Rear floor structure and automobile

Abstract

The application relates to a rear floor structure and an automobile, and relates to the technical field of automobile bodies. The rear floor structure comprises a sheet metal part and a cross beam. The sheet metal part comprises a front flat section, a sunken section, a raised section and a rear half section. The rear end of the front flat section is connected to the front end of the sunken section through a first connecting plate. The rear end of the sunken section is connected to the front end of the raised section. The rear end of the raised section is connected to the front end of the rear half section. The cross beam is arranged at the connection between the rear half section and the raised section and is used for supporting the sheet metal part. In the direction perpendicular to the plane of the front flat section, the sheet metal part is formed with a groove, and the bottom of the groove is the sunken section. The front flat section, the first connecting plate and the sunken section are connected to form a Z-shaped structure. Thus, the height of the sunken section of the sheet metal part is reduced, the space from the sunken section to the roof is increased, the activity space of the rear row is widened, and the ride comfort of the rear row is improved.

Description

TECHNICAL FIELD

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

[0002] With the rapid development of automobile industry, the automobile has become one of the indispensable means of transportation for people. The automobile ownership increases year by year, and more and more people have private cars. The popularity of automobiles brings development to the manufacturing and design of automobile parts.

[0003] The rear floor structure is one of the important components of the automobile body. The height of the rear floor structure is consistent with that of the front floor. This structure makes the height from the rear floor structure to the roof consistent with that of the front floor, and the leg movement space of the rear passengers is small, and the comfort of the passengers is poor. SUMMARY

[0004] The present application provides a rear floor structure and an automobile to at least solve the technical problem of small space from the rear floor to the roof in the related art. The technical scheme of the present application is as follows:

[0005] According to the first aspect of the present application, a rear floor structure is provided, comprising a sheet metal part and a cross beam. The sheet metal part comprises a front flat section, a sunken section, a rising section and a rear half section. The rear end of the front flat section is connected to the front end of the sunken section through a first connecting plate, the rear end of the sunken section is connected to the front end of the rising section, and the rear end of the rising section is connected to the front end of the rear half section. The cross beam is arranged at the connection between the rear half section and the rising section and is used to support the sheet metal part. The sheet metal part forms a groove in the direction perpendicular to the plane of the front flat section. The bottom of the groove is the sunken section. The front flat section, the first connecting plate and the sunken section form a "Z" shaped structure.

[0006] According to the above technical means, the present application can add a groove, increase the height from the rear floor structure to the roof, increase the leg movement space of the rear passengers, and improve the comfort of the passengers.

[0007] In a possible implementation, the front flat section is provided with at least one first reinforcing rib, and the extension direction of the first reinforcing rib is the direction of the front flat section close to the rising section. The sunken section is provided with at least one second reinforcing rib, and the extension direction of the second reinforcing rib is parallel to the extension direction of the first reinforcing rib.

[0008] According to the above technical means, the strength of the sheet metal part can be improved.

[0009] In some possible implementations, the rear floor structure further comprises a reinforcing longitudinal beam, and the reinforcing longitudinal beam is arranged in the middle part of the sheet metal part. The cross section of the middle part of the sheet metal part is in the shape of "J".

[0010] According to the above technical means, the reinforcing longitudinal beam is added to improve the overall strength and rigidity of the entire rear floor structure.

[0011] In some possible implementation manners, the first reinforcing ribs are symmetrically distributed with respect to the reinforcing longitudinal beam on both sides of the reinforcing longitudinal beam, and / or the second reinforcing ribs are symmetrically distributed with respect to the reinforcing longitudinal beam.

[0012] According to the technical means, the preparation process of the reinforcing ribs on the sheet metal part is simplified, the reinforcing ribs are arranged on both sides of the sheet metal part, and the strength of the sheet metal part is further improved.

[0013] In some possible implementation manners, the reinforcing longitudinal beam is provided with a third reinforcing rib, and the extending direction of the third reinforcing rib is perpendicular to the extending direction of the first reinforcing rib.

[0014] According to the technical means, the strength of the reinforcing longitudinal beam can be improved. Since the extending direction of the third reinforcing rib is perpendicular to the extending direction of the first reinforcing rib, the third reinforcing rib and the first reinforcing rib further strengthen the strength of the sheet metal part from two directions.

[0015] In some possible implementation manners, the rear floor structure further comprises a first side wall and a second side wall, the first side wall is connected to one side of the sunken section, the second side wall is connected to the other side of the sunken section, at least one of the first side wall and the second side wall is provided with a fourth reinforcing rib, and the extending direction of the fourth reinforcing rib is the height direction of the first side wall or the second side wall.

[0016] According to the technical means, the strength and formability of the sheet metal part can be improved.

[0017] In some possible implementation manners, the sheet metal part is provided with an energy-absorbing rib, one end of the energy-absorbing rib is flush with the front end of the front flat section, and the other end extends into the front flat section.

[0018] According to the technical means, the strength of the sheet metal part can be further improved, and the parts of the sheet metal part can be prevented from being broken.

[0019] In some possible implementation manners, the sheet metal part is an integrally formed structure.

[0020] According to the technical means, the production process of the sheet metal part can be simplified.

[0021] In some possible implementation manners, the rear floor structure further comprises at least one seat support, a seat support plate and at least one anti-submersion support. The at least one seat support is arranged on the cross beam, the seat support plate is arranged on the rear half section, the at least one anti-submersion support is arranged on one side of the seat support plate, and the anti-submersion support corresponds to the seat support one by one.

[0022] According to the technical means, the installation strength of the seat can be ensured, the seat support plate is arranged on the rear half section, the strength of the rear half section is improved, and the skeleton cost of the seat is reduced.

[0023] According to a second aspect, the application provides an automobile comprising the rear floor structure according to any one of the above embodiments.

[0024] Therefore, the above technical features of the application have the following beneficial effects: the height of the sinking section of the sheet metal part is reduced, the space from the sinking section to the roof is increased, the activity space of the rear row is widened, and the comfort of the rear row passengers is improved.

[0025] It should be noted that the technical effects brought by any one of the implementation manners of the second aspect can refer to the technical effects brought by any one of the rear floor structures of the first aspect, which will not be repeated here.

[0026] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application, and do not limit the application.

[0028] Figure 1 is a structural diagram of a rear floor structure according to an exemplary embodiment;

[0029] Figure 2 is a structural diagram of a sheet metal part according to an exemplary embodiment. DETAILED DESCRIPTION

[0030] In order for those skilled in the art to better understand the technical solutions of the application, the technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the application and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the application. On the contrary, they are only examples of devices and methods consistent with some aspects of the application as detailed in the appended claims.

[0032] In the related art, the height of the rear floor structure is consistent with that of the front floor. This structure makes the height of the rear floor structure to the roof consistent with that of the front floor, the activity space of the legs of the rear row passengers is small, and the comfort of the passengers is poor.

[0033] To solve the above problems, the application provides an automobile, comprising a rear floor structure.

[0034] Figure 1 FIG. 1 is a structural diagram of a rear floor structure according to an example embodiment. Figure 2 FIG. 2 is a structural diagram of a sheet metal part according to an example embodiment. It should be noted that in this document, the X axis, the Y axis and the Z axis can form a three-dimensional orthogonal coordinate system. Among them, the first direction X is the width direction of the sheet metal part, the third direction Z is the length direction of the sheet metal part, and the second direction Y is perpendicular to the XOZ plane.

[0035] Referring to Figure 1 and Figure 2 , the rear floor structure comprises a sheet metal part 1 and a cross beam 3. The sheet metal part 1 comprises a front flat section 10, a sunken section 20, a raised section 30 and a rear half section 40. The front flat section 10 has the same height as the front floor in the second direction Y. The rear end of the front flat section 10 is connected to the front end of the sunken section 20 through a first connecting plate 201, the rear end of the sunken section 20 is connected to the front end of the raised section 30, and the rear end of the raised section 30 is connected to the front end of the rear half section 40. The cross beam 3 is arranged at the connection between the rear half section 40 and the raised section 30 to support the sheet metal part 1, and the cross beam 3 is welded to the sheet metal part 1. In a direction perpendicular to the plane of the front flat section 10, the sheet metal part 1 is formed with a groove 204, the bottom of the groove 204 being the sunken section 20. Exemplarily, the raised section 30, the sunken section 20 and the first connecting plate 201 form a U-shaped groove. The front flat section 10, the first connecting plate 201 and the sunken section 20 are connected to form a "Z" shaped structure. In the related art, the distance between the sunken section 20 and the roof is the same as the distance between the front floor and the roof. The application adds the groove 204 to increase the distance between the sunken section 20 and the roof, increase the height of the rear floor structure to the roof, increase the legroom of the rear passengers, and improve the comfort of the passengers.

[0036] In some embodiments, the sections of the sheet metal part 1 are smoothly connected. Exemplarily, the rear end of the front flat section 10 is connected to the first connecting plate 201 through a circular arc, and the front end of the first connecting plate 201 is connected to the sunken section 20 through a circular arc. The rear end of the sunken section 20 is connected to the front end of the raised section 30 through a circular arc, and the rear end of the raised section 30 is connected to the front end of the rear half section 40 through a circular arc.

[0037] In some embodiments, in order to improve the strength of the sheet metal part 1, continuing to refer to Figure 2The rear floor structure provided by the embodiments of the present application is provided with at least one (for example, one, or a plurality of) first reinforcing rib in the front flat section 10. The extending direction of the first reinforcing rib is the direction of the front flat section 10 close to the rising section 30, that is, the extending direction of the first reinforcing rib is the first direction X. Exemplarily, the first reinforcing rib includes a first reinforcing sub-rib 11, a second reinforcing sub-rib 12, a third reinforcing sub-rib 13, a fourth reinforcing sub-rib 14, a fifth reinforcing sub-rib 15 and a sixth reinforcing sub-rib 16. The extending directions of these first reinforcing ribs can be parallel to each other, thereby reinforcing the strength of the front flat section 10 in the first direction X.

[0038] In other implementations, the extending directions of the first reinforcing ribs can also not be parallel, or at least the extending directions of two first reinforcing ribs are parallel, thereby reinforcing the strength of the front flat section 10.

[0039] In some embodiments, in order to improve the strength of the sheet metal part 1, continuing to refer to Figure 2 In the rear floor structure improved by the embodiments of the present application, the sunken section 20 is provided with at least one (for example, one, or a plurality of) second reinforcing rib, and the extending direction of the second reinforcing rib is parallel to the first direction X. Exemplarily, the second reinforcing rib includes a first reinforcing rib 41, a second reinforcing rib 42, a third reinforcing rib 43, a fourth reinforcing rib 44, a fifth reinforcing rib 45, a sixth reinforcing rib 46, a seventh reinforcing rib 47 and an eighth reinforcing rib 48. The extending directions of these second reinforcing ribs can be parallel to each other, thereby reinforcing the strength of the sunken section 20 in the first direction X.

[0040] In other implementations, the extending directions of the second reinforcing ribs can also not be parallel, or at least the extending directions of two second reinforcing ribs are parallel, thereby reinforcing the strength of the sunken section 20.

[0041] In some embodiments, the first reinforcing rib and the second reinforcing rib can extend to the first connecting plate 201, and at least one first reinforcing rib and at least one second reinforcing rib can be connected to each other, thereby forming an elongated reinforcing rib extending from the front flat section 10 to the sunken section 20, and simultaneously reinforcing the strength of the front flat section 10, the first connecting plate 201 and the sunken section 20. In some examples, the elongated reinforcing rib can also extend from the front flat section 10 to the first connecting plate 201, thereby simultaneously reinforcing the strength of the front flat section 10 and the first connecting plate 201. In yet other examples, the elongated reinforcing rib can extend from the sunken section 20 to the first connecting plate 201, thereby simultaneously reinforcing the strength of the first connecting plate 201 and the sunken section 20.

[0042] In some embodiments, in order to improve the overall strength and rigidity of the rear floor structure, continuing to refer to Figure 1, the rear floor structure improved in the embodiments of the present application further includes a reinforcing longitudinal beam 2. The reinforcing longitudinal beam 2 is disposed in the middle of the sheet metal part 1, and the cross section of the middle part of the sheet metal part 1 is in a "U" - shaped structure. At this time, the reinforcing longitudinal beam 2 divides the sunken section 20 into two parts, namely the first groove 204a and the second groove 204b. The extending direction of the reinforcing longitudinal beam 2 is the first direction X. The reinforcing longitudinal beam 2 can extend from the front flat section 10 to the rear end where the sunken section 20 is connected to the rising section 30, or can extend from the front flat section 10 to the middle of the sunken section 20 in the first direction X. The present application does not make a limit on this.

[0043] In some embodiments, in order to further enhance the strength of the sheet metal part 1, continue to refer to Figure 2 , for the rear floor structure provided by the embodiments of the present application, the first reinforcing ribs are disposed on both sides of the reinforcing longitudinal beam 2 to strengthen the strength of each part of the sheet metal part 1 in the third direction Z. Exemplarily, on both sides of the reinforcing longitudinal beam 2, the first reinforcing ribs are symmetrically distributed with respect to the reinforcing longitudinal beam 2, and it is not necessary to separately determine the distribution of the first reinforcing ribs on the other side of the reinforcing longitudinal beam 2, which simplifies the preparation process of the reinforcing ribs on the sheet metal part 1.

[0044] In some embodiments, continue to refer to Figure 2 , for the rear floor structure provided by the embodiments of the present application, the second reinforcing ribs are disposed on both sides of the reinforcing longitudinal beam 2, and can also strengthen the strength of each part of the sheet metal part 1 in the third direction Z. Exemplarily, on both sides of the reinforcing longitudinal beam 2, the second reinforcing ribs are symmetrically distributed with respect to the reinforcing longitudinal beam 2. The beneficial effects produced can refer to the beneficial effects of the symmetrical distribution of the first reinforcing ribs in the above text, and will not be elaborated here.

[0045] In some embodiments, the reinforcing longitudinal beam 2 is provided with third reinforcing ribs, and the extending direction of the third reinforcing ribs is perpendicular to the extending direction of the first reinforcing ribs, that is to say, the extending direction of the third reinforcing ribs is parallel to the third direction Z. There can be at least one third reinforcing rib. Exemplarily, the third reinforcing ribs include transverse reinforcing ribs 21, and the extending direction of the transverse reinforcing ribs 21 is parallel to the third direction Z. The third reinforcing ribs can improve the strength of the reinforcing longitudinal beam 2, and the third reinforcing ribs and the first reinforcing ribs or the second reinforcing ribs further strengthen the strength of the sheet metal part 1 from two directions.

[0046] In some other implementation manners, the extending direction of the transverse reinforcing ribs 21 can also form an acute angle or an obtuse angle with the extending direction of the reinforcing longitudinal beam 2.

[0047] In some embodiments, in order to improve the strength and formability of the sheet metal part, continue to refer to Figure 2The rear floor structure further comprises a first side wall 202 connected to one side of the sunken section 20 and a second side wall 203 connected to the other side of the sunken section 20. At least one of the first side wall 202 and the second side wall 203 is provided with a fourth reinforcing rib, and the fourth reinforcing rib extends in the height direction of the first side wall 202 or the second side wall 203. For example, the first side wall 202 is provided with five fourth reinforcing ribs 51, which reinforce the strength of the first side wall 202 in the height direction. For another example, the second side wall 203 is provided with five fourth reinforcing ribs 61, which reinforce the strength of the second side wall 203 in the height direction.

[0048] In some embodiments, in order to further improve the strength of the sheet metal part 1 and prevent the sheet metal part 1 from being disconnected from the front floor, continuing to refer to Figure 1 and Figure 2 , the sheet metal part 1 is provided with an energy-absorbing rib, one end of the energy-absorbing rib is flush with the front end of the front flat section 10, and the other end extends into the front flat section 10. For example, the energy-absorbing rib comprises a first energy-absorbing rib 31 and a second energy-absorbing rib 32, which are located on both sides of the reinforcing longitudinal beam 2, so that the sheet metal part 1 is not easy to be disconnected from the front floor on both sides.

[0049] In some embodiments, the energy-absorbing rib can also be located on the sunken section 20 and the first connecting plate 201. For example, the energy-absorbing rib comprises a third energy-absorbing rib 33, a fourth energy-absorbing rib 34, a fifth energy-absorbing rib 35, a sixth energy-absorbing rib 36, a seventh energy-absorbing rib 37 and an eighth energy-absorbing rib 38, which extend from the first connecting plate 201 to the sunken section 20. One end of the energy-absorbing rib is flush with one end of the second connecting plate 201, which prevents the second connecting plate 201 from being disconnected from the front flat section 10, and the energy-absorbing rib on the sunken section 20 prevents the second connecting plate 201 from being disconnected from the front end of the sunken section 20.

[0050] In some embodiments, in order to simplify the manufacturing process, continuing to refer to Figure 2 , the sheet metal part 1 provided by the embodiment of the present application is an integrally formed structure.

[0051] In some embodiments, in order to ensure the mounting strength of the rear row of seats, continuing to refer to Figure 1The rear floor structure further comprises at least one (e.g. one, and also two) seat support 4, a seat support plate 5, and at least one (e.g. one, and also two) anti-submersion support 6. The seat support 4 is arranged on the cross beam 3, the seat support plate 5 is arranged on the rear half section 40, and the anti-submersion support 6 is arranged on one side of the seat support plate 5, and the anti-submersion support 6 corresponds to the seat support 4. Exemplarily, two seat supports 4 are arranged on both sides of the extension direction of the reinforcing longitudinal beam 2, and each seat support 4 corresponds to an anti-submersion support 6 to prevent the seat from submerging. The seat support plate 5 is arranged between the two seat supports 4, and in some examples, the seat support plate 5 can also be arranged in the plane where the line between the two anti-submersion supports 6 is located, to play a supporting role. The seat support plate 5 is arranged on the rear half section 40, which strengthens the strength of the rear half section 40 and reduces the cost of the skeleton of the seat.

[0052] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rear floor structure, characterized in that, Comprising: A sheet metal part, including a front flat section, a sinking section, a rising section, and a rear half section. The rear end of the front flat section is connected to the front end of the sinking section through a first connecting plate. The rear end of the sinking section is connected to the front end of the rising section. The rear end of the rising section is connected to the front end of the rear half section; A cross beam, arranged at the connection between the rear half section and the rising section, for supporting the sheet metal part; Wherein, in the direction perpendicular to the plane where the front flat section is located, the sheet metal part forms a groove, and the bottom of the groove is the sinking section; the front flat section, the first connecting plate, and the sinking section are connected to form a "Z" - shaped structure; The rear floor structure further includes at least one seat bracket, a seat support plate, and at least one anti - submergence bracket; the at least one seat bracket is arranged on the cross beam, the seat support plate is arranged on the rear half section, the at least one anti - submergence bracket is arranged on one side of the seat support plate, and the anti - submergence bracket corresponds to the seat bracket one by one.

2. The rear floor structure according to claim 1, characterized in that, The front flat section is provided with at least one first reinforcing rib, and the extending direction of the first reinforcing rib is the direction in which the front flat section approaches the rising section; the sinking section is provided with at least one second reinforcing rib, and the extending direction of the second reinforcing rib is parallel to the extending direction of the first reinforcing rib.

3. The rear floor structure according to claim 2, characterized in that, It further includes a reinforcing longitudinal beam, arranged in the middle of the sheet metal part, and the cross - section of the middle of the sheet metal part is in a "C" - shaped structure.

4. The rear floor structure according to claim 3, characterized in that, On both sides of the reinforcing longitudinal beam, the first reinforcing ribs are symmetrically distributed with respect to the reinforcing longitudinal beam, and / or the second reinforcing ribs are symmetrically distributed with respect to the reinforcing longitudinal beam.

5. The rear floor structure according to claim 3, characterized in that, The reinforcing longitudinal beam is provided with a third reinforcing rib, and the extending direction of the third reinforcing rib is perpendicular to the extending direction of the first reinforcing rib.

6. The rear floor structure according to claim 1, characterized in that, It further includes a first side wall and a second side wall. The first side wall is connected to one side of the sinking section, the second side wall is connected to the other side of the sinking section, and at least one of the first side wall and the second side wall is provided with a fourth reinforcing rib, and the extending direction of the fourth reinforcing rib is the height direction of the first side wall or the second side wall.

7. The rear floor structure according to claim 1, characterized in that, The sheet metal part is provided with an energy - absorbing rib, one end of the energy - absorbing rib is flush with the front end of the front flat section, and the other end extends into the front flat section.

8. The rear floor structure according to claim 1, characterized in that, The sheet metal part is an integrally formed structure.

9. A car, characterized in that, Including the rear floor structure according to any one of claims 1 - 8.

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