Enclose bottom end rail structure before hydrogen energy automobile aluminum alloy
Technical Field
The utility model relates to a hydrogen energy automobile technical field especially relates to a enclose bottom end rail structure before hydrogen energy automobile aluminum alloy.
Background
For a hydrogen energy automobile, in order to achieve a large driving range, a large-volume hydrogen bottle is usually arranged by fully utilizing available space at the lower part of an automobile body, and the arrangement of the hydrogen bottle in a central passage is one of feasible ways. In order to meet the requirement of light weight, the automobile body can be designed by adopting an aluminum alloy section lower beam, the aluminum alloy lower beam is generally designed into a trapezoidal structure in consideration of boundary conditions, and the size in the X direction is larger so as to meet the requirement of collision force transfer. When hydrogen bottle X size is great, can perhaps with before enclose the bottom end rail and interfere, enclose the breach before needing and dodge, the breach can lead to before enclosing the section sudden change to a certain extent, causes stress concentration, is unfavorable for the collision to pass power, consequently needs to take certain mode reinforcement.
Disclosure of Invention
In view of this, the utility model provides a enclose bottom end rail structure before hydrogen energy automobile aluminum alloy.
The utility model provides a enclose bottom end rail structure before hydrogen energy automobile aluminum alloy, including first connecting plate, first frame, second connecting plate and reinforcing plate, the vertical upper end of connecting at first frame of first connecting plate, first frame fixed connection is in the upper end of second frame, second connecting plate fixed connection is at the right-hand member of second frame, first frame and second frame constitute trapezium structure, the reinforcing plate sets up on trapezium structure's inclined plane.
Furthermore, the first frame is enclosed by a first top end plate, a first left side plate and a first right side plate to form, the second frame is enclosed by a second top end plate, a bottom end plate, a second left side plate and a second right side plate to form, the second top end plate is parallel to the first top end plate, and the first left side plate and the first right side plate are fixedly connected to the second top end plate.
Further, the length of the second top endplate is greater than the length of the first top endplate, and the width of the second top endplate is equal to the width of the first top endplate.
Further, the one end of reinforcing plate is glued through the structure and is connected with the contact of first top board, the centre of reinforcing plate is glued through the structure and is connected with the contact of second top board, the other end of reinforcing plate is glued through the structure and is connected with the contact of second connecting plate.
Furthermore, a U-shaped first notch is formed in the reinforcing plate along the length direction.
Furthermore, a U-shaped second gap is formed in the second connecting plate along the length direction.
Further, the first connecting plate, the first left side plate and the second left side plate are integrally formed through welding.
Further, the second connecting plate and the bottom end plate are integrally formed through welding.
Furthermore, horizontal support rods and vertical support rods are arranged in the cavity of the second frame in a staggered mode.
Further, the first connecting plate, the first frame, the second connecting plate, the reinforcing plate, the horizontal supporting rod and the vertical supporting rod are all made of aluminum alloy materials.
The utility model provides a beneficial effect that technical scheme brought is: the utility model provides a structure sets up horizontal support bar and vertical support bar through setting up the reinforcing design that encloses the bottom end rail before the cavity of reinforcing plate and second frame realizes, and the mode of enclosing the bottom end rail cross-section before changing compares, the utility model discloses a structure is not only firm, more is favorable to reducing the weight of enclosing the bottom end rail moreover, establishes the basis for realizing the automobile body lightweight.
Drawings
Fig. 1 is a schematic structural diagram of the lower beam structure of the front wall of the hydrogen energy automobile aluminum alloy.
Fig. 2 is a schematic view of a partial structure of a front lower beam structure of a hydrogen energy automobile aluminum alloy.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Please refer to fig. 1 and 2, an embodiment of the present invention provides a lower beam structure before hydrogen energy automobile aluminum alloy, including first connecting plate 1, first frame 2, second frame 3, second connecting plate 4 and reinforcing plate 5, first connecting plate 1 is vertically welded on the upper end of first frame 2, first frame 2 is welded on the upper end of second frame 3, second connecting plate 4 is welded on the right-hand member of second frame 3, first frame 2 and second frame 3 constitute a trapezoid structure, reinforcing plate 5 is arranged on the inclined plane of trapezoid structure.
The first frame 2 is enclosed by a first top end plate 21, a first left side plate 22 and a first right side plate 23 to form a square structure, the first left side plate 22 and the first right side plate 23 are respectively welded with the first top end plate 21, and the width of the first top end plate 21 is equal to that of the first connecting plate 1.
The second frame 3 is enclosed by a second top end plate 31, a bottom end plate 32, a second left side plate 33 and a second right side plate 34 to form a square structure, the second top end plate 31 is parallel to the first top end plate 21, the second left side plate 33 and the second right side plate 34 are welded between the second top end plate 31 and the bottom end plate 32, the length of the second top end plate 31 is greater than that of the first top end plate 21, the width of the second top end plate 31 is equal to that of the first top end plate 21, and horizontal support rods 6 and vertical support rods 7 are welded in a staggered mode in a cavity of the second frame 3 to enhance stability.
The one end of reinforcing plate 5 is glued through the structure and is connected with first top board 21, the centre of reinforcing plate 5 is glued through the structure with second top board 31 and is connected, the other end of reinforcing plate 5 is glued through the structure and is connected with second connecting plate 4, set up the first breach 51 of U type along length direction on the reinforcing plate 5, the width of reinforcing plate 5 equals with the width of first top board 21, for the reinforcing reliability, set up the rivet screw at the position that reinforcing plate 5 and first top board 21, second connecting plate 31 contact is connected and further fix.
The second connecting plate 4 is located on the extension line of the bottom end plate 32, the second connecting plate 4 and the bottom end plate 32 are integrally formed by welding, a U-shaped second notch 41 is formed in the second connecting plate 4 along the length direction, and the second notch 41 is matched with the first notch 51 to avoid a hydrogen bottle.
In this embodiment, the first connecting plate 1 and the first left side plate 22 are located on the extension line of the second left side plate 33, and the first connecting plate 1, the first left side plate 22, and the second left side plate 33 are integrally formed by welding.
In the present embodiment, the first left side plate 22 and the first right side plate 23 are welded to the second top end plate 31.
In this embodiment, first connecting plate 1, first frame 2, second frame 3, second connecting plate 4, reinforcing plate 5, horizontal support bar 6 and vertical support bar 7 are made by aluminum alloy material, and aluminum alloy light in weight adopts aluminum alloy material can reduce before enclose the weight of bottom end rail.
The structure that this embodiment provided realizes before through setting up reinforcing plate 5 and set up horizontal support bar 6 and vertical support bar 7 in the cavity of second frame 3 and enclose the reinforcement design of bottom end rail, compares with the mode of enclosing the bottom end rail cross-section before changing, and the structure of this embodiment is not only firm, more is favorable to reducing before enclosing the weight of bottom end rail moreover, establishes the basis for realizing the automobile body lightweight.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.