sill, specifically, a rear floor, a plurality of rear wheel covers and a plurality of door sills can be formed by die-casting to adapt to the size requirements of different vehicles, thereby reducing the volume of the integrated structure, improving the success rate of the die-casting process of the die-casting part and reducing the processing difficulty of the die-casting part.

[0009] In some embodiments of the present application, the rear floor comprises a front section made of steel and a rear section made of aluminum, and the first connecting section of the rear section made of aluminum is fixedly connected with the second connecting section of the front section made of steel.

[0010] In some embodiments of the present application, the first connecting section and the second connecting section are arranged in a stacked manner, and glue is filled between the first connecting section and the second connecting section.

[0011] In some embodiments of the present application, the rear body structure further comprises a C-shaped cross beam arranged on the upper surface of the rear floor, and the two ends of the C-shaped cross beam abut against the rear wheel covers on the left and right sides of the rear floor.

[0012] In some embodiments of the present application, the rear body structure further comprises a rear floor cross beam arranged on the lower surface of the rear floor, and the rear floor cross beam extends along the left and right sides of the rear floor.

[0013] In some embodiments of the present application, the number of the rear floor cross beams is multiple, and the multiple rear floor cross beams are arranged in a spaced manner along the vehicle wheelbase direction.

[0014] In some embodiments of the present application, the rear body structure further comprises two longitudinal beams extending along the vehicle wheelbase direction, and the longitudinal beams are arranged at the connecting positions of the rear floor and the rear wheel covers and are connected with the rear floor and the rear wheel covers, respectively.

[0015] In some embodiments of the present application, the rear wheel cover comprises an energy absorption groove recessed from the side surface of the rear wheel cover away from the longitudinal beam to the side surface of the rear wheel cover close to the longitudinal beam, and the energy absorption groove abuts against the longitudinal beam.

[0016] In some embodiments of the present application, the rear wheel cover is bolted with the rear floor, and / or the rocker is bolted with the rear floor.

[0017] In a second aspect, the present application further provides a vehicle, which can comprise the rear body structure and the frame according to any one of the above-mentioned embodiments, and the rear body structure is mounted on the frame.

[0018] The technical effects brought by any one of the design schemes in the second aspect can be referred to the technical effects brought by different design ways in the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

[0021] Figure 1 A schematic view of a rear body structure provided by some embodiments of the present application;

[0022] Figure 2 A side view of the rear body structure shown in FIG. 1; Figure 1

[0023] An enlarged view of A in FIG. 1; Figure 3 Figure 2 A bottom view of the rear body structure shown in FIG. 1.

[0024] Figure 4 Figure 1 A side view of the rear body structure shown in FIG. 1.

[0025] Reference signs:

[0026] 100, rear body structure;

[0027] 110, rear floor; 111, steel front section; 112, aluminum rear section; 1121, first aluminum section; 1122, second aluminum section;

[0028] 120, rear wheelhouse; 121, energy absorption groove; 122, shock absorber mounting hole; 123, spring seat;

[0029] 130, rocker;

[0030] 140, C-ring cross beam;

[0031] 150, rear floor cross beam;

[0032] 160, longitudinal beam; 161, reinforcing rib;

[0033] 170, bolt connection point. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the above-mentioned purposes, features and advantages of the present application, the solutions of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth in order to fully understand the present application, but the present application can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some of the embodiments of the present application, not all the embodiments. ​​

[0036] In the current situation of accelerating vehicle model iteration, consumers' requirements for product performance are increasing, and the manufacturing process of the vehicle body has also been greatly accelerated in recent years. Currently, the integrated die casting process of the vehicle body back end has become a standard for current mid-to-high-end vehicles.

[0037] The conventional integrated die-cast vehicle body has a fixed left and right width, and cannot meet the requirements of vehicles with different body widths. For example, vehicles with sliding doors and vehicles with swing doors have different design requirements for body width. Therefore, the conventional integrated die-cast vehicle body cannot simultaneously meet the design requirements of vehicles with sliding doors and vehicles with swing doors for body width, and has poor versatility.

[0038] For convenience of description, the directions of the vehicle coordinate system are used for illustration below. The X-axis direction of the vehicle coordinate system is the length direction of the vehicle, i.e., the front-rear direction (e.g., the front-rear direction shown in FIG. 1) of the vehicle; the Y-axis direction of the vehicle coordinate system is the width direction of the vehicle, i.e., the left-right direction (e.g., the left-right direction shown in FIG. 1) of the vehicle; and the Z-axis direction of the vehicle coordinate system is the height direction of the vehicle, i.e., the up-down direction (e.g., the up-down direction shown in FIG. 1) of the vehicle. Figure 1 Figure 1 Figure 1

[0039] It should be noted that in some embodiments of the present application, the rear vehicle body structure is integrally die cast, and the rear vehicle body structure generally includes a rear floor, two rear wheel covers, and two rocker panels. The two rear wheel covers are oppositely arranged in the Y-axis direction, and the two rocker panels are oppositely arranged in the Y-axis direction. The rocker panel is located in front of the rear wheel cover, and is used to install a sliding door or a swing door. For a vehicle with a sliding door, the distance between the same-side rocker panel and the rear wheel cover in the Y direction is a first distance, and for a vehicle with a swing door, the distance between the same-side rocker panel and the rear wheel cover in the Y direction is a second distance. In order to meet the installation of the sliding door and the swing door, the first distance and the second distance are not the same.

[0040] Since the rear vehicle body structure is integrally die cast, the first distance and the second distance are not the same, and therefore the rear vehicle body structure in the above embodiments cannot simultaneously meet the size requirements of the vehicle with a sliding door and the vehicle with a swing door.

[0041] To solve the above technical problems, please refer to Figures 1 to 4 The present application also provides a vehicle, which can include a rear vehicle body structure 100 and a vehicle frame. The rear vehicle body structure 100 is installed on the vehicle frame, wherein the two rear wheel covers 120 of the rear vehicle body structure 100 are detachably connected to the rear floor 110, and the two rocker panels 130 are detachably connected to the rear floor 110.

[0042] Specifically, please refer to Figure 3 ​​​The rear floor 110 is provided with a plurality of bolt connection positions 170, the rear wheel cover 120 and the rear floor 110 can be detachably connected through bolt connection, the rear wheel cover 120 and the rear floor 110 can also be detachably connected through clamping, the rocker 130 and the rear floor 110 can be detachably connected through bolt connection, and the rocker 130 and the rear floor 110 can also be detachably connected through clamping.

[0043] It can be understood that, in order to ensure the sealing between the rear wheel cover 120 and the rear floor 110, sealing glue can be applied to the connection position between the rear wheel cover 120 and the rear floor 110 after bolt connection. In order to ensure the sealing between the rocker 130 and the rear floor 110, sealing glue can be applied to the connection position between the rocker 130 and the rear floor 110 after bolt connection.

[0044] In this way, on the one hand, by arranging two rear wheel covers 120 and two rockers 130 which are detachably connected with the rear floor 110, the corresponding rocker 130 and rear wheel cover 120 of the sliding door can be replaced, so that the rear body structure 100 meets the left and right width requirements of the vehicle body corresponding to the sliding door. By replacing the rocker 130 and the rear wheel cover 120 corresponding to the swing door, the rear body structure 100 meets the left and right width requirements of the vehicle body corresponding to the swing door, thereby improving the versatility of the rear body structure 100.

[0045] On the other hand, for vehicle models with different height requirements of the rear floor 110, only the rear floor 110 with different heights needs to be replaced, further improving the versatility of the rear body structure 100, that is, by assembling and cooperating different specifications of the rear floor 110, different specifications of the rear wheel cover 120 and different specifications of the rocker 130, the requirements of different vehicles on the rear body structure 100 are met.

[0046] On the other hand, by detachably arranging the rear body structure 100 as the rear floor 110, the rear wheel cover 120 and the rocker 130, specifically, a plurality of rear floors 110, a plurality of rear wheel covers 120 and a plurality of rockers 130 can be formed by die casting to adapt to the size requirements of different vehicles, the volume of the integrally formed structure can be reduced, the success rate of the die casting process of the die casting part can be improved, and the processing difficulty of the die casting part can be reduced.

[0047] In some embodiments of the present application, please continue to refer to Figure 1 The rear floor 110 can include a steel front section 111 and an aluminum rear section 112, the aluminum rear section 112 is located at the rear side of the steel front section 111, the steel front section 111 includes a first connecting section close to the aluminum rear section 112, the aluminum rear section 112 includes a second connecting section close to the steel front section 111, and the first connecting section and the second connecting section are connected through a connecting structure.

[0048] Specifically, the first connecting section and the second connecting section can be connected by bolt connection, riveting connection, or clamping connection, so as to realize the fixed connection between the copper front section 111 and the aluminum rear section 112.

[0049] It should be noted that, considering the strength, weight and cost of the overall rear body structure 100, the steel front section 111 made of steel material and the aluminum rear section 112 made of aluminum material cannot be connected by welding due to the large difference in melting point between steel material and aluminum material. Therefore, the steel front section 111 and the aluminum rear section are connected by the connecting structure.

[0050] Further, in order to ensure the sealing between the steel front section 111 and the aluminum rear section 112, the first connecting section and the second connecting section are stacked, and glue is filled between the first connecting section and the second connecting section.

[0051] Please refer to Figure 1 , in order to reduce the processing difficulty of the aluminum rear section 112, the aluminum rear section 112 can be divided into a first aluminum section 1121 and a second aluminum section 1122, the first aluminum section 1121 and the second aluminum section 1122 are arranged in sequence in the front-rear direction, and the first aluminum section 1121 and the second aluminum section 1122 are connected by welding, specifically, the first aluminum section 1121 and the second aluminum section 1122 can be connected by spot welding.

[0052] It can be understood that, in order to ensure the sealing between the first aluminum section 1121 and the second aluminum section 1122, glue can also be filled at the connection position of the first aluminum section 1121 and the second aluminum section 1122.

[0053] In some embodiments of the present application, please refer to Figure 1 , the rear body structure 100 can further include a C-ring cross beam 140, which is a cross beam cooperating with the C-pillar of the vehicle. The C-ring cross beam 140 is arranged on the upper surface of the rear floor 110, and extends along the left-right direction. One end of the C-ring cross beam 140 abuts against one of the rear wheel covers 120, and the other end abuts against the other rear wheel cover 120. Thus, by arranging the C-ring cross beam 140, the rear body structure 100 can be supported in the left-right direction, thereby improving the structural strength of the rear body structure 100 in the left-right direction.

[0054] On the other hand, it can be understood that arranging the C-ring cross beam 140 on the upper surface of the rear floor 110 can increase the height of the rear floor 110, thereby meeting the design requirements of some vehicles for high floors.

[0055] In some embodiments of the present application, please refer to Figure 2The rear body structure 100 can further include a rear floor cross beam 150 arranged on the lower surface of the rear floor 110, the rear floor cross beam 150 extending in the left-right direction. By arranging the rear floor cross beam 150, the structural strength of the rear body structure 100 in the left-right direction can be improved, and thus the overall structural strength of the vehicle can be improved.

[0056] Further, the number of the rear floor cross beams 150 is multiple, and the multiple rear floor cross beams 150 are arranged in the vehicle wheelbase direction (i.e., the front-rear direction shown in FIG. 1) at intervals, further improving the structural strength of the rear body structure 100. Figure 1

[0057] Specifically, please refer to Figure 2 The number of the rear floor cross beams 150 is three.

[0058] Among them, the specific number and position of the rear floor cross beam 150 can be arranged according to the design requirements of the vehicle to meet the installation space and strength requirements of the vehicle fuel tank, and for new energy or hybrid vehicle models, the position of the battery also needs to be considered for setting.

[0059] In some embodiments of the present application, please refer to Figure 1 and Figure 4 The rear body structure 100 can further include two longitudinal beams 160 extending in the vehicle wheelbase direction, the longitudinal beams 160 being located at the connection position of the rear floor 110 and the rear wheel cover 120 and being connected with the rear floor 110 and the rear wheel cover 120 respectively. Thus, by arranging the longitudinal beams 160 on the rear floor 110, the structural strength of the rear body structure 100 in the front-rear direction is improved.

[0060] Among them, the inside of the longitudinal beam 160 can also be provided with multiple reinforcing ribs 161, by arranging the reinforcing ribs 161, the structural strength of the longitudinal beam 160 is further improved, and thus the structural strength of the rear body structure 100 is improved.

[0061] Specifically, the two longitudinal beams 160 are respectively located at the left and right side edges of the rear floor 110, the longitudinal beams 160 are connected with the rear floor 110 by welding, and the longitudinal beams 160 are detachably connected with the rear wheel cover 120.

[0062] In some embodiments of the present application, please continue to refer to Figure 1 and Figure 4 ​The rear wheel cover 120 can include an energy absorption groove 121 recessed from a side surface of the rear wheel cover 120 away from the longitudinal beam 160 to a side surface close to the longitudinal beam 160, and the energy absorption groove 121 is in abutment with the longitudinal beam 160. In this way, the energy absorption groove 121 can improve the anti-collision capability of the rear wheel cover 120 and the energy absorption effect during vehicle operation, and improve the stability during vehicle travel. In addition, the energy absorption groove 121 is in abutment with the longitudinal beam 160, and when the rear wheel cover 120 is subjected to a collision, the energy absorption groove 121 can transmit the force to the longitudinal beam 160, further improving the anti-collision capability of the rear wheel cover 120 and the stability during vehicle travel.

[0063] Specifically, please refer to Figure 2 and Figure 4 The rear wheel cover 120 is also provided with a spring seat 123 and a shock absorber mounting hole 122, wherein the spring seat 123 is a chassis mounting point, and the shock absorber mounting hole 122 is used to install a shock absorber. During vehicle travel, vibrations from the vehicle chassis and the wheels are transmitted to the rear wheel cover 120, the energy absorption groove 121 of the rear wheel cover 120 deforms to absorb part of the energy, and then transmits the force to the longitudinal beam 160, thereby achieving a good force relief effect and ensuring the stability of the entire rear body structure 100.

[0064] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0065] The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0066] In the description of the embodiments of the present application, the term "and / or" means and covers any and all possible combinations of one or more of the listed items associated therewith. The term "and / or" is a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0067] In the description of the embodiments of the present application, it should be noted that unless specifically defined otherwise, the terms "mounting", "connected", "connecting" should be construed broadly, for example, "connecting" can be removable connection, or non-removable connection; can be direct connection, or indirect connection through intermediate medium. Among them, "fixedly connected" refers to the relative position relationship between the connection and the connection is not changed. In addition, the orientation language mentioned in the embodiments of the present application, such as "inner", "outer" and the like, is only the direction of the drawing, therefore, the orientation language used is to better, more clearly illustrate and understand the embodiments of the present application, and is not indicative or implied that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0068] In the description of the embodiments of the present application, the terms "including", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0069] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rear body structure, characterized by comprising: The rear floor; Two rear wheel covers, the two rear wheel covers are oppositely arranged on the left and right sides of the rear floor and are detachably connected with the rear floor; Two rocker panels, the two rocker panels are respectively located on the left and right sides of the rear floor and are detachably connected with the rear floor; Two longitudinal beams, the longitudinal beams extend along the vehicle wheelbase direction, the longitudinal beams are arranged at the connection positions of the rear floor and the rear wheel covers, and the longitudinal beams are detachably connected with the rear wheel covers. The rear floor comprises:

2. The rear body structure according to claim 1, characterized by A steel front section and an aluminum rear section, and a first connecting section of the aluminum rear section is fixedly connected with a second connecting section of the steel front section.

3. The rear body structure according to claim 2, wherein The first connecting section and the second connecting section are arranged in a stacked manner, and glue is filled between the first connecting section and the second connecting section. Further comprising:

4. The rear body structure according to claim 1, characterized by A C-ring cross beam, the C-ring cross beam is arranged on the upper surface of the rear floor, and the two ends of the C-ring cross beam respectively abut against the rear wheel covers located on the left and right sides of the rear floor. Further comprising:

5. The rear body structure according to claim 1, characterized by A rear floor cross beam, the rear floor cross beam is arranged on the lower surface of the rear floor, and the rear floor cross beam extends along the left and right sides of the rear floor. The number of the rear floor cross beams is multiple, and the multiple rear floor cross beams are arranged in the vehicle wheelbase direction.

6. The rear body structure according to claim 5, characterized by Further comprising:

7. The rear body structure according to claim 1, characterized by Two longitudinal beams, the longitudinal beams extend along the vehicle wheelbase direction, the longitudinal beams are located at the connection positions of the rear floor and the rear wheel covers, and the longitudinal beams are respectively connected with the rear floor and the rear wheel covers. The rear wheel cover comprises an energy absorption groove, the energy absorption groove is recessed from the side surface of the rear wheel cover away from the longitudinal beam to the side surface of the rear wheel cover close to the longitudinal beam, and the energy absorption groove abuts against the longitudinal beam.

8. The rear body structure according to claim 7, characterized by The rear wheel cover is bolted with the rear floor; 9. The rear body structure according to claim 1, characterized by And / or, the rocker panel is bolted with the rear floor. The rear body structure according to any one of claims 1-9; 10. A vehicle characterized by comprising: A vehicle frame, the rear body structure is mounted on the vehicle frame. ​ ​

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