CN209366292U - car floor structure - Google Patents

Abstract

The utility model discloses an automobile floor structure, which comprises a floor, a longitudinal beam, a battery pack, a threshold box and a door rail box; wherein, the longitudinal beam includes a floor connecting end connected in sequence, an L-shaped longitudinal beam main body and a threshold box Connecting end; the L-shaped longitudinal beam main body includes a main body vertical plate and a main body horizontal plate; the door guide rail box is installed on the outer surface of the main body vertical plate, and the main body horizontal plate is located below the vehicle door guide rail box The sill box is fixedly installed on the connection end of the sill box; the battery pack is located inside the main body riser and below the floor; the battery pack is provided with a mounting bracket, and the installation The bracket is fixedly connected with the main body horizontal plate. Changing the longitudinal beams and door rail boxes from the traditional left-right arrangement to the up-down arrangement, while ensuring the original structural rigidity of the body, the layout space of the battery pack is improved, and the coexistence of electric drive and sliding door functions is realized.

Description

car floor structure

technical field

The utility model relates to the technical field of automobiles, in particular to an automobile floor structure applied to MPV vehicles.

Background technique

As people's requirements for all aspects of cars are increasing, more and more families will consider MPV models that are safer, more comfortable, and more suitable for family members to travel. MPV models with sliding door functions are even more popular. In addition, with the continuous increase of automobile production and ownership, the energy consumption and harmful gas emissions of automobiles are increasing year by year. Under the increasingly scarce energy situation and deteriorating environmental conditions, the research and development of energy-saving and zero-emission electric vehicle technology is the only way to reduce energy consumption and environmental pollution. Therefore, MPV models with electric drive and sliding door function have emerged at the historic moment and will become the mainstream.

For the traditionally powered MPV models with sliding door function, a guide rail box will be arranged under the floor between the B-pillar and C-pillar of the body to provide installation space for the guide rails that realize the sliding function, and the longitudinal beam as a whole Arranged on the inner side of the guide rail box, it is used to carry the body structure.

For the electric-driven MPV models with sliding door function, the battery pack needs to be arranged under the floor, and the width is wider, which will occupy the space of the original longitudinal beam. The installation space of the battery pack is the main factor to be considered in realizing the electric drive of the sliding door.

Utility model content

The purpose of the utility model is to provide an automobile floor structure capable of expanding the installation space of the electromagnetic package.

The technical scheme of the utility model provides an automobile floor structure, including a floor, a longitudinal beam, a battery pack, a threshold box and a door rail box;

Wherein, the stringer includes a floor connection end, an L-shaped stringer body and a threshold box connection end connected in sequence;

The L-shaped longitudinal beam body includes a main body vertical plate and a main body horizontal plate connected with the main body vertical plate;

The door guide box is installed on the outer surface of the main body riser;

The floor connection end is connected to the top of the main body riser and connected to the floor;

The main body horizontal plate is connected to the bottom end of the main body vertical plate and extends toward the outside of the main body vertical plate, and the main body horizontal plate is located below the door guide rail box;

The threshold box connection end is connected to the end of the main body horizontal plate, the threshold box is fixedly installed on the threshold box connection end, and the threshold box is located below the door rail box;

The battery pack is located inside the main body riser and below the floor;

The battery pack is provided with a mounting bracket, and the mounting bracket is fixedly connected with the main body horizontal plate.

Further, the floor connection end is a connection plate, the connection plate extends towards the inner side of the main body riser, and the connection plate is welded on the lower surface of the floor.

Further, the floor connection end, the longitudinal beam main body and the rocker box connection end are integrally formed.

Further, the door guide box includes a guide box bottom plate, a guide rail box top plate, and a guide rail box side plate connected between the guide rail box bottom plate and the guide rail box top plate;

The guide rail box side plate is welded on the outer surface of the main body vertical plate, and the guide rail box top plate is welded on the lower surface of the floor;

The rail box top plate is located outside the floor connecting end.

Further, the sill box includes a sill box bottom plate, a sill box top plate, and a sill box side plate connected between the sill box top plate and the sill box bottom plate;

The bottom plate of the sill box is welded on the connecting end of the sill box;

A bottom plate connecting plate is arranged on the bottom plate of the guide rail box, and the bottom plate connecting plate is welded to the top plate of the sill box.

Further, the bottom connecting plate includes a connecting plate horizontal plate and a connecting plate vertical plate;

The vertical plate of the connecting plate is connected with the horizontal plate of the connecting plate in an L shape;

The vertical plate of the connecting plate is welded to the top plate of the sill box, and the horizontal plate of the connecting plate is welded to the bottom plate of the guide rail box;

A horizontal plate bending portion is also arranged on the horizontal plate of the connecting plate.

Further, a stepped portion is provided on the connecting end of the sill box;

The step portion includes a step portion horizontal plate and a step portion riser connected with the step portion horizontal plate;

The bottom plate of the sill box is welded to the horizontal plate of the step, and the side plate of the sill box is welded to the vertical plate of the step.

Further, a side panel bending part is provided on the side panel of the rocker box.

Further, a guide rail is provided on the bottom plate of the guide rail box.

Further, a connection part is provided on the side of the battery pack close to the main body riser;

The installation bracket includes a support vertical plate and a support horizontal plate connected with the support vertical plate, the support horizontal plate is connected to the lower end of the support vertical plate, and the support horizontal plate is connected with the support vertical plate L-shaped;

The support vertical plate is connected to the connecting portion, the support vertical plate is located inside the main body vertical plate, and the support horizontal plate is welded on the lower surface of the main body horizontal plate.

Adopt above-mentioned technical scheme, have following beneficial effect:

The automobile floor structure provided by the utility model, by setting the longitudinal beam to be composed of the floor connecting end, the L-shaped longitudinal beam main body and the threshold box connecting end, and arranging the main horizontal plate of the longitudinal beam main body below the door rail box, The installation space inside the main vertical plate of the longitudinal beam main body is expanded to install the battery pack.

Connecting the floor connecting end to the floor, and connecting the sill connecting end to the sill box improves the installation stability of the sill box, and helps to improve the rigidity of the entire car floor structure, improving the stability of the structure.

Description of drawings

Fig. 1 is the structural representation of the automobile floor structure that an embodiment of the present invention provides;

Fig. 2 is the structural representation of stringer;

Fig. 3 is a schematic diagram of cooperation between the car door and the car floor structure;

Figure 4 is a schematic diagram of the connection between the sill box and the door rail box.

Detailed ways

The specific embodiment of the utility model will be further described below in conjunction with the accompanying drawings. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

The vertical boards involved in the utility model are boards arranged vertically or roughly vertically during installation, and the horizontal boards are boards arranged horizontally or roughly horizontally during installation.

As shown in Figures 1-2, the automobile floor structure provided by an embodiment of the utility model includes a floor 1, a longitudinal beam 2, a battery pack 3, a threshold box 4 and a door rail box 5.

Wherein, the longitudinal beam 2 includes a floor connecting end 21 , an L-shaped longitudinal beam main body 22 and a sill box connecting end 23 which are sequentially connected.

The L-shaped longitudinal beam body 22 includes a main body vertical plate 221 and a main body horizontal plate 222 connected with the main body vertical plate 221 .

The door guide box 5 is installed on the outer surface of the main body riser 221 .

The floor connecting end 21 is connected to the top of the main body riser 221 and connected to the floor 1 .

The main body horizontal plate 222 is connected to the bottom of the main body vertical plate 221 and extends toward the outside of the main body vertical plate 221 . The main body horizontal plate 222 is located below the door guide rail box 5 .

The threshold box connecting end 23 is connected on the end of the main body cross plate 222 , the threshold box 4 is fixedly installed on the threshold box connecting end 23 , and the threshold box 4 is located below the door rail box 5 .

The battery pack 3 is located inside the main body riser 221 and below the floor 1 .

The battery pack 3 is provided with a mounting bracket 31 , and the mounting bracket 31 is fixedly connected with the main body horizontal plate 222 .

The automobile floor structure provided by the utility model is mainly suitable for floor design of MPV vehicles. The automobile floor structure is mainly composed of a floor 1 , a longitudinal beam 2 , a battery pack 3 , a threshold box 4 and a door rail box 5 .

The longitudinal beam 2 is composed of a floor connecting end 21, a longitudinal beam main body 22 and a door sill box connecting end 23 connected in sequence. Wherein the longitudinal beam main body 22 is L-shaped, which includes a main body vertical plate 221 and a main body horizontal plate 222 connected to the lower end of the main body vertical plate 221.

The door guide rail box 5 is used for installing the guide rail, so that the car door can slide on the guide rail.

The door guide rail box 5 is fixedly installed on the outer surface of the main body riser 221 .

The inside and outside involved in the utility model refers to the division along the direction of the vehicle width. If a certain surface is facing the outside of the vehicle body during installation, then the surface is the outer surface; if a certain surface is facing the inside of the vehicle body, the surface is for the inner surface.

The floor connecting end 21 is fixedly connected to the lower surface of the floor 1 , the main body horizontal plate 222 is connected to the lower end of the main body vertical plate 221 and extends toward the outside of the main body vertical plate 221 , and the main body horizontal plate 222 is located below the door guide rail box 5 . The threshold box connecting end 23 is connected to the end of the main body horizontal plate 222 , and the threshold box 3 is fixedly installed on the threshold box connecting end 23 .

The structural design of the longitudinal beam 2 is such that the door guide box 5 and the main body horizontal plate 222 of the longitudinal beam 2 are arranged up and down, while the main body vertical plate 221 is directly connected with the door guide box 5. Does not take up much horizontal space.

Thus, a larger installation space is formed between the inner side of the main body riser 221 and the lower side of the floor 1 for installing the battery pack 3 .

There is a mounting bracket 31 on the battery pack 3, which is connected to the main body horizontal plate 311, which improves the stability of the connection.

Thus, the automobile floor structure provided by the utility model, by setting the longitudinal beam 2 to be composed of the floor connection end 21, the L-shaped longitudinal beam main body 22 and the threshold box connection end 23, and the main body horizontal plate of the longitudinal beam main body 22 222 is arranged under the door guide rail box 5 to expand the installation space inside the main body riser 222 of the longitudinal beam main body 22 for installing the battery pack 3 .

It connects the floor connecting end 21 with the floor 1, and connects the sill connecting end 23 with the sill box 3, which improves the installation stability of the sill box 3, and is conducive to improving the rigidity of the entire automobile floor structure and improving the structural stability.

Preferably, as shown in FIGS. 1-2 , the floor connecting end 21 is a connecting plate extending toward the inner side of the main vertical plate, and the connecting plate is welded on the lower surface of the floor 1 . Such setting can avoid interference with the door guide rail box 5 during installation, and facilitate welding installation.

Preferably, the floor connecting end 21 , the longitudinal beam main body 22 and the threshold box connecting end 23 are integrally formed, which improves the structural strength of the longitudinal beam 2 and prolongs the service life.

Preferably, as shown in FIGS. 1-4 , the door rail box 5 includes a rail box bottom plate 51 , a rail box top plate 52 and a rail box side plate 53 connected between the track box bottom plate 51 and the rail box top plate 52 .

The rail box side plate 53 is welded on the outer surface of the main body vertical plate 221 , and the rail box top plate 52 is welded on the lower surface of the floor 1 .

The rail box top plate 51 is located outside the floor connecting end 21 .

The bottom plate 51 of the guide rail box, the top plate 52 of the guide rail box and the side plates 53 of the guide rail box are integrally formed with high structural strength.

A guide rail installation space 50 is formed between the guide rail box bottom plate 51 , the guide rail box top plate 52 and the guide rail box side plate 53 for installing the guide rail 6 .

During assembly, the guide rail box side plate 53 is welded on the outer surface of the main body riser 221, the guide rail box top plate 52 is welded on the lower surface of the floor 1, and the guide rail box top plate 51 is positioned at the outside of the floor connection end 21, avoiding installation When interfering with the longitudinal beam 2, it is convenient for welding and installation.

Preferably, as shown in Figures 1-4, the sill box 4 includes a sill box bottom plate 41, a sill box top plate 42, and a sill box side plate 43 connected between the sill box top plate 42 and the sill box bottom plate 41.

The threshold box bottom plate 41 is welded on the threshold box connecting end 23 .

A bottom plate connecting plate 54 is arranged on the guide rail box bottom plate 51 , and the bottom plate connecting plate 54 is welded to the threshold box top plate 42 .

The sill box bottom plate 41 , the sill box top plate 42 and the sill box side plate 43 are integrally formed with high structural strength.

A sill box installation space 40 is formed between the sill box bottom plate 41 , the sill box top plate 42 and the sill box side plate 43 .

The threshold box top plate 42 is connected with the guide rail box bottom plate 51 through the bottom plate connecting plate 54, which improves the connection stability.

During assembly, the threshold box bottom plate 41 is welded on the threshold box connecting end 23, and the bottom plate connecting plate 54 is welded on the threshold box top plate 42, which is convenient for welding and installation, and has a stable structure.

Preferably, as shown in FIG. 4 , the base connecting plate 54 includes a connecting plate horizontal plate 542 and a connecting plate vertical plate 541 . The connecting plate vertical plate 541 is connected with the connecting plate horizontal plate 542 to form an L shape.

The connecting plate vertical plate 541 is welded with the threshold box top plate 42, and the connecting plate horizontal plate 542 is welded with the guide rail box bottom plate 51. A horizontal plate bending portion 5421 is also provided on the connecting plate horizontal plate 542 .

Bottom plate connecting plate 54 is set to L shape, and it is integrally formed by connecting plate horizontal plate 542 and connecting plate vertical plate 541, and structural strength is high, and is convenient to weld with upper guide rail box bottom plate 51 and below sill box top plate 42.

During assembling, the connecting plate vertical plate 541 is welded on the threshold box top plate 42, and the connecting plate horizontal plate 542 is welded on the guide rail box bottom plate 51.

In order to improve the structural strength, the connecting plate horizontal plate 542 is also provided with a horizontal plate bending part 5421, which can adapt to the guide rail box bottom plate 51 of different heights on the one hand, and on the other hand can improve the structural strength and prolong the service life.

Preferably, as shown in FIGS. 2 and 4 , a stepped portion 231 is provided on the sill box connection end 23 .

The stepped portion 231 includes a stepped portion horizontal plate 2312 and a stepped portion vertical plate 2311 connected to the stepped portion horizontal plate 2312 .

The sill box bottom plate 41 is welded on the step portion horizontal plate 2312 , and the sill box side plate 43 is welded to the step portion vertical plate 2311 .

The step portion 231 can be conveniently welded and connected with the sill box 4, and the stability of the connection can also be improved.

Specifically, the stepped portion 231 is configured to be integrally formed by the stepped portion horizontal plate 2312 and the stepped portion vertical plate 2311 . The step portion horizontal plate 2312 and the step portion vertical plate 2311 are connected in an L shape.

The vertical plate 2311 of the stepped portion is connected to the horizontal plate 222 of the main body.

During assembly, the sill box bottom plate 41 is welded to the step horizontal plate 2312, and the sill box side plate 43 is welded to the step vertical plate 2311, which improves the structural strength and connection stability, and facilitates the connection of the sill box 4 and the sill box Solder connection at end 23.

Preferably, as shown in Figure 3-4, a side plate bending part 431 is provided on the side plate 43 of the sill box. On the one hand, it can adapt to sills of different heights, and adjust the distance between the top plate 42 of the sill box and the bottom plate 41 of the sill box. On the other hand, it can improve the structural strength and prolong the service life.

Preferably, as shown in FIG. 3 , a guide rail 6 is provided on the bottom plate 51 of the guide rail box, and the door and the guide rail 6 are connected by a guide rail bracket, so that the door 7 can move along the guide rail 6 and slide to open and close the door.

Preferably, as shown in FIG. 1 , a connecting portion 32 is provided on the side of the battery pack 3 close to the main body riser 221 .

The mounting bracket 31 includes a bracket vertical plate 311 and a bracket horizontal plate 312 connected with the bracket vertical plate 311 . The support horizontal plate 312 is connected to the lower end of the support vertical plate 311 , and the support horizontal plate 312 and the support vertical plate 311 are connected in an L shape.

The support vertical plate 311 is connected with the connecting portion 32 , the support vertical plate 311 is located inside the main body vertical plate 221 , and the support horizontal plate 312 is welded on the lower surface of the main body horizontal plate 222 .

By setting the mounting bracket 31 as an L-shaped bracket, which is integrally formed by the bracket vertical plate 311 and the bracket horizontal plate 312, the installation and placement of the battery pack 3 can be facilitated.

Specifically, a connecting portion 32 is extended on the battery pack 3, which is located near the side of the main body vertical plate 221, the bracket vertical plate 311 is welded to the connecting portion 32, and the bracket horizontal plate 312 is welded on the lower surface of the main body horizontal plate 222, It is convenient for welding and installation of the battery pack 3 .

To sum up, the new car floor structure provided by the utility model changes the arrangement of the longitudinal beam and the door rail box from the traditional left-right direction to the up-and-down direction. The space is arranged to realize the coexistence of electric drive and sliding door functions.

According to needs, the above technical solutions can be combined to achieve the best technical effect.

What has been described above is only the principle and preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, several other modifications can be made on the basis of the principle of the utility model, which should also be regarded as the protection scope of the utility model.

Claims (10)

1. A kind of automobile floor structure, it is characterized in that, comprises floor, stringer, battery pack, threshold box and car door rail box; Wherein, the stringer includes a floor connection end, an L-shaped stringer body and a threshold box connection end connected in sequence; The L-shaped longitudinal beam body includes a main body vertical plate and a main body horizontal plate connected with the main body vertical plate; The door guide box is installed on the outer surface of the main body riser; The floor connection end is connected to the top of the main body riser and connected to the floor; The main body horizontal plate is connected to the bottom end of the main body vertical plate and extends toward the outside of the main body vertical plate, and the main body horizontal plate is located below the door guide rail box; The threshold box connection end is connected to the end of the main body horizontal plate, the threshold box is fixedly installed on the threshold box connection end, and the threshold box is located below the door rail box; The battery pack is located inside the main body riser and below the floor; The battery pack is provided with a mounting bracket, and the mounting bracket is fixedly connected with the main body horizontal plate. 2. The automobile floor structure according to claim 1, wherein the floor connecting end is a connecting plate extending towards the inner side of the main body riser, and the connecting plate is welded to the bottom of the floor on the lower surface. 3 . The automobile floor structure according to claim 1 , wherein the floor connection end, the longitudinal beam main body and the sill box connection end are integrally formed. 4 . 4. The automobile floor structure according to claim 1, wherein the door rail box comprises a rail box bottom plate, a rail box top plate, and a rail box side connected between the rail box bottom plate and the rail box top plate plate; The guide rail box side plate is welded on the outer surface of the main body vertical plate, and the guide rail box top plate is welded on the lower surface of the floor; The rail box top plate is located outside the floor connecting end. 5. The automobile floor structure according to claim 4, wherein the sill box comprises a sill box bottom plate, a sill box top plate, and a sill box side plate connected between the sill box top plate and the sill box bottom plate ; The bottom plate of the sill box is welded on the connecting end of the sill box; A bottom plate connecting plate is arranged on the bottom plate of the guide rail box, and the bottom plate connecting plate is welded to the top plate of the sill box. 6. The automobile floor structure according to claim 5, characterized in that, the base connecting plate comprises a connecting plate horizontal plate and a connecting plate vertical plate; The vertical plate of the connecting plate is connected with the horizontal plate of the connecting plate in an L shape; The vertical plate of the connecting plate is welded to the top plate of the sill box, and the horizontal plate of the connecting plate is welded to the bottom plate of the guide rail box; A horizontal plate bending portion is also arranged on the horizontal plate of the connecting plate. 7. The automobile floor structure according to claim 5, characterized in that, a stepped portion is provided on the connecting end of the threshold box; The step portion includes a step portion horizontal plate and a step portion riser connected with the step portion horizontal plate; The bottom plate of the sill box is welded to the horizontal plate of the step, and the side plate of the sill box is welded to the vertical plate of the step. 8 . The automobile floor structure according to claim 5 , wherein a side panel bending portion is provided on the rocker box side panel. 9. The automobile floor structure according to claim 4, wherein a guide rail is provided on the bottom plate of the guide rail box. 10. The automobile floor structure according to claim 1, characterized in that, a connecting portion is provided on the side of the battery pack close to the main body riser; The mounting bracket includes a support vertical plate and a support horizontal plate connected with the support vertical plate, the support horizontal plate is connected to the lower end of the support vertical plate, and the support horizontal plate is connected with the support vertical plate L-shaped; The support vertical plate is connected to the connecting portion, the support vertical plate is located inside the main body vertical plate, and the support horizontal plate is welded on the lower surface of the main body horizontal plate.