A rear floor assembly and a travelling apparatus

Abstract

The present application relates to a rear floor assembly and a running device, comprising a rear floor, having a connecting end; a side beam plate, connected with the connecting end of the rear floor; a first side plate, connected with the side beam plate and the connecting end of the rear floor respectively; at least part of the first side plate is located on the top side of the side beam plate; the side beam plate and the first side plate enclose a side beam structure, and define a cavity of the side beam structure between the side beam plate and the first side plate. The side beam plate and the first side plate of the present application enclose a side beam structure, and define a cavity of the side beam structure between the side beam plate and the first side plate, at this time, part of the first side plate forms a wall of the side beam structure, and the side beam plate does not need to be arranged as a profile structure with a ring-shaped cross section, so as to reduce the weight of the rear floor assembly, and reduce the weight of the running device such as a vehicle.

Description

Technical Field

[0001] This invention relates to the field of rear floor technology, and more specifically to a rear floor assembly and driving equipment. Background Technology

[0002] The rear floor side beam of automobiles and other vehicles is an indispensable component, playing a protective role for the vehicle and its occupants in the event of a rear-end collision. However, in related technologies, the rear floor side beam of automobiles and other vehicles is generally made of profiles, resulting in a relatively large mass and affecting the weight of the vehicle or vehicle. Summary of the Invention

[0003] One objective of this invention is to provide a rear floor assembly to solve the problem that the large mass of the rear floor side beams in the prior art affects the weight of vehicles and other driving equipment; another objective is to provide a driving device.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A rear floor assembly, comprising:

[0006] Rear floor, with connecting end;

[0007] The edge beam plate is connected to the connection end of the rear floor.

[0008] The first side plate is connected to the connection ends of the side beam plate and the rear floor, respectively; at least a portion of the first side plate is located on the top side of the side beam plate;

[0009] The side beam plate and the first side plate form a side beam structure, and define a cavity for the side beam structure between the side beam plate and the first side plate.

[0010] In some alternative implementations, the first side plate includes:

[0011] The top plate portion is located on the top side of the side beam plate;

[0012] A first vertical plate is disposed at the edge of the top plate; the first vertical plate is suspended toward the side beam plate and connected to the side beam plate; the first vertical plate forms at least a portion of the first sidewall of the side beam structure;

[0013] At least one of the top plate portion and the first vertical plate portion is connected to the connection end of the rear floor.

[0014] In some alternative implementations, the edge beam plate includes:

[0015] The base plate has a first side and a second side disposed opposite to each other; the first side of the base plate is connected to the first vertical plate.

[0016] The rear floor assembly also includes:

[0017] The second vertical plate is connected to the second side of the bottom plate and the top plate, respectively; wherein the second vertical plate forms at least a portion of the second sidewall of the side beam structure;

[0018] The top plate, the first vertical plate, the bottom plate, and the second vertical plate form the side beam structure.

[0019] In some alternative implementations, the end of the second vertical plate near the top plate has a first overlapping portion that bends away from the first vertical plate and is in contact with the top plate.

[0020] In some alternative implementations, the rear floor assembly further includes:

[0021] The third vertical plate is disposed between the first side of the bottom plate and the first vertical plate, and is connected to the first side of the bottom plate and the first vertical plate respectively; the third vertical plate and the first vertical plate form the first sidewall of the side beam structure; at least one of the bottom plate, the second vertical plate and the third vertical plate is connected to the connection end of the rear floor.

[0022] In some alternative implementations, the end of the third vertical plate portion away from the bottom plate portion has a second overlapping portion that bends away from the second vertical plate portion, and the end of the first vertical plate portion away from the top plate portion has a bent third overlapping portion, with the second overlapping portion and the third overlapping portion in contact connection.

[0023] In some alternative implementations, the base plate, the second vertical plate, and the third vertical plate are different parts of a single structural member; or, the base plate is connected to the second vertical plate and the third vertical plate, respectively; and / or, the top plate and the first vertical plate are different parts of a single structural member; or, the top plate and the first vertical plate are connected.

[0024] In some alternative implementations, the end of the side beam plate away from the rear floor has a first contact portion that bends outward toward the side beam structure, and the end of the first side plate away from the rear floor has a second contact portion that bends outward toward the side beam structure.

[0025] In some alternative implementations, the base plate includes:

[0026] The leveled section is located at one end near the rear floor.

[0027] An inclined section is located at one end away from the rear floor; the inclined section is inclined in the direction away from the rear floor toward the side away from the top plate to form a flared side beam structure.

[0028] In some alternative implementations, the rear floor assembly further includes:

[0029] The second side plate is connected to the connection end of the first vertical plate and the rear floor respectively; on the projection plane parallel to the height direction of the rear floor, the projection of the second side plate is located on the bottom side of the projection of the top plate.

[0030] In some alternative implementations, the first vertical plate portion has a third overlapping portion at one end away from the top plate portion, which bends away from the top plate portion, the side beam plate has a second overlapping portion, and the third overlapping portion is located between the second overlapping portion and the edge portion of the second side plate, and is connected to the third overlapping portion and the edge portion of the second side plate respectively.

[0031] In some alternative implementations, the rear floor includes:

[0032] On a projection plane parallel to the height direction of the rear floor, the projection of the main board is located on the top side of the projection of the side beam plate.

[0033] The fourth vertical plate is disposed at one end of the main plate facing the side beam plate; the fourth vertical plate is suspended on the side facing the side beam plate, and the end of the fourth vertical plate away from the main plate is connected to the second side plate.

[0034] In some alternative implementations, the end of the fourth vertical plate away from the main plate has a fourth overlapping portion that bends away from the main plate. The fourth vertical plate and the first vertical plate define a mounting groove. The second side plate is located in the mounting groove. The edge of the second side plate overlaps the top side of the fourth overlapping portion and the second overlapping portion and contacts and connects with the fourth overlapping portion and the second overlapping portion, respectively.

[0035] In some alternative implementations, the first side plate includes:

[0036] The top plate portion is located on the top side of the side beam plate;

[0037] The first overlapping part has a first end connected to the top plate part, and a second end of the first overlapping part inclined toward the side away from the top plate part and the side beam plate; the first overlapping part is laid on the top side of the connection between the rear floor and the side beam plate.

[0038] In some alternative implementations, the rear floor includes:

[0039] On a projection plane parallel to the height direction of the rear floor, the projection of the main board is located on the top side of the projection of the side beam plate.

[0040] The second overlapping portion is disposed at one end of the main board portion facing the side beam plate; the second overlapping portion is inclined towards the side beam plate.

[0041] The second overlapping portion is connected to the side beam plate at one end away from the main body portion, and the first overlapping portion is attached to the top side of the second overlapping portion and covers the connection between the second overlapping portion and the side beam plate.

[0042] In some alternative implementations, the end of the second overlapping portion away from the main body portion has a limiting groove, and the side beam plate faces...

[0043] One end of the rear floor is engaged in the limiting groove and connected to the peripheral wall of the limiting groove;

[0044] The first side plate also includes:

[0045] The first vertical plate is disposed at the edge of the top plate; the first vertical plate is suspended on the side beam plate and connected to the side beam plate; one end of the first vertical plate facing the main plate is attached to the outside of the wall on one side of the limiting groove.

[0046] In some alternative implementations, the thickness of the side beam plate is greater than the thickness of the first side plate; and / or,

[0047] The side beam plate and the first side plate are both made of steel, the rear floor is made of aluminum, and the rear floor is a die-cast structure.

[0048] A driving device, the driving device including the rear floor assembly described in the embodiments of this application.

[0049] The beneficial effects of this invention are:

[0050] Since the first side plate forms part of the wall of the side beam structure, the side beam plate does not need to be set as a profile structure with a ring cross section, thereby reducing the weight of the rear floor assembly and the weight of vehicles and other driving equipment. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of an optional structure of the rear floor assembly of the present invention;

[0052] Figure 2 An exploded view of the rear floor assembly of the present invention from one alternative perspective;

[0053] Figure 3An exploded view of the structure of the rear floor assembly of the present invention from an alternative perspective;

[0054] Figure 4 This is a schematic diagram of an optional structure of the rear floor assembly of the present invention, wherein the AA surface is cut off at the location;

[0055] Figure 5 for Figure 4 Sectional view at point AA.

[0056] Among them, 100 is the rear floor; 110 is the main board section; 120 is the fourth vertical plate section; 130 is the fourth overlapping section; 140 is the second overlapping section; 150 is the limiting groove; 200 is the first side plate; 210 is the top plate section; 220 is the first vertical plate section; 230 is the third overlapping section; 240 is the second contact section; 250 is the first overlapping section; 300 is the side beam plate; 310 is the bottom plate section; 311 is the flat section; 312 is the inclined section; 320 is the second vertical plate section; 330 is the third vertical plate section; 340 is the first overlapping section; 350 is the second overlapping section; 360 is the first contact section; 400 is the second side plate; 500 is the side beam structure; and 510 is the cavity. Detailed Implementation

[0057] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0058] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0059] like Figure 1 and Figure 2As shown, this embodiment proposes a rear floor 100 assembly, including: a rear floor 100, a side beam plate 300, and a first side plate 200. The rear floor 100 has a connecting end; the side beam plate 300 is connected to the connecting end of the rear floor 100; the first side plate 200 is connected to both the connecting ends of the side beam plate 300 and the rear floor 100; at least a portion of the first side plate 200 is located on the top side of the side beam plate 300; the side beam plate 300 and the first side plate 200 form a side beam structure 500, and define a cavity 510 of the side beam structure 500 between the side beam plate 300 and the first side plate 200.

[0060] The side beam structure 500 of automobiles and other driving equipment is generally located at the rear of the automobiles and other driving equipment. In the event of a rear-end collision, the side beam structure 500 plays a protective role for the automobiles and other driving equipment and their occupants.

[0061] In related technologies, the rear floor side beams of automobiles and other driving equipment are generally profile structures. For example, the rear floor side beams of automobiles and other driving equipment use aluminum extrusion processes, and the material of the rear floor side beams is aluminum profiles. In this case, the aluminum profiles are relatively thick and have a large mass, resulting in a large mass of the rear floor side beams of automobiles and other driving equipment, which affects the weight of automobiles and other driving equipment. However, the rear floor 100 assembly of this application includes a side beam plate 300 and a first side plate 200. The side beam plate 300 and the first side plate 200 form a side beam structure 500, and a cavity 510 of the side beam structure 500 is defined between the side beam plate 300 and the first side plate 200. In this case, a portion of the first side plate 200 forms the wall of the side beam structure 500, and the side beam plate 300 does not need to be set as a profile structure with a ring cross section, thereby reducing the weight of the rear floor 100 assembly and the weight of automobiles and other driving equipment.

[0062] In this embodiment, the structure of the rear floor 100 is not limited. For example, the rear floor 100 can be formed by die casting, in which case the rear floor 100 is a die-cast structure. Alternatively, the rear floor 100 can be formed by bending or welding. The material of the rear floor 100 is not limited. For example, the material of the rear floor 100 can be aluminum or steel. As an example, the rear floor 100 is an aluminum die-cast structure.

[0063] In this embodiment, the structure of the side beam plate 300 is not limited. For example, the side beam plate 300 can be formed by die casting, in which case the side beam plate 300 is a die-cast structure. Another example is that the side beam plate 300 can be formed by bending, in which case the side beam plate 300 is a bent structure. Yet another example is that the side beam plate 300 can be formed by welding, in which case the side beam plate 300 is a welded structure. The material of the side beam plate 300 is not limited. For example, the material of the side beam plate 300 can be steel, so that the strength of the side beam structure 500 can be increased by using a steel side beam plate 300, while also allowing for a smaller thickness of the side beam plate 300, thereby indirectly reducing the installation space and weight of the side beam plate 300. Of course, the material of the side beam plate 300 can also be aluminum. The side beam plate 300 can be connected to the rear floor 100 by bolts, welding, or hot-melt self-tapping screws (FDS) riveting.

[0064] In this embodiment, the structure of the first side plate 200 is not limited. For example, the first side plate 200 can be formed by die casting, in which case the first side plate 200 is a die-cast structure. Another example is that the first side plate 200 can be formed by bending, in which case the first side plate 200 is a bent structure. Yet another example is that the first side plate 200 can be formed by welding, in which case the first side plate 200 is a welded structure. The material of the first side plate 200 is not limited. For example, the material of the first side plate 200 can be steel, so that the strength of the side beam structure 500 can be improved by using a steel structure for the first side plate 200, while also allowing for a smaller thickness of the first side plate 200, thereby indirectly reducing the installation space and weight of the first side plate 200. Of course, the material of the first side plate 200 can also be aluminum. The thickness of the side beam plate 300 can be greater than the thickness of the first side plate 200, so as to both increase the strength of the side beam structure 500 with the thicker side beam plate 300 and reduce the weight of the rear floor 100 assembly with the thinner first side plate 200. As an example, the thickness of the side beam plate 300 is 1.22mm, and the thickness of the first side plate 200 is 0.65mm. In related technologies, the thickness of the aluminum profile of the rear floor side beam is 3mm, and the aluminum profile cannot form a rear floor side beam with different wall thicknesses. Of course, the thickness of the side beam plate 300 can also be less than or equal to the thickness of the first side plate 200. The first side plate 200 can be connected to the connection ends of the side beam plate 300 and the rear floor 100 by means of bolts, welding, or hot-melt self-tapping screws (FDS riveting).

[0065] In some optional implementations of the embodiments of this application, such as Figure 3As shown, the first side plate 200 may include a top plate portion 210 and a first vertical plate portion 220. The top plate portion 210 is disposed on the top side of the side beam plate 300; the first vertical plate portion 220 is disposed on the edge of the top plate portion 210; the first vertical plate portion 220 is suspended toward the side beam plate 300 and connected to the side beam plate 300; the first vertical plate portion 220 forms at least a portion of the first side wall of the side beam structure 500; by forming the top wall of the side beam structure 500 through the top plate portion 210 of the first side plate 200 and forming at least a portion of the first side wall of the side beam structure 500 through the first vertical plate portion 220 of the first side plate 200, the volume and weight of the side beam plate 300 can be greatly reduced, thereby further reducing the volume and weight of the side beam structure 500.

[0066] In this implementation, at least one of the top plate portion 210 and the first vertical plate portion 220 can be connected to the connection end of the rear floor 100 by means of bolts, welding, or hot-melt self-tapping screw (FDS) riveting. As an example, both the top plate portion 210 and the first vertical plate portion 220 are connected to the connection end of the rear floor 100 by welding or hot-melt self-tapping screw (FDS) riveting.

[0067] In this implementation, the top plate portion 210 and the first vertical plate portion 220 are different parts of a single structural component. In this case, the top plate portion 210 and the first vertical plate portion 220 can be formed on the same substrate through bending, die casting, or other methods to improve the connection strength between them. Alternatively, the top plate portion 210 and the first vertical plate portion 220 can also be connected by bolts, welding, or hot-melt self-tapping screw (FDS) riveting.

[0068] In this implementation, the side beam plate 300 may include a bottom plate portion 310. The bottom plate portion 310 has a first side and a second side disposed opposite to each other; the first side of the bottom plate portion 310 may be connected to the first vertical plate portion 220 by means of bolts, welding, or hot-melt self-tapping screws (FDS) riveting; the rear floor 100 assembly may further include a second vertical plate portion 320, which may be connected to the second side of the bottom plate portion 310 and the top plate portion 210 by means of bolts, welding, or hot-melt self-tapping screws (FDS) riveting; wherein, the second vertical plate portion 320 forms at least a portion of the second sidewall of the side beam structure 500; the top plate portion 210, the first vertical plate portion 220, the bottom plate portion 310, and the second vertical plate portion 320 enclose the side beam structure 500.

[0069] In this implementation, the first vertical plate portion 220 can form the entire first sidewall of the side beam structure 500, or it can form a portion of the first sidewall of the side beam structure 500; the second vertical plate portion 320 can form the entire second sidewall of the side beam structure 500, or it can form a portion of the first sidewall of the side beam structure 500. As an example, such as Figure 3As shown, the rear floor 100 assembly may further include: a third vertical plate portion 330, which is disposed between the first side of the base plate portion 310 and the first vertical plate portion 220, and is connected to the first side of the base plate portion 310 and the first vertical plate portion 220 respectively by means of bolts, welding, or hot-melt self-tapping screws (FDS). The third vertical plate portion 330 and the first vertical plate portion 220 form the first sidewall of the side beam structure 500. In this case, the first vertical plate portion 220 forms part of the first sidewall of the side beam structure 500. Here, at least one of the base plate portion 310, the second vertical plate portion 320, and the third vertical plate portion 330 can be connected to the rear floor 100 by means of bolts, welding, or hot-melt self-tapping screws (FDS). Of course, the rear floor 100 assembly may also not include the third vertical plate portion 330, and the first vertical plate portion 220 may be directly connected to the first side of the base plate portion 310 by means of bolts, welding, or hot-melt self-tapping screws (FDS). The second vertical plate 320 can be directly connected to the top plate 210. Of course, other plates can also be provided between the second vertical plate 320 and the top plate 210.

[0070] The end of the third vertical plate portion 330 away from the bottom plate portion 310 may have a second overlapping portion 350 bent away from the second vertical plate portion 320, and the end of the first vertical plate portion 220 away from the top plate portion 210 may have a bent third overlapping portion 230. The second overlapping portion 350 and the third overlapping portion 230 are in contact with each other to increase the contact area between the third vertical plate portion 330 and the first vertical plate portion 220, thereby improving the connection strength and stability between the third vertical plate portion 330 and the first vertical plate portion 220. Of course, the third vertical plate portion 330 and the first vertical plate portion 220 may also be directly connected through end face contact.

[0071] In this implementation, the end of the second vertical plate portion 320 near the top plate portion 210 may have a first overlapping portion 340 bent away from the first vertical plate portion 220. The first overlapping portion 340 is in contact with the top plate portion 210 to increase the contact area between the first vertical plate portion 220 and the top plate portion 210, thereby improving the connection strength and stability between the second vertical plate portion 320 and the top plate portion 210. Of course, the second vertical plate portion 320 may also be in contact with the top plate portion 210 through its end face.

[0072] In this implementation, the base plate 310, the second vertical plate 320, and the third vertical plate 330 can be different parts of a single structural member. Specifically, the base plate 310, the second vertical plate 320, and the third vertical plate 330 form a U-shaped structure, and the U-shaped side beam plate 300 can improve the strength of the side beam structure 500. Here, the base plate 310, the second vertical plate 320, and the third vertical plate 330 can be formed by bending, die casting, or other methods. Alternatively, the base plate 310 can also be connected to the second vertical plate 320 and the third vertical plate 330 respectively by bolts, welding, or hot-melt self-tapping screws (FDS).

[0073] It should be noted that in other implementations, the first side plate 200 may only include the top plate portion 210. In this case, the first side plate 200 only forms the top wall of the side beam structure 500, and the second vertical plate portion 320 and the third vertical plate portion 330 can be directly connected to the first side plate 200, forming two opposite side walls of the side beam structure 500.

[0074] In this implementation, the end of the side beam plate 300 away from the rear floor 100 has a first contact portion 360 bent outward toward the side beam structure 500, and the end of the first side plate 200 away from the rear floor 100 has a second contact portion 240 bent outward toward the side beam structure 500, so as to increase the contact area of ​​the rear end of the side beam structure 500 formed by the side beam plate 300 and the first side plate 200. When the rear of a vehicle or other driving equipment is impacted, the larger contact area can increase the buffering effect and better protect the occupants and items from injury.

[0075] In this implementation, the base plate 310 may include a flat section 311 and an inclined section 312. The flat section 311 is located at one end near the rear floor 100; the inclined section 312 is located at one end away from the rear floor 100; the inclined section 312 is inclined away from the top plate 210 in the direction away from the rear floor 100 to form a flared side beam structure 500; thereby further increasing the contact area of ​​the side beam structure 500. When the rear of a vehicle or other traveling equipment is impacted, the larger contact area can increase the cushioning effect and better protect occupants and items from injury; the aluminum profiles in related technologies cannot form rear floor side beams with different cross-sections.

[0076] In this implementation, the rear floor 100 assembly may further include a second side plate 400, which can be connected to the first vertical plate 220 and the connecting end of the rear floor 100 by means of bolts, welding, or hot-melt self-tapping screws (FDS). On a projection plane parallel to the height direction of the rear floor 100, the projection of the second side plate 400 is located below the projection of the top plate 210. By connecting the second side plate 400 to the first vertical plate 220, the height of the second side plate 400 can be reduced, thereby freeing up more space on the top side of the second side plate 400. For example, reducing the height of the second side plate 400 can increase the luggage compartment volume of the vehicle, thereby increasing the market competitiveness of the vehicle.

[0077] like Figure 4 and Figure 5 As shown, the first vertical plate portion 220 has a third overlapping portion 230 bent away from the top plate portion 210 at one end. The side beam plate 300 has a second overlapping portion 350. The third overlapping portion 230 is located between the second overlapping portion 350 and the edge of the second side plate 400, and can be connected to the edge of the second side plate 400 by means of bolts, welding, or hot-melt self-tapping screws (FDS) riveting. The contact connection between the edge of the second side plate 400 and the third overlapping portion 230 can improve the connection strength and stability between the second side plate 400 and the first vertical plate portion 220. Of course, the second side plate 400 can also be connected to the first vertical plate portion 220 through its end face.

[0078] like Figure 3As shown, the rear floor 100 may include a main board portion 110 and a fourth vertical plate portion 120. On a projection plane parallel to the height direction of the rear floor 100, the projection of the main board portion 110 is located on the top side of the projection of the side beam plate 300; the fourth vertical plate portion 120 is disposed at the end of the main board portion 110 facing the side beam plate 300; the fourth vertical plate portion 120 is suspended on the side facing the side beam plate 300, and the end of the fourth vertical plate portion 120 away from the main board portion 110 can be connected to the second side plate 400 by means of bolts, welding, hot-melt self-tapping screws (FDS) riveting, etc., so that the height of the second side plate 400 can be further reduced by the fourth vertical plate portion 120, thereby freeing up more space on the top side of the second side plate 400; thereby increasing the luggage compartment volume of the driving equipment. Here, the end of the fourth vertical plate portion 120 away from the main plate portion 110 may have a fourth overlapping portion 130 that bends away from the main plate portion 110. The fourth vertical plate portion 120 and the first vertical plate portion 220 define a mounting groove. The second side plate 400 is located in the mounting groove. The edge of the second side plate 400 overlaps the top side of the fourth overlapping portion 130 and the second overlapping portion 350 and contacts and connects with the fourth overlapping portion 130 and the second overlapping portion 350 respectively, so as to increase the contact area between the second side plate 400 and the first vertical plate portion 220 and the fourth vertical plate portion 120 respectively, thereby improving the strength and stability of the connection between the second side plate 400 and the first vertical plate portion 220 and the fourth vertical plate portion 120 respectively.

[0079] like Figure 3 As shown, in some optional implementations of the embodiments of this application, the first side plate 200 may include a top plate portion 210 and a first overlapping portion 250. The top plate portion 210 is disposed on the top side of the side beam plate 300; the first end of the first overlapping portion 250 is connected to the top plate portion 210, and the second end of the first overlapping portion 250 is inclined toward the side away from the top plate portion 210 and the side beam plate 300; the first overlapping portion 250 overlaps on the top side of the connection between the rear floor 100 and the side beam plate 300, so that it can both cover the connection between the rear floor 100 and the side beam plate 300 and protect the connection structure between the side beam plate 300 and the rear floor 100, and reduce the height of the top plate portion 210 of the first side plate 200 through the first overlapping portion 250, thereby freeing up more accommodation space on the top side of the top plate portion 210; so as to increase the luggage compartment volume of the driving equipment.

[0080] In this implementation, the top plate portion 210 and the first overlapping portion 250 can be different parts of a single structural component. In this case, the top plate portion 210 and the first overlapping portion 250 can be formed on the same substrate through bending, die casting, or other methods to improve the connection strength between them. Of course, the top plate portion 210 and the first overlapping portion 250 can also be connected by bolts, welding, or hot-melt self-tapping screw (FDS) riveting. When the first side plate 200 includes a top plate portion 210, a first overlapping portion 250, and a first vertical plate portion 220, the top plate portion 210, the first overlapping portion 250, and the first vertical plate portion 220 can be different parts of a structural component. The top plate portion 210, the first overlapping portion 250, and the first vertical plate portion 220 can be formed on the same substrate by bending, die casting, or other methods. Of course, the top plate portion 210, the first overlapping portion 250, and the first vertical plate portion 220 can also be connected by bolts, welding, or hot-melt self-tapping screw (FDS) riveting.

[0081] In this implementation, the rear floor 100 may include: a main board portion 110 and a second overlapping portion 140. On a projection plane parallel to the height direction of the rear floor 100, the projection of the main board portion 110 is located on the top side of the projection of the side beam plate 300. The second overlapping portion 140 is disposed at the end of the main board portion 110 facing the side beam plate 300. The second overlapping portion 140 is inclined towards the side beam plate 300. The end of the second overlapping portion 140 away from the main board portion 110 can be connected to the side beam plate 300 by means of bolts, welding, hot-melt self-tapping screws (FDS), etc. The first overlapping part 250 is mounted on the top side of the second overlapping part 140 and covers the connection between the second overlapping part 140 and the side beam plate 300. This allows the first overlapping part 250 to cover the connection between the second overlapping part 140 and the side beam plate 300, protecting the connection structure between the second overlapping part 140 and the side beam plate 300. It also allows the second overlapping part 140 to lower the height of the side beam plate 300, thereby further lowering the height of the first side plate 200 and freeing up more space on the top side of the first side plate 200 to increase the luggage compartment volume of the vehicle.

[0082] The main board portion 110 and the second overlapping portion 140 can be different parts of a single structural component. In this case, the main board portion 110 and the second overlapping portion 140 can be formed on the same substrate through bending, die casting, or other methods to improve the connection strength between the main board portion 110 and the second overlapping portion 140. Of course, the main board portion 110 and the second overlapping portion 140 can also be connected by bolts, welding, or hot-melt self-tapping screw (FDS) riveting.

[0083] The second lap portion 140 and the first lap portion 250 can be connected by bolts, welding, or hot-melt self-tapping screws (FDS) riveting. The shape of the second lap portion 140 can match the shape of the first lap portion 250. At this time, the second lap portion 140 and the first lap portion 250 can be attached together. When the second lap portion 140 and the first lap portion 250 are connected, the first lap portion 250 can form a sealed space at the connection between the second lap portion 140 and the edge beam plate 300, thereby better protecting the connection structure between the second lap portion 140 and the edge beam plate 300.

[0084] In this implementation, such as Figure 3 As shown, the second overlapping part 140 has a limiting groove 150 at the end away from the main board part 110. The end of the side beam plate 300 facing the rear floor 100 is locked in the limiting groove 150 and can be connected to the periphery of the limiting groove 150 by means of bolts, welding, hot-melt self-tapping screws (FDS) riveting, etc. By locking the end of the side beam plate 300 facing the rear floor 100 in the limiting groove 150, the connection strength between the side beam plate 300 and the second overlapping part 140 can be improved, and the position of the side beam plate 300 can be limited.

[0085] The first side plate 200 may further include: a first vertical plate portion 220, which is disposed at the edge of the top plate portion 210; the first vertical plate portion 220 is suspended on the side beam plate 300 and connected to the side beam plate 300; one end of the first vertical plate portion 220 facing the main plate portion 110 rests outside the wall on one side of the limiting groove 150, at which time the wall on one side of the limiting groove 150 is located between the first vertical plate portion 220 and the side beam plate 300, and the first vertical plate portion 220 towards the main plate portion 110 is connected to the side beam plate 300. One end of the first vertical plate 220 is positioned outside the wall on one side of the limiting groove 150, thus limiting the first vertical plate 220. The first vertical plate 220 and the wall on one side of the limiting groove 150 can be connected by bolts, welding, or hot-melt self-tapping screws (FDS). Positioning the first vertical plate 220 outside the wall on one side of the limiting groove 150 at the end facing the main plate 110 also increases the connection area and strength between the first vertical plate 220 and the rear floor 100. Here, the first vertical plate 220 and the first overlapping portion 250 can be located on adjacent sides of the first side plate 200.

[0086] This embodiment also proposes a driving device, which includes a rear floor 100 assembly.

[0087] The structure of the traveling equipment is not limited. For example, the traveling equipment can be a car or a truck.

[0088] This invention uses a side beam plate 300 and a first side plate 200 to form a side beam structure 500, and defines a cavity 510 for the side beam structure 500 between the side beam plate 300 and the first side plate 200. In this case, a portion of the first side plate 200 forms the wall of the side beam structure 500. The side beam plate 300 does not need to be configured as a profile structure with a ring cross-section, thereby reducing the weight of the rear floor 100 assembly and the weight of vehicles and other driving equipment. At the same time, the side beam plate 300 and the first side plate 200 can be made thinner, or the thicknesses of the side beam plate 300 and the first side plate 200 can be different, thereby further reducing the weight of the rear floor 100 assembly. In addition, the fact that a portion of the first side plate 200 forms the wall of the side beam structure 500 can also reduce the cost of the rear floor 100 assembly.

[0089] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention.

Claims

1. A rear floor assembly, characterized in that, include: Rear floor, with connecting end; The edge beam plate is connected to the connection end of the rear floor. The first side plate is connected to the connection ends of the side beam plate and the rear floor, respectively; at least a portion of the first side plate is located on the top side of the side beam plate; The side beam plate and the first side plate form a side beam structure, and define a cavity of the side beam structure between the side beam plate and the first side plate; The first side plate includes: The top plate portion is located on the top side of the side beam plate; A first vertical plate is disposed at the edge of the top plate; the first vertical plate is suspended toward the side beam plate and connected to the side beam plate; the first vertical plate forms at least a portion of the first sidewall of the side beam structure; At least one of the top plate portion and the first vertical plate portion is connected to the connection end of the rear floor. The rear floor assembly also includes a second side plate, which is connected to the first vertical plate and the connection end of the rear floor respectively. This can reduce the height of the second side plate, thereby freeing up more space on the top side of the second side plate. On the projection plane parallel to the height direction of the rear floor, the projection of the second side plate is located on the bottom side of the projection of the top plate. Both the side beam plate and the first side plate are made of steel, and the thickness of the side beam plate is greater than that of the first side plate.

2. The rear floor assembly according to claim 1, characterized in that, The edge beam plate includes: The base plate has a first side and a second side disposed opposite to each other; the first side of the base plate is connected to the first vertical plate. The rear floor assembly also includes: The second vertical plate is connected to the second side of the bottom plate and the top plate, respectively; wherein the second vertical plate forms at least a portion of the second sidewall of the side beam structure; The top plate, the first vertical plate, the bottom plate, and the second vertical plate form the side beam structure.

3. The rear floor assembly according to claim 2, characterized in that, The second vertical plate portion has a first overlapping portion at one end near the top plate portion, which bends away from the first vertical plate portion and is in contact with the top plate portion.

4. The rear floor assembly according to claim 2, characterized in that, The rear floor assembly also includes: The third vertical plate is disposed between the first side of the bottom plate and the first vertical plate, and is connected to the first side of the bottom plate and the first vertical plate respectively; the third vertical plate and the first vertical plate form the first sidewall of the side beam structure; At least one of the base plate, the second vertical plate, and the third vertical plate is connected to the connection end of the rear floor.

5. The rear floor assembly according to claim 4, characterized in that, The third vertical plate portion has a second overlapping portion bent away from the bottom plate portion at one end, and the first vertical plate portion has a third overlapping portion bent away from the top plate portion at one end, and the second overlapping portion and the third overlapping portion are in contact with each other.

6. The rear floor assembly according to claim 4, characterized in that, The base plate, the second vertical plate, and the third vertical plate are different parts of a single structural member; or, the base plate is connected to the second vertical plate and the third vertical plate, respectively; and / or The top plate and the first vertical plate are different parts of a single structural member; or, the top plate and the first vertical plate are connected.

7. The rear floor assembly according to claim 4, characterized in that, The end of the side beam plate away from the rear floor has a first contact portion that bends outward toward the side beam structure, and the end of the first side plate away from the rear floor has a second contact portion that bends outward toward the side beam structure.

8. The rear floor assembly according to claim 2, characterized in that, The base plate includes: The leveled section is located at one end near the rear floor. An inclined section is located at one end away from the rear floor; the inclined section is inclined in the direction away from the rear floor toward the side away from the top plate to form a flared side beam structure.

9. The rear floor assembly according to claim 1, characterized in that, The first vertical plate portion has a third overlapping portion at one end away from the top plate portion, which bends away from the top plate portion. The side beam plate has a second overlapping portion. The third overlapping portion is located between the second overlapping portion and the edge portion of the second side plate, and is connected to the third overlapping portion and the edge portion of the second side plate respectively.

10. The rear floor assembly according to claim 9, characterized in that, The rear floor includes: On a projection plane parallel to the height direction of the rear floor, the projection of the main board is located on the top side of the projection of the side beam plate. The fourth vertical plate is disposed at one end of the main plate facing the side beam plate; the fourth vertical plate is suspended on the side facing the side beam plate, and the end of the fourth vertical plate away from the main plate is connected to the second side plate.

11. The rear floor assembly according to claim 10, characterized in that, The fourth vertical plate portion has a fourth overlapping portion that bends away from the main plate portion at one end. The fourth vertical plate portion and the first vertical plate portion define a mounting groove. The second side plate is located in the mounting groove. The edge of the second side plate overlaps the top side of the fourth overlapping portion and the second overlapping portion and is in contact with the fourth overlapping portion and the second overlapping portion, respectively.

12. The rear floor assembly according to claim 1, characterized in that, The first side plate includes: The top plate portion is located on the top side of the side beam plate; The first overlapping part has a first end connected to the top plate part, and a second end of the first overlapping part inclined toward the side away from the top plate part and the side beam plate; the first overlapping part is laid on the top side of the connection between the rear floor and the side beam plate.

13. The rear floor assembly according to claim 12, characterized in that, The rear floor includes: On a projection plane parallel to the height direction of the rear floor, the projection of the main board is located on the top side of the projection of the side beam plate. The second overlapping portion is disposed at one end of the main board portion facing the side beam plate; the second overlapping portion is inclined towards the side beam plate. The second overlapping part is connected to the side beam plate at one end away from the main board part, and the first overlapping part is attached to the top side of the second overlapping part and covers the connection between the second overlapping part and the side beam plate.

14. The rear floor assembly according to claim 13, characterized in that, The second overlapping part has a limiting groove at one end away from the main board part, and the side beam plate is engaged in the limiting groove at one end facing the rear floor and is connected to the wall of the limiting groove. The first side plate also includes: The first vertical plate is disposed at the edge of the top plate; the first vertical plate is suspended on the side beam plate and connected to the side beam plate; one end of the first vertical plate facing the main plate is attached to the outside of the wall on one side of the limiting groove.

15. The rear floor assembly according to any one of claims 1 to 14, characterized in that, The rear floor is made of aluminum and has a die-cast structure.

16. A driving device, characterized in that, The driving equipment includes the rear floor assembly as described in any one of claims 1 to 15.

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