CN214565702U

CN214565702U - Fuel cell hydrogen energy automobile aluminum alloy body rear floor front beam assembly structure

Info

Publication number: CN214565702U
Application number: CN202022911409.2U
Authority: CN
Inventors: 何智强; 郝义国
Original assignee: Huanggang Grove Hydrogen Automobile Co Ltd
Current assignee: Huanggang Grove Hydrogen Automobile Co Ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-11-02
Anticipated expiration: 2030-12-07

Abstract

The utility model provides a fuel cell hydrogen can car aluminum alloy automobile body rear floor front beam assembly structure, including well passageway, back floor shrouding and floor crossbeam, the floor crossbeam is right trapezoid's aluminum alloy ex-trusions for the cross-section, the oblique waist side of floor crossbeam set up forward and with well passageway rear end terminal surface laminating and welded connection, floor crossbeam upper surface is equipped with a plurality of rivet nuts, just floor crossbeam upper surface rear side edge is equipped with the back lip limit of extending backward, back floor shrouding front end edge and each rivet nut passes through bolted connection, and back floor shrouding front end edge with the junction of floor crossbeam is equipped with the sealing strip. The utility model has the advantages that: the floor beam has the advantages of high structural strength, avoidance of the use of more reinforcing plates, simple welding process, simple structure, few parts, extrusion forming process, low cost and simple process.

Description

Fuel cell hydrogen energy automobile aluminum alloy body rear floor front beam assembly structure

Technical Field

The utility model relates to a hydrogen can car technical field especially relates to a fuel cell hydrogen can car aluminum alloy automobile body rear floor front beam assembly structure.

Background

With the continuous progress of the technical process level, the aluminum alloy material automobile body is gradually an important trend for the development of new energy automobiles, particularly fuel cell hydrogen energy automobile bodies, because the aluminum alloy material automobile body better conforms to the theme of light weight of automobiles, and the aluminum alloy material automobile body is very suitable for being used as an important beam structure of the automobile body because the closed section design and the forming process of the aluminum alloy section are simpler, the structural design is more flexible, the structural strength is better, the cost is lower and the like.

In traditional car had well channel structure motorcycle type, because traditional automobile body adopted steel (aluminum plate) panel beating, generally at back floor assembly and well passageway hookup location by a sheet metal component plus a plurality of reinforcing plates component assembly for sealed and connect front and back floor assembly, this kind of structure mainly has following problem: (1) the structure can only be connected with a thin plate metal plate due to the limitation of other peripheral parts and arrangement space, although a plurality of support structures are possible, the structural strength of the structure is not as good as that of a beam structure, and the structure is not connected with a front floor assembly and a rear floor assembly, and meanwhile, a part of vehicle types also need to provide a safe distance avoiding chassis parts, so that the structure is generally complex and has larger forming difficulty; (2) because a plurality of parts are formed and are connected with the rear floor assembly and the channel structure in the front floor, the welding level is more, the welding structure is complex, and the requirement on welding precision is higher.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to solve the problem that the connection of floor assembly and well passageway exists behind traditional car, the embodiment of the utility model provides a fuel cell hydrogen can car aluminum alloy automobile body rear floor front beam assembly structure.

An embodiment of the utility model provides a fuel cell hydrogen can car aluminum alloy automobile body rear floor front beam assembly structure, including well passageway, back floor shrouding and floor crossbeam, the floor crossbeam is right trapezoid's aluminum alloy ex-trusions for the cross-section, the oblique waist side of floor crossbeam set up forward and with well passageway rear end terminal surface laminating and welded connection, floor crossbeam upper surface is equipped with a plurality of rivet nuts, just floor crossbeam upper surface rear side edge is equipped with the back lip limit that extends backward, back floor shrouding front end edge and each rivet nut passes through bolted connection, back floor shrouding front end edge lower surface is equipped with the sealing strip of horizontal setting, the sealing strip lower part with back lip limit upper surface laminating, the sealing strip quilt back shrouding floor front end edge with the back lip limit presss from both sides tightly.

Furthermore, a front lip edge extending forwards is arranged on the front side edge of the lower surface of the floor beam, the upper surface of the front lip edge is attached to and welded with the front floor, and the middle channel is welded and fixed in the middle of the front floor.

Furthermore, the middle part of the floor beam is provided with a through hole which penetrates through the floor beam from front to back, the rear end of the middle channel is connected with the edge of the through hole in a welding mode, and the through hole is communicated with the lower portion of the middle channel.

Further, the upper surface of the floor beam is provided with a plurality of vertically arranged threaded sleeves, and the threaded sleeves are used for connecting a rear auxiliary frame.

Furthermore, the middle part of the floor beam is provided with a reinforcing rib which is transversely arranged.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the utility model discloses a fuel cell hydrogen can car aluminum alloy automobile body rear floor front beam assembly structure, floor crossbeam adopt the aluminum alloy ex-trusions structure intensity of closed cross-section high, avoid using more reinforcing plate, the welding process is simple, floor crossbeam simple structure, the part number is few, adopt extrusion molding technology, with low costs, simple process; the floor beam and the rear floor sealing plate are sealed in a sealing strip type through bolts, so that the sealing performance is excellent; set up the installation demand that the threaded sleeve satisfies part on every side on the floor crossbeam, compare traditional projection nut, structural strength is better, and operating is simpler, and mechanical connection is more environmental protection, and maintainability welds better, is more applicable to the aluminum alloy material motorcycle type.

Drawings

FIG. 1 is an overall schematic view of a fuel cell hydrogen energy automobile aluminum alloy body rear floor front beam assembly structure of the present invention;

fig. 2 is a perspective view of the floor crossmember 1 in fig. 1;

FIG. 3 is a cross-sectional view of the floor beam 1 of FIG. 2;

FIG. 4 is a schematic sectional view taken along line A-A of FIG. 1;

FIG. 5 is a schematic sectional view taken along line B-B in FIG. 1;

fig. 6 is a schematic cross-sectional view of C-C in fig. 1.

In the figure: 1-floor beam, 2-middle channel, 3-rear floor sealing plate, 4-front floor, 5-front edge of rear floor sealing plate, 6-thread bushing, 7-bolt, 8-front lip edge, 9-rear lip edge, 10-sealing strip, 11-reinforcing rib, 12-via hole and 13-rivet nut.

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.

Referring to fig. 1, an embodiment of the present invention provides a fuel cell hydrogen energy automobile aluminum alloy body rear floor front beam assembly structure, which includes a middle channel 2, a rear floor sealing plate 3 and a floor beam 1.

Specifically, referring to fig. 2 and 3, the floor cross member 1 is an aluminum alloy section with a right trapezoid cross section, the upper surface and the lower surface of the floor cross member 1 are arranged in parallel, the oblique waist side of the floor cross member 1 is arranged forward, and the right waist side of the floor cross member 1 is arranged backward. The floor beam 1 can be integrally formed by extruding aluminum alloy, and has the advantages of simple process and high processing efficiency.

In order to improve the strength of the floor beam 1, the middle part of the floor beam 1 is provided with the reinforcing rib 11 which is transversely arranged, so that the floor beam 1 forms a high-strength structure with a cross section in a shape like a Chinese character 'ri', the use of more reinforcing plate structures is avoided, and the welding process is omitted.

Referring to fig. 1, 2, 3 and 4, the center tunnel 2 is disposed at the front side of the floor beam 1, a rear end port of the center tunnel 2 is an inclined end surface, the front end port of the center tunnel 2 is exactly aligned with the inclined waist side surface of the floor beam 1, and the rear end port of the center tunnel 2 is fixedly welded to the inclined waist side surface of the floor beam 1. The front edge of the lower surface of the floor beam 1 is provided with a front lip 8 extending forwards, the upper surface of the front lip 8 is jointed and welded with the front floor 4, and the middle channel 2 is welded and fixed in the middle of the front floor 4.

Preferably, referring to fig. 2 and 6, a through hole 12 penetrating through the floor cross beam 1 from front to back is formed in the middle of the floor cross beam 1, the through hole 12 is located on an extension line of the middle channel 2, the through hole 12 is a rectangular hole, the sectional area of the through hole is smaller than that of the middle channel 2, the rear end of the middle channel 2 is connected with the edge of the through hole 12 in a welding manner, and the through hole 12 is communicated with the inner lower portion of the middle channel 2. In this way, the rear end of the center channel 2 surrounds the via hole 12, and the via hole 12 and the center channel 2 are sealed. The inner space of the middle channel 2 and the inner space of the via hole 12 form an avoiding pipeline, and enough space is provided for installing the pipeline in the vehicle.

Referring to fig. 1, 2 and 5, a plurality of blind rivet nuts 13 are disposed on the upper surface of the floor beam 1, and all the blind rivet nuts 13 are arranged in a horizontal straight line. The rear edge of the upper surface of the floor beam 1 is provided with a rear lip edge 9 extending backwards, the front end edge 5 of the rear floor sealing plate 3 covers the rear lip edge 9, and the front end edge 5 of the rear floor sealing plate 3 is connected with each rivet nut 13 through a bolt 7. Here rear floor shrouding 3 front end edge 5 lower surface is equipped with the sealing strip 10 of horizontal setting, sealing strip 10 lower part support in back lip 9 upper surface, sealing strip 10 lower part with back lip 9 upper surface laminating, sealing strip 10 quilt rear floor shrouding 3 front end edge 5 with back lip 9 presss from both sides tightly. The sealing effect between the rear floor sealing plate 3 and the floor beam 1 is enhanced through the extrusion sealing of the sealing strips 10.

In addition, the upper surface of the floor beam 1 is provided with a plurality of vertically arranged threaded sleeves 6. Here, a plurality of prefabricated holes are arranged on the upper surface of the floor cross beam 1, and the threaded sleeves 6 are respectively pressed into the prefabricated holes through press riveting. The threaded bushing 6 is used for mounting and connecting surrounding parts, such as a rear subframe and the like.

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.

Claims

1. The utility model provides a floor front beam assembly structure behind fuel cell hydrogen energy automobile aluminum alloy automobile body which characterized in that: including well passageway, back floor shrouding and floor crossbeam, the floor crossbeam is right trapezoid's aluminum alloy ex-trusions for the cross-section, floor crossbeam's oblique waist side set up forward and with well passageway rear end terminal surface laminating and welded connection, floor crossbeam upper surface is equipped with a plurality of rivet nuts, just floor crossbeam upper surface rear side edge is equipped with the back lip limit that extends backward, back floor shrouding front end edge and each rivet nuts passes through bolted connection, back floor shrouding front end edge lower surface is equipped with the sealing strip of horizontal setting, the sealing strip lower part with back lip limit upper surface laminating, the sealing strip quilt back floor shrouding front end edge with back lip limit presss from both sides tight lip limit.

2. The fuel cell hydrogen energy automobile aluminum alloy body rear floor front beam assembly structure of claim 1, wherein: the front side edge of the lower surface of the floor beam is provided with a front lip edge extending forwards, the upper surface of the front lip edge is attached to and welded with the front floor, and the middle channel is welded and fixed in the middle of the front floor.

3. The fuel cell hydrogen energy automobile aluminum alloy body rear floor front beam assembly structure of claim 1, wherein: the floor beam is characterized in that a through hole penetrating from front to back is formed in the middle of the floor beam, the rear end of the middle channel is connected with the edge of the through hole in a welded mode, and the through hole is communicated with the lower portion of the middle channel.

4. The fuel cell hydrogen energy automobile aluminum alloy body rear floor front beam assembly structure of claim 1, wherein: the upper surface of the floor beam is provided with a plurality of vertically arranged threaded sleeves, and the threaded sleeves are used for connecting a rear auxiliary frame.

5. The fuel cell hydrogen energy automobile aluminum alloy body rear floor front beam assembly structure of claim 1, wherein: and the middle part of the floor beam is provided with a reinforcing rib which is transversely arranged.