Loadable apron plate structure and automobile

Abstract

The present application belongs to the technical field of automobile parts, and particularly relates to a load-bearing apron plate structure and an automobile. The load-bearing apron plate structure comprises a right side wall welding assembly, an apron plate welding assembly and a left side wall welding assembly, the right side wall welding assembly, the apron plate welding assembly and the left side wall welding assembly are sequentially fixed and connected to form a U-shaped structure, and the U-shaped structure has a U-shaped through cavity. The purpose is to design the structure of the automobile trunk, the second cavity, the first cavity and the third cavity in the right side wall welding assembly, the apron plate welding assembly and the left side wall welding assembly are sequentially communicated to form a U-shaped through cavity, and the load-bearing support on the apron plate welding assembly is combined to improve the load-bearing capacity of the automobile trunk area.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile parts, and particularly relates to a load-bearing apron plate structure and an automobile. BACKGROUND

[0002] The trunk area of an automobile is generally an internal structure of the automobile body and is not exposed to the outside for a long time. When the trunk is used, it is basically used for transporting and storing small items or commonly used living materials. With the development of automobile models with expanded rear space, the storage or transportation of large items in the trunk area has become a new normal.

[0003] With the fashionization and youthification of consumer concepts, consumers have more demands for the space expansion and function expansion of new era automobile products. More and more users have more and more demands for outdoor scenes such as camping, fishing and transporting large items, and the trunk area cannot meet the load-bearing demands. The ordinary apron plate cannot meet the requirements of local load-bearing and impact, and therefore, how to realize a load-bearing apron plate structure has become a problem to be solved. SUMMARY

[0004] The application aims to provide a load-bearing apron plate structure and an automobile. The trunk structure of the automobile is designed. The second cavity, the first cavity and the third cavity in the right side wall welding assembly, the apron plate welding assembly and the left side wall welding assembly are sequentially communicated to form a U-shaped through cavity. In combination with the load-bearing support on the apron plate welding assembly, the load-bearing capacity of the trunk area of the automobile is improved.

[0005] To achieve the above technical purposes, the technical scheme adopted by the application is as follows.

[0006] A load-bearing apron plate structure comprises a right side wall welding assembly, an apron plate welding assembly and a left side wall welding assembly. The right side wall welding assembly, the apron plate welding assembly and the left side wall welding assembly are sequentially fixed and connected to form a U-shaped structure. The U-shaped structure has a U-shaped through cavity.

[0007] Preferably, the apron plate welding assembly comprises an apron plate inner plate welding assembly and an apron plate outer plate welding assembly. The apron plate inner plate welding assembly and the apron plate outer plate welding assembly are fixedly connected, and the apron plate inner plate welding assembly and the apron plate outer plate welding assembly form a first cavity.

[0008] The right side wall welding assembly comprises a right side rear upright column outer plate welding assembly and a right side rear upright column inner plate welding assembly. The right side rear upright column outer plate welding assembly and the right side rear upright column inner plate welding assembly are fixedly connected, and the right side rear upright column outer plate welding assembly and the right side rear upright column inner plate welding assembly form a second cavity.

[0009] The left side surrounding welding assembly comprises a left side rear upright outer plate welding assembly and a left side rear upright inner plate welding assembly, the left side rear upright outer plate welding assembly and the left side rear upright inner plate welding assembly are fixedly connected, and a third cavity is formed between the left side rear upright outer plate welding assembly and the left side rear upright inner plate welding assembly;

[0010] The second cavity, the first cavity and the third cavity are sequentially communicated to form the U-shaped through cavity. In this way, the strength of the U-shaped structure formed by the right side surrounding welding assembly, the surrounding apron plate welding assembly and the left side surrounding welding assembly fixedly connected at one time is improved, and the load capacity of the trunk is improved.

[0011] Preferably, the surrounding apron plate welding assembly is provided with a load-bearing structure, and the load-bearing structure comprises a plurality of load-bearing supports, and the plurality of load-bearing supports are arranged at equal intervals along the length direction of the surrounding apron plate welding assembly. By arranging the load-bearing supports, the load capacity of the trunk of the automobile is further improved.

[0012] Preferably, the load-bearing support is L-shaped, and the load-bearing support is fixedly connected to the surrounding apron plate inner plate welding assembly of the surrounding apron plate welding assembly. In this way, the structure of the load-bearing support is designed, so that the load-bearing support is more convenient to connect under the premise of meeting the strength requirement.

[0013] Preferably, the load-bearing support and the surrounding apron plate inner plate welding assembly are overlapped in a positive Z facade. In this way, the installation of the load-bearing support is facilitated.

[0014] Preferably, the load-bearing support is provided with a reinforcing rib on both sides. In this way, the structural strength of the load-bearing support is facilitated to be enhanced.

[0015] Preferably, the surrounding apron plate outer plate welding assembly comprises a left side rear apron plate inner plate edge segment, a surrounding apron plate inner plate and a right side rear apron plate inner plate edge segment, the left side rear apron plate inner plate edge segment is fixedly connected to the left side of the surrounding apron plate inner plate and fixedly connected to the bottom of the left side rear upright inner plate welding assembly, the right side rear apron plate inner plate edge segment is fixedly connected to the right side of the surrounding apron plate inner plate and fixedly connected to the right side rear upright inner plate welding assembly, and the load-bearing supports are arranged at equal intervals along the length direction of the surrounding apron plate inner plate. In this way, the load-bearing supports are facilitated to be installed on the surrounding apron plate outer plate welding assembly.

[0016] The application also provides an automobile, which comprises an automobile body and the loadable apron plate structure.

[0017] Preferably, the rear floor inner decoration assembly comprises a rear floor inner decoration plate and a rear floor inner decoration plate handle, and the rear floor inner decoration plate handle is fixedly connected to the rear floor inner decoration plate.

[0018] The back door sill assembly comprises a back door sill and a mounting buckle, the mounting buckle is fixedly connected to the back door sill, and the load-bearing support is clamped to the back door sill through the mounting buckle. In this way, the apron plate structure is conveniently connected and installed.

[0019] Preferably, the automobile body is further provided with a rear floor welding assembly, the rear floor welding assembly comprises a left rear floor side plate, a left rear longitudinal beam, a rear floor, a right rear longitudinal beam and a right rear floor side plate, the left rear floor side plate and the right rear floor side plate are fixedly connected to the left and right sides of the rear floor respectively, the left rear floor side plate is fixedly connected to the left rear upright column inner plate welding assembly of the left side apron welding assembly, the right rear floor side plate is fixedly connected to the right rear upright column inner plate welding assembly of the right side apron welding assembly, the left rear longitudinal beam and the right rear longitudinal beam are fixedly connected to the rear side of the rear floor respectively, and the left rear longitudinal beam is fixedly connected to the left rear floor side plate and the right rear longitudinal beam is fixedly connected to the right rear floor side plate. In this way, the U-shaped structure is conveniently connected to the vehicle body.

[0020] The application with the above technical scheme has the following advantages:

[0021] 1. In the scheme, the right side apron welding assembly, the apron plate welding assembly and the left side apron welding assembly are designed, the second cavity, the first cavity and the third cavity in the right side apron welding assembly, the apron plate welding assembly and the left side apron welding assembly are sequentially communicated to form a U-shaped through cavity, which not only meets the requirement of lightweight vehicle body, improves the stress structure and improves the load capacity of the automobile trunk.

[0022] 2. In the scheme, a plurality of load-bearing supports are arranged along the length direction of the apron plate outer plate, a plurality of stress support points are provided, the stress is more uniform when heavy objects are stored in the trunk, and the load capacity is stronger.

[0023] 3、 the scheme, the load-bearing support is set to L type, it is convenient to connect installation, meet the structure strength under the premise, still meet the requirement of automobile light weight. BRIEF DESCRIPTION OF DRAWINGS

[0024] The application can be further illustrated by the non-limiting examples shown in the drawings.

[0025] Figure 1 It is a structure schematic view of an embodiment of the load-bearing apron structure of the application;

[0026] Figure 2 It is a structure schematic view of the right side apron welding assembly of an embodiment of the load-bearing apron structure of the application;

[0027] Figure 3 It is a structure schematic view of the apron welding assembly of an embodiment of the load-bearing apron structure of the application;

[0028] Figure 4 It is a structure schematic view of the apron inner plate welding assembly of an embodiment of the load-bearing apron structure of the application;

[0029] Figure 5 It is a structure schematic view of the apron outer plate welding assembly of an embodiment of the load-bearing apron structure of the application;

[0030] Figure 6 It is a structure schematic view of the left side apron welding assembly of an embodiment of the load-bearing apron structure of the application;

[0031] Figure 7 It is a schematic view of the analysis result of the CAE analysis on the conventional apron;

[0032] Figure 8 It is a schematic view of the analysis result of the CAE analysis on the load-bearing apron structure of the application;

[0033] Figure 9 It is a structure schematic view of the rear luggage box assembly of an embodiment of the automobile of the application;

[0034] Figure 10 It is a structure schematic view of the rear floor inner decoration assembly of an embodiment of the automobile of the application;

[0035] Figure 11 It is a structure schematic view of the back door sill assembly of an embodiment of the automobile of the application;

[0036] Figure 12 It is a structure schematic view of the rear storage box assembly of an embodiment of the automobile of the application;

[0037] Figure 13Structure diagram of a rear floor welding assembly of an automobile embodiment of the present application.

[0038] The main element symbols are explained as follows:

[0039] 1, right side wall welding assembly; 2, apron plate welding assembly; 3, left side wall welding assembly; 4, rear luggage box assembly; 5, rear floor welding assembly; 11, right side wall outer plate; 12, right side rear pillar outer plate welding assembly; 13, right side rear pillar inner plate welding assembly; 21, apron plate inner plate welding assembly; 22, apron plate outer plate welding assembly; 211, left side rear apron plate inner plate edge section; 212, load-bearing support; 213, apron plate inner plate; 214, right side rear apron plate inner plate edge section; 221, apron plate outer plate; 222, rear bumper mounting support; 223, rear bumper middle mounting support; 31, left side wall outer plate; 32, left side rear pillar outer plate welding assembly; 33, left side rear pillar inner plate welding assembly; 41, rear floor interior assembly; 411, rear floor interior plate; 412, rear floor interior plate handle; 42, back door sill assembly; 421, back door sill; 422, mounting buckle; 43, rear storage box assembly; 51, left side rear floor edge plate; 52, left side rear longitudinal beam; 53, rear floor; 54, right side rear longitudinal beam; 55, right side rear floor edge plate. DETAILED DESCRIPTION

[0040] The present application will be described in detail below with reference to the drawings and specific embodiments. It should be noted that similar or identical parts are denoted by the same reference numerals in the drawings or description, and the implementation not shown or described in the drawings is in a form known to those skilled in the art. In addition, the directional terms mentioned in the embodiments, such as "up", "down", "top", "bottom", "left", "right", "front", "back", etc., are only with reference to the direction of the drawings, and are not intended to limit the scope of protection of the present application.

[0041] Embodiment one

[0042] As shown in Figures 1 to 8 , a load-bearing apron plate structure of the present application includes a right side wall welding assembly 1, an apron plate welding assembly 2, and a left side wall welding assembly 3, which are sequentially fixed and connected to form a U-shaped structure, and the U-shaped structure has a U-shaped through cavity inside.

[0043] As shown in Figure 2 , in this embodiment, the right side wall welding assembly 1 includes a right side rear pillar outer plate welding assembly 12 and a right side rear pillar inner plate welding assembly 13, which are fixedly welded together, and a second chamber is formed between the right side rear pillar outer plate welding assembly 12 and the right side rear pillar inner plate welding assembly 13.

[0044] As can be understood, in order to facilitate the installation of the trunk door of the automobile, the right side outer plate welding assembly 12 is welded on the outer side of the right side outer plate 11.

[0045] As shown in Figure 1 and Figure 3 , in this embodiment, the apron plate welding assembly 2 includes an apron plate inner plate welding assembly 21 and an apron plate outer plate welding assembly 22, and the apron plate inner plate welding assembly 21 and the apron plate outer plate welding assembly 22 are welded and fixed between them to form a first cavity between the apron plate inner plate welding assembly 21 and the apron plate outer plate welding assembly 22. The right end of the apron plate inner plate welding assembly 21 is welded and fixed with the bottom end of the right side rear column outer plate welding assembly 12, and the right end of the apron plate outer plate welding assembly 22 is welded with the bottom end of the right side rear column inner plate welding assembly 13, so that the bottom of the second cavity is communicated with the right end of the first cavity.

[0046] As shown in Figure 1 and Figure 6 , the left side welding assembly 3 includes a left side rear column outer plate welding assembly 32 and a left side rear column inner plate welding assembly 33, and the left side rear column outer plate welding assembly 32 and the left side rear column inner plate welding assembly 33 are welded and fixed between them to form a third cavity between the left side rear column outer plate welding assembly 32 and the left side rear column inner plate welding assembly 33. The left end of the apron plate inner plate welding assembly 21 is welded and fixed with the bottom end of the left side rear column outer plate welding assembly 32, and the left end of the apron plate outer plate welding assembly 22 is welded with the bottom end of the left side rear column inner plate welding assembly 33, so that the bottom of the third cavity is communicated with the left end of the first cavity. The second cavity, the first cavity and the third cavity are communicated in sequence to form a U-shaped through cavity. Not only meet the requirements of lightweight vehicle body, improve the stress structure, improve the carrying capacity of the trunk of the automobile.

[0047] As can be understood, in order to facilitate the installation of the trunk door of the automobile, the left side outer plate welding assembly 32 is welded on the outer side of the left side outer plate 31.

[0048] As shown in Figures 3 to 5 , in this embodiment, the apron plate welding assembly 2 is provided with a load-bearing structure, which includes a plurality of load-bearing supports 212, and the load-bearing supports 212 are arranged at equal intervals along the length direction of the apron plate inner plate welding assembly 21. The apron plate inner plate welding assembly 21 includes a left side rear apron plate inner plate edge segment 211, an apron plate inner plate 213 and a right side rear apron plate inner plate edge segment 214 which are welded in sequence, the left side rear apron plate inner plate edge segment 211 is fixedly connected to the left side of the apron plate inner plate 213 and fixedly connected with the bottom of the left side rear column inner plate welding assembly 33, the right side rear apron plate inner plate edge segment 214 is fixedly connected to the right side of the apron plate inner plate 213 and fixedly connected with the right side rear column inner plate welding assembly 13, and the load-bearing supports 212 are arranged at equal intervals along the length direction of the apron plate inner plate.

[0049] It can be understood that the load bearing bracket 212 is arranged at a spacing of 200-300 mm, and the number and arrangement spacing of the load bearing bracket 212 are adjusted according to different specific vehicle models. By arranging a plurality of load bearing brackets 212 along the length direction of the apron outer plate, a plurality of force bearing points are provided, and when heavy objects are stored in the trunk, the force is more uniform, and the load bearing capacity is stronger.

[0050] Further, the load bearing bracket 212 is L-shaped, which is convenient for connection and installation under the premise of meeting the requirements of the vehicle structure. In order to further improve the structural strength of the load bearing bracket 212, a reinforcing rib is fixedly connected to the load bearing bracket 212 on both sides in the form of self-welding or patching.

[0051] In the present embodiment, the L-shaped load bearing bracket 212 is arranged upside down, and the vertical edge of the load bearing bracket 212 is overlapped with the apron inner plate 213 in the positive Z vertical plane. In other embodiments of the present application, the overlapping angle between the vertical edge of the load bearing bracket 212 and the apron inner plate 213 can be within the angle range of -10 degrees to +10 degrees of the positive Z vertical plane, and the most preferred is the positive Z vertical plane overlap. In order to meet the connection strength, when the fixing method between the load bearing bracket 212 and the apron inner plate is welding, more than 4 fixed welding points are required between the load bearing bracket 212 and the apron inner plate, and more than 3 screwing points are required when screwing.

[0052] In the present embodiment, the apron outer plate welding assembly 22 includes the apron outer plate 221, the rear bumper mounting bracket 222 and the rear bumper middle mounting bracket 223 for connection, the rear bumper mounting bracket 222 and the rear bumper middle mounting bracket 223 are respectively welded at the bottom of the apron outer plate, the apron outer plate 221 is provided with a relief hole at equal intervals, and when the apron outer plate welding assembly 22 and the apron inner plate welding assembly 21 are fixedly installed, the load bearing bracket 212 passes through the relief hole on the apron outer plate 221 and is connected with other structures.

[0053] As shown in FIGS. 1, 2 and 3, the apron outer plate 221 is provided with a plurality of load bearing brackets 212 arranged at equal intervals along the length direction of the apron outer plate 221. Figure 7 and Figure 8 As shown in FIGS. 1, 2 and 3, the apron outer plate 221 is provided with a plurality of load bearing brackets 212 arranged at equal intervals along the length direction of the apron outer plate 221.

[0054] Embodiment Two

[0055] As shown in Figures 1 to 13 , the application also provides a car, comprising a car body and a loadable apron plate structure, the loadable apron plate structure comprises a right side apron welding assembly 1, an apron plate welding assembly 2 and a left side apron welding assembly 3, the right side apron welding assembly 1, the apron plate welding assembly 2 and the left side apron welding assembly 3 are sequentially fixed and connected to form a U-shaped structure, and the U-shaped structure has a U-shaped through cavity.

[0056] As shown in Figure 2 , in this embodiment, the right side apron welding assembly 1 comprises a right side rear upright outer plate welding assembly 12 and a right side rear upright inner plate welding assembly 13, and the right side rear upright outer plate welding assembly 12 and the right side rear upright inner plate welding assembly 13 are fixedly welded, and a second cavity is formed between the right side rear upright outer plate welding assembly 12 and the right side rear upright inner plate welding assembly 13.

[0057] Understandably, in order to facilitate the installation of the car trunk door, the right side apron outer plate 11 is welded on the outside of the right side rear upright outer plate welding assembly 12.

[0058] As shown in Figure 1 and Figure 3 , in this embodiment, the apron plate welding assembly 2 comprises an apron plate inner plate welding assembly 21 and an apron plate outer plate welding assembly 22, and the apron plate inner plate welding assembly 21 and the apron plate outer plate welding assembly 22 are fixedly welded, and a first cavity is formed between the apron plate inner plate welding assembly 21 and the apron plate outer plate welding assembly 22. And the right end of the apron plate inner plate welding assembly 21 is fixedly welded with the bottom end of the right side rear upright outer plate welding assembly 12, and the right end of the apron plate outer plate welding assembly 22 is fixedly welded with the bottom end of the right side rear upright inner plate welding assembly 13, so that the bottom of the second cavity and the right end of the first cavity are communicated.

[0059] As shown in Figure 1 and Figure 6 , the left side apron welding assembly 3 comprises a left side rear upright outer plate welding assembly 32 and a left side rear upright inner plate welding assembly 33, and the left side rear upright outer plate welding assembly 32 and the left side rear upright inner plate welding assembly 33 are fixedly welded, and a third cavity is formed between the left side rear upright outer plate welding assembly 32 and the left side rear upright inner plate welding assembly 33. And the left end of the apron plate inner plate welding assembly 21 is fixedly welded with the bottom end of the left side rear upright outer plate welding assembly 32, and the left end of the apron plate outer plate welding assembly 22 is fixedly welded with the bottom end of the left side rear upright inner plate welding assembly 33, so that the bottom of the third cavity and the left end of the first cavity are communicated. The second cavity, the first cavity and the third cavity are sequentially communicated to form a U-shaped through cavity. Not only meet the requirements of lightweight car body, improve the stress structure, improve the carrying capacity of the car trunk.

[0060] Understandably, in order to facilitate the installation of the car's trunk door, a left side panel 31 is welded to the outside of the left rear pillar outer panel welding assembly 32.

[0061] like Figures 3 to 5 As shown, in this embodiment, a load-bearing structure is provided on the apron panel welding assembly 2. The load-bearing structure includes a plurality of load-bearing supports 212, which are equally spaced along the length of the apron panel inner plate welding assembly 21. The apron panel inner plate welding assembly 21 includes a left rear apron panel inner plate edge segment 211, an apron panel inner plate 213, and a right rear apron panel inner plate edge segment 214, which are welded sequentially. The left rear apron panel inner plate edge segment 211 is fixedly connected to the left side of the apron panel inner plate 213 and is fixedly connected to the bottom of the left rear column inner plate welding assembly 33. The right rear apron panel inner plate edge segment 214 is fixedly connected to the right side of the apron panel inner plate 213 and is fixedly connected to the right rear column inner plate welding assembly 13. The load-bearing supports 212 are equally spaced along the length of the apron panel inner plate.

[0062] Understandably, the load-bearing brackets 212 are arranged at intervals of 200mm-300mm. Depending on the specific vehicle model, the number and spacing of the load-bearing brackets 212 are adjusted accordingly. By setting multiple load-bearing brackets 212 along the length of the outer panel of the apron, multiple stress support points are provided, resulting in more even stress distribution and stronger load-bearing capacity when heavy objects are stored in the trunk.

[0063] Furthermore, the load-bearing bracket 212 is L-shaped, which facilitates connection and installation while meeting the vehicle's structural requirements. To further improve the structural strength of the load-bearing bracket 212, reinforcing ribs are fixedly connected to both sides of the load-bearing bracket 212 by self-welding or patching.

[0064] In this embodiment, the load-bearing bracket 212 is arranged in an L-shape inverted position, with its vertical side overlapping the inner panel 213 of the skirt board at a Z-shaped elevation. In other embodiments of this application, the overlap angle between the vertical side of the load-bearing bracket 212 and the inner panel 213 of the skirt board can be within the range of -10 degrees to +10 degrees on the Z-shaped elevation, with the Z-shaped elevation overlap being the most preferred. To meet connection strength requirements, when the load-bearing bracket 212 and the inner panel of the skirt board are fixed by welding, there need to be more than 4 welding points between them; when screwed, there need to be more than 3 screw points.

[0065] In the embodiment, the apron outer plate welding assembly 22 comprises an apron outer plate 221, a rear bumper mounting bracket 222 and a rear bumper middle mounting bracket 223, the rear bumper mounting bracket 222 and the rear bumper middle mounting bracket 223 are welded at the bottom of the apron outer plate respectively, the apron outer plate 221 is provided with escape holes at equal intervals, and the load bearing bracket 212 is connected with other structures through the escape holes of the apron outer plate 221 when the apron outer plate welding assembly 22 is fixedly installed with the apron inner plate welding assembly 21.

[0066] As shown in Figure 1 and Figures 9 to 13 , the automobile body is provided with a rear luggage compartment assembly 4, the rear luggage compartment assembly 4 comprises a rear floor interior assembly 41, a back door sill assembly 42 and a rear storage box assembly 43, the rear floor interior assembly 41 is located behind the apron welding assembly 2 and is fixedly connected with the apron welding assembly 2 through the load bearing bracket 212, the back door sill assembly 42 is fixedly connected below the rear floor interior assembly 41, and the rear storage box assembly 43 is fixedly installed below the back door sill assembly 42.

[0067] The rear floor interior assembly 41 comprises a rear floor interior plate 411 and a rear floor interior plate handle 412, the rear floor interior plate handle 412 is welded on the rear floor interior plate 411; the back door sill assembly 42 comprises a back door sill 421 and a mounting buckle 422, the mounting buckle 422 is fixedly connected on the back door sill 421, the back door sill assembly 42 is fixedly connected below the rear floor interior plate 411, and the horizontal edge of the load bearing bracket 212 is fixedly connected on the back door sill 421 through the mounting buckle 422.

[0068] As shown in Figure 13 , in the embodiment, the automobile body is further provided with a rear floor welding assembly 5, the rear floor welding assembly 5 comprises a left rear floor side plate 51, a left rear longitudinal beam 52, a rear floor 53, a right rear longitudinal beam 54 and a right rear floor side plate 55, the left rear floor side plate 51 and the right rear floor side plate 55 are welded on the left and right sides of the rear floor 53 respectively, the left rear floor side plate 51 is welded with the bottom of the left rear upright inner plate welding assembly 33 of the left apron welding assembly 3, the right rear floor side plate 55 is welded with the bottom of the right rear upright inner plate welding assembly 13 of the right apron welding assembly 1, the left rear longitudinal beam 52 and the left rear floor side plate 51 are fixedly welded, and the right rear longitudinal beam 54 and the right rear floor side plate 55 are fixedly welded. The bottom of the rear storage box assembly 43 is fixedly installed on the rear floor 53 through screwing, and the rear floor 53 is fixedly screwed with the apron inner plate welding assembly 21.

[0069] As shown in Figure 7 and Figure 8As shown, CAE analysis is performed on the automobile with the conventional apron plate and the automobile with the loadable apron plate structure of the application respectively. When a force of 1.5KN (150KG) is applied to the trunk load area of the automobile body with the conventional apron plate, the maximum plastic strain of the rear apron plate is 3.9%, the welding point does not fall off, the maximum plastic strain of the bracket is 27.4%, at which time serious deformation and bending have occurred. At this time, the automobile body cannot meet the consumer's demand for storing or transporting large materials. When a force of 1.5KN (150KG) is applied to the trunk load area of the automobile body with the loadable apron plate structure of the application, the maximum plastic strain of the rear apron plate is 2.1%, the welding point does not fall off, the maximum plastic strain of the bracket is 1.5%, and there is no obvious deformation, the load capacity is strong, and it meets the consumer's demand for storing or transporting large materials.

[0070] The loadable apron plate structure of the application is described in detail above. The description of the specific embodiments is only used to help understand the method of the application and its core idea. It should be noted that for those skilled in the art, without departing from the principles of the application, the application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. An automobile characterized by: The application relates to an automobile body and a load-bearing apron structure. The load-bearing apron structure comprises a right apron welding assembly (1), an apron welding assembly (2) and a left apron welding assembly (3), the right apron welding assembly (1), the apron welding assembly (2) and the left apron welding assembly (3) are sequentially fixedly connected to form a U-shaped structure, and the U-shaped structure has a U-shaped through cavity. The apron welding assembly (2) is provided with a load-bearing structure, the load-bearing structure comprises a plurality of load-bearing supports (212), and the load-bearing supports (212) are arranged at equal intervals along the length direction of the apron welding assembly (2). The automobile body is provided with a rear luggage compartment assembly (4), the rear luggage compartment assembly (4) comprises a rear floor interior assembly (41), a back door sill assembly (42) and a rear storage box assembly (43), the rear floor interior assembly (41) is fixedly connected with the apron welding assembly (2), the back door sill assembly (42) is fixedly installed below the rear floor interior assembly (41), and the rear storage box assembly (43) is fixedly installed below the back door sill assembly (42); the back door sill assembly (42) is fixedly connected with the apron welding assembly (2). The back door sill assembly (42) comprises a back door sill (421) and a mounting buckle (422), the mounting buckle (422) is fixedly connected to the back door sill (421), and the load-bearing support (212) is clamped to the back door sill (421) through the mounting buckle (422).

2. The vehicle of claim 1, wherein: The apron welding assembly (2) comprises an apron inner plate welding assembly (21) and an apron outer plate welding assembly (22), the apron inner plate welding assembly (21) and the apron outer plate welding assembly (22) are fixedly connected, and a first cavity is formed between the apron inner plate welding assembly (21) and the apron outer plate welding assembly (22). The right apron welding assembly (1) comprises a right rear upright column outer plate welding assembly (12) and a right rear upright column inner plate welding assembly (13), the right rear upright column outer plate welding assembly (12) and the right rear upright column inner plate welding assembly (13) are fixedly connected, and a second cavity is formed between the right rear upright column outer plate welding assembly (12) and the right rear upright column inner plate welding assembly (13). The left apron welding assembly (3) comprises a left rear upright column outer plate welding assembly (32) and a left rear upright column inner plate welding assembly (33), the left rear upright column outer plate welding assembly (32) and the left rear upright column inner plate welding assembly (33) are fixedly connected, and a third cavity is formed between the left rear upright column outer plate welding assembly (32) and the left rear upright column inner plate welding assembly (33). The second cavity, the first cavity and the third cavity are sequentially communicated to form the U-shaped through cavity.

3. The vehicle of claim 1, wherein: The load-bearing support (212) is L-shaped, and the load-bearing support (212) is fixedly connected to the apron inner plate welding assembly (21) of the apron welding assembly (2).

4. The vehicle of claim 1, wherein: The load-bearing support (212) is overlapped with the Z positive elevation of the apron inner plate welding assembly (21).

5. A vehicle as claimed in claim 4, characterised in that: The load-bearing support (212) is fixed with the reinforcing ribs on both sides.

6. The vehicle of claim 1, wherein: The apron outer plate welding assembly (22) comprises a left rear apron inner plate edge segment (211), an apron inner plate (213) and a right rear apron inner plate edge segment (214). The left rear apron inner plate edge segment (211) is fixedly connected to the left side of the apron inner plate (213) and fixedly connected with the bottom of the left rear vertical column inner plate welding assembly (33). The right rear apron inner plate edge segment (214) is fixedly connected to the right side of the apron inner plate (213) and fixedly connected with the right rear vertical column inner plate welding assembly (13). The load-bearing supports (212) are arranged at equal intervals along the length direction of the apron inner plate.

7. The vehicle of claim 1, wherein: The rear floor inner trim assembly (41) comprises a rear floor inner trim plate (411) and a rear floor inner trim plate handle (412). The rear floor inner trim plate handle (412) is fixedly connected to the rear floor inner trim plate (411).

8. The vehicle of claim 1, wherein: The automobile body is further provided with a rear floor welding assembly (5). The rear floor welding assembly (5) comprises a left rear floor edge plate (51), a left rear longitudinal beam (52), a rear floor (53), a right rear longitudinal beam (54) and a right rear floor edge plate (55). The left rear floor edge plate (51) and the right rear floor edge plate (55) are fixedly connected to the left and right sides of the rear floor (53), respectively. The left rear floor edge plate (51) is fixedly connected with the left rear vertical column inner plate welding assembly (33) of the left side welding assembly (3). The right rear floor edge plate (55) is fixedly connected with the right rear vertical column inner plate welding assembly (13) of the right side welding assembly (1). The left rear longitudinal beam (52) and the right rear longitudinal beam (54) are fixedly connected to the rear side of the rear floor (53), respectively. The left rear longitudinal beam (52) is fixedly connected with the left rear floor edge plate (51). The right rear longitudinal beam (54) is fixedly connected with the right rear floor edge plate (55).

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