Rear vehicle body structure and vehicle

Abstract

The invention relates to the technical field of vehicles, and provides a rear vehicle body structure and a vehicle. The rear vehicle structure can comprise a rear floor, two rear wheel covers and two thresholds, and the two rear wheel covers are oppositely arranged on the left side and the right side of the rear floor and detachably connected with the rear floor; the two thresholds are located on the left side and the right side of the rear floor correspondingly and detachably connected with the rear floor. According to the rear vehicle body structure provided by the embodiment, the threshold and the rear wheel cover corresponding to the sliding door can be replaced, so that the rear vehicle body structure meets the vehicle body left-right width requirement corresponding to the sliding door. By replacing the doorsill and the rear wheel cover corresponding to the swing door, the rear vehicle body structure meets the vehicle body left-right width requirement corresponding to the swing door, and then the universality of the rear vehicle body structure is improved.

Description

Technical Field

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

[0002] As the iteration of car models accelerates, consumers are increasingly demanding product quality, and the manufacturing process of car bodies has also greatly accelerated the pace of updates in recent years. Currently, the one-piece die-casting process of the rear end of the car body has become the standard for current mid-to-high-end models.

[0003] Conventional one-piece die-cast bodies have fixed left and right widths 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, conventional one-piece die-cast bodies cannot meet the design requirements of both vehicles with sliding doors and vehicles with swing doors, and have poor versatility. Summary of the invention

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

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

[0006] In this way, on the one hand, by providing two rear wheel covers and two door sills detachably connected to the rear floor, the door sills and rear wheel covers corresponding to the sliding door can be replaced, so that the rear body structure meets the left and right width requirements of the body corresponding to the sliding door. By replacing the door sills and rear wheel covers corresponding to the swing door, the rear body structure meets the left and right width requirements of the body corresponding to the swing door, thereby improving the versatility of the rear body structure.

[0007] On the other hand, for models with different rear floor height requirements, it is only necessary to replace the rear floors of different heights, thereby further improving the versatility of the rear body structure. That is, through the assembly and coordination of rear floors of different specifications, rear wheel covers of different specifications and door sills of different specifications, the requirements of the rear body structure for different vehicles can be met.

[0008] On the other hand, by making the rear body structure detachable into a rear floor, rear wheel cover and door sills, specifically, one type of rear floor, multiple types of rear wheel covers and multiple types of door sills can be die-cast to meet the size requirements of different vehicles, thereby reducing the volume of the one-piece molding structure, improving the success rate of the die-casting process of the die-casting parts, and reducing the difficulty of processing the die-casting parts.

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

[0010] In some embodiments of the present application, the first connecting segment and the second connecting segment are stacked, and glue is filled between the first connecting segment and the second connecting segment.

[0011] In some embodiments of the present application, the rear vehicle body structure further includes: a C-ring crossbeam, wherein the C-ring crossbeam is disposed on the upper surface of the rear floor, and the two ends of the C-ring crossbeam respectively abut the rear wheel housings located on the left and right sides of the rear floor.

[0012] In some embodiments of the present application, the rear vehicle body structure further includes: a rear floor cross beam, wherein the rear floor cross beam is disposed on a lower surface of the rear floor, and the rear floor cross beam extends along left and right sides of the rear floor.

[0013] In some embodiments of the present application, there are multiple rear floor cross beams, and the multiple rear floor cross beams are arranged at intervals along the vehicle wheelbase direction.

[0014] In some embodiments of the present application, the rear vehicle body structure further includes: two longitudinal beams, which extend along the vehicle wheelbase direction, and are located at the connection position between the rear floor and the rear wheel cover, and are respectively connected to the rear floor and the rear wheel cover.

[0015] In some embodiments of the present application, the rear wheel cover includes: an energy absorption groove, which is recessed from a side surface of the rear wheel cover away from the longitudinal beam toward a side surface 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 connected to the rear floor bolts; and / or the door sill is connected to the rear floor bolts.

[0017] In a second aspect, the present application also provides a vehicle, which may include the rear body structure and frame described in any of the above schemes, and the rear body structure is installed on the frame.

[0018] Among them, the technical effects brought about by any design scheme in the second aspect can refer to the technical effects brought about by different design methods in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 A schematic diagram of a rear vehicle body structure provided for some embodiments of the present application;

[0022] Figure 2 for Figure 1 A bottom view of the rear body structure shown in ;

[0023] Figure 3 for Figure 2 The enlarged view of point A in the middle;

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

[0025] Reference numerals:

[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 wheel cover; 121, energy absorption groove; 122, shock absorber mounting hole; 123, spring seat;

[0029] 130. Threshold;

[0030] 140, C-ring beam;

[0031] 150, rear floor beam;

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

[0033] 170. Bolt connection points. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that the embodiments of the present invention 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 to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0036] As the iteration of car models accelerates, consumers are increasingly demanding product quality, and the manufacturing process of car bodies has also greatly accelerated the pace of updates in recent years. Currently, the one-piece die-casting process of the rear end of the car body has become the standard for current mid-to-high-end models.

[0037] Conventional one-piece die-cast bodies have fixed left and right widths 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, conventional one-piece die-cast bodies cannot meet the design requirements of both vehicles with sliding doors and vehicles with swing doors, and have poor versatility.

[0038] For the convenience of description, the following description is based on the direction of the vehicle coordinate system. The X-axis direction of the vehicle coordinate system is the length direction of the vehicle, that is, the front and rear direction of the vehicle (for example, Figure 1 The Y-axis direction of the vehicle coordinate system is the width direction of the vehicle, that is, the left and right direction of the vehicle (for example Figure 1 The Z-axis direction of the vehicle coordinate system is the height direction of the vehicle, that is, the up and down direction of the vehicle (for example Figure 1 up and down directions as shown in ).

[0039] It should be noted that, in some embodiments of the present application, the rear body structure is formed by integral die-casting, and the rear body structure may generally include a rear floor, two rear wheel covers and two door sills. The two rear wheel covers are arranged opposite to each other in the Y-axis direction, and the two door sills are arranged opposite to each other in the Y-axis direction. The door sills are located in front of the rear wheel covers, and the door sills are used to install sliding doors or swing doors. For vehicles with sliding doors, the distance between the door sill on the same side and the rear wheel cover in the Y direction is a first distance. For vehicles with swing doors, the distance between the door sill on the same side and the rear wheel cover in the Y direction is a second distance. In order to meet the installation requirements of sliding doors and swing doors, the first distance is different from the second distance.

[0040] Since the rear body structure is integrally die-cast, the first distance is different from the second distance. Therefore, the rear body structure in the above embodiment cannot simultaneously meet the size requirements of the rear body structure for vehicles with sliding doors and vehicles with swing doors.

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

[0042] For details, please refer to Figure 3The rear floor 110 is provided with a plurality of bolt connection points 170, the rear wheel cover 120 and the rear floor 110 can be detachably connected by bolt connection, the rear wheel cover 120 and the rear floor 110 can also be detachably connected by snap connection, the door sill 130 and the rear floor 110 can be detachably connected by bolt connection, the door sill 130 and the rear floor 110 can also be detachably connected by snap connection.

[0043] It is understood that, in order to ensure the sealing between the rear wheel housing 120 and the rear floor 110, a sealant may be applied to the connection between the rear wheel housing 120 and the rear floor 110 after the rear wheel housing 120 and the rear floor 110 are bolted together. In order to ensure the sealing between the door sill 130 and the rear floor 110, a sealant may be applied to the connection between the door sill 130 and the rear floor 110 after the door sill 130 and the rear floor 110 are bolted together.

[0044] In this way, on the one hand, by providing two rear wheel covers 120 and two door sills 130 detachably connected to the rear floor 110, the door sills 130 and rear wheel covers 120 corresponding to the sliding door can be replaced, so that the rear body structure 100 meets the left and right width requirements of the body corresponding to the sliding door. By replacing the door sills 130 and rear wheel covers 120 corresponding to the swing door, the rear body structure 100 meets the left and right width requirements of the 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 for the rear floor 110, it is only necessary to replace the rear floor 110 of different heights, thereby further improving the versatility of the rear body structure 100, that is, through the assembly and cooperation between rear floors 110 of different specifications, rear wheel covers 120 of different specifications and door sills 130 of different specifications, the requirements of different vehicles for the rear body structure 100 are met.

[0046] On the other hand, by making the rear body structure 100 detachable into the rear floor 110, the rear wheel cover 120 and the door sill 130, specifically, a variety of rear floors 110, a variety of rear wheel covers 120 and a variety of door sills 130 can be die-cast to meet the size requirements of different vehicles, which can reduce the volume of the one-piece molding structure, improve the success rate of the die-casting process of the die-casting parts, and reduce the processing difficulty of the die-casting parts.

[0047] In some embodiments of this application, please continue to refer to Figure 1 The rear floor 110 may 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 is connected to the second connecting section via a connecting structure.

[0048] Specifically, the first connecting section and the second connecting section may be connected by bolts, riveting, or snapping to achieve a fixed connection between the copper front section 111 and the aluminum rear section 112 .

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

[0050] Furthermore, 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 continue to read Figure 1 In order to reduce the processing difficulty of the aluminum rear section 112, the aluminum rear section 112 can be grouped 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 sequentially in the front-to-back direction. 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 is understandable that, in order to ensure the sealing between the first aluminum segment 1121 and the second aluminum segment 1122 , glue may be filled at the connection position between the first aluminum segment 1121 and the second aluminum segment 1122 .

[0053] In some embodiments of this application, please continue to refer to Figure 1 The rear body structure 100 may further include a C-ring crossbeam 140. As the name implies, the C-ring crossbeam 140 is a crossbeam that cooperates with the C-pillar of the vehicle. The C-ring crossbeam 140 is disposed on the upper surface of the rear floor 110. The C-ring crossbeam 140 extends in the left-right direction. One end of the C-ring crossbeam 140 abuts against one of the rear wheel housings 120, and the other end abuts against the other rear wheel housing 120. Therefore, by providing the C-ring crossbeam 140, support can be provided for the rear body structure 100 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 is understandable that by arranging the C-ring crossbeam 140 on the upper surface of the rear floor 110 , the height of the rear floor 110 can be increased, thereby meeting the design requirements of some vehicles for a high floor.

[0055] In some embodiments of this application, please refer to Figure 2The rear body structure 100 may further include a rear floor cross member 150, which is disposed on the lower surface of the rear floor 110 and extends in the left-right direction. The rear floor cross member 150 may improve the structural strength of the rear body structure 100 in the left-right direction, thereby improving the structural strength of the entire vehicle.

[0056] Furthermore, there are multiple rear floor cross beams 150, and the multiple rear floor cross beams 150 are arranged along the vehicle wheelbase direction (i.e. Figure 1 The rear vehicle body structure 100 is spaced apart in the front-rear direction as shown in the figure, thereby further improving the structural strength of the rear vehicle body structure 100.

[0057] For details, please refer to Figure 2 , the number of the rear floor cross members 150 is 3.

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

[0059] In some embodiments of this application, please refer to Figure 1 and Figure 4 The rear body structure 100 may further include two longitudinal beams 160, which extend along the wheelbase of the vehicle, are located at the connection position between the rear floor 110 and the rear wheel housing 120, and are respectively connected to the rear floor 110 and the rear wheel housing 120. Therefore, 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] A plurality of reinforcing ribs 161 may be provided inside the longitudinal beam 160 . By providing the reinforcing ribs 161 , the structural strength of the longitudinal beam 160 is further enhanced, thereby further enhancing the structural strength of the rear vehicle body structure 100 .

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

[0062] In some embodiments of this application, please continue to refer to Figure 1 and Figure 4The rear wheel cover 120 may include an energy absorbing groove 121, which is recessed from a side surface of the rear wheel cover 120 away from the longitudinal beam 160 toward a side surface close to the longitudinal beam 160, and the energy absorbing groove 121 abuts against the longitudinal beam 160. In this way, by setting the energy absorbing groove 121, the anti-collision ability of the rear wheel cover 120 and the energy absorption effect during the operation of the vehicle can be improved, and the stability of the vehicle during the travel can be improved. At the same time, the energy absorbing groove 121 abuts against the longitudinal beam 160. When the rear wheel cover 120 is collided, the energy absorbing groove 121 can transfer the energy to the longitudinal beam 160, thereby further improving the anti-collision ability of the rear wheel cover 120 and the stability of the vehicle during the travel.

[0063] For details, please refer to Figure 2 and Figure 4 A spring seat 123 and a shock absorber mounting hole 122 are also provided on the rear wheel cover 120, wherein the spring seat 123 is a chassis mounting point, and the shock absorber mounting hole 122 is used to install the shock absorber. When the vehicle is moving, the vibration from the vehicle chassis and wheels will be transmitted to the rear wheel cover 120, and the energy absorption groove 121 of the rear wheel cover 120 will deform, absorb part of the energy, and then transmit the force to the longitudinal beam 160, thereby achieving a good force unloading effect and ensuring the stability of the entire rear body structure 100.

[0064] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as "center", "up", "down", "front", "back", "bottom", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0065] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0066] In the description of the embodiments of the present invention, the term "and / or" refers to and covers any and all possible combinations of one or more of the associated listed items. The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0067] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. In addition, the directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0068] In the description of the embodiments of the present invention, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

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

Claims

1. A rear vehicle body structure, characterized in that: include: rear floor; Two rear wheel covers, which are arranged on the left and right sides of the rear floor relative to each other and are detachably connected to the rear floor; Two thresholds are respectively located on the left and right sides of the rear floor and are detachably connected to the rear floor.

2. The rear vehicle body structure according to claim 1, characterized in that: The rear floor comprises: A steel front section and an aluminum rear section, wherein the first connecting section of the aluminum rear section is fixedly connected to the second connecting section of the steel front section.

3. The rear vehicle body structure according to claim 2, characterized in that: 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.

4. The rear vehicle body structure according to claim 1, characterized in that: Also includes: A C-ring crossbeam is arranged on the upper surface of the rear floor, and two ends of the C-ring crossbeam respectively abut against the rear wheel housings located on the left and right sides of the rear floor.

5. The rear vehicle body structure according to claim 1, characterized in that: Also includes: A rear floor cross beam is arranged on the lower surface of the rear floor and extends along the left and right sides of the rear floor.

6. The rear vehicle body structure according to claim 5, characterized in that: There are multiple rear floor cross beams, and the multiple rear floor cross beams are arranged at intervals along the vehicle wheelbase direction.

7. The rear vehicle body structure according to claim 1, characterized in that: Also includes: Two longitudinal beams, the longitudinal beams extend along the vehicle wheelbase direction, the longitudinal beams are located at the connection position between the rear floor and the rear wheel cover, and are respectively connected to the rear floor and the rear wheel cover.

8. The rear vehicle body structure according to claim 7, characterized in that: The rear wheel cover comprises an energy absorbing groove, which is recessed from a side surface of the rear wheel cover away from the longitudinal beam toward a side surface close to the longitudinal beam, and the energy absorbing groove abuts against the longitudinal beam.

9. The rear vehicle body structure according to claim 1, characterized in that: The rear wheel cover is connected to the rear floor bolts; And / or, the door sill is bolted to the rear floor.

10. A vehicle, characterized in that: include: The rear vehicle body structure according to any one of claims 1 to 9; A vehicle frame, wherein the rear vehicle body structure is mounted on the vehicle frame.

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