CN216833963U - Floor structure and car before automobile body - Google Patents

Abstract

The utility model provides a floor structure and car before automobile body, the utility model discloses a floor structure is including the well passageway that is located the automobile body middle part, and connects respectively the preceding floor panel of well passageway both sides, the bottom of well passageway is connected with the well passageway longeron of arranging along automobile body length direction, well passageway longeron is for setting up respectively two of well passageway both sides edge, and both sides well passageway longeron divides the roof beam body to constitute by consecutive multistage longeron, and at each section the longeron divides and is equipped with a plurality of battery package installation departments on the roof beam body respectively. The utility model discloses a floor structure before automobile body through the sectional type structure of well passageway longeron, does benefit to configuration battery package mounting point, can satisfy the requirement of arranging of different forms's battery package mounting point.

Description

Floor structure and car before automobile body

Technical Field

The utility model relates to the technical field of automobiles, in particular to floor structure before automobile body. And simultaneously, the utility model discloses still relate to an automobile with above-mentioned automobile body front floor structure.

Background

The front floor structure is used as a main component of the middle part of an automobile body, not only plays a role of sealing the bottom of a passenger compartment, but also is an installation foundation of an automobile front seat, and in most electric automobile types or hybrid automobile types, the bottom of the front floor is also a main installation area of a battery pack. In order to mount the battery pack and to increase the reliability of the battery pack mounted on the bottom of the front floor, a middle mounting point of the battery pack is usually provided at a middle passage position in the front floor structure.

The battery mounting points are typically provided on the stringer structure at the centre passage. However, in the prior art, the longitudinal beam structure at the middle channel is mostly prepared in an integrated forming mode, and the longitudinal beam structure is fixed in shape. The longitudinal beam structure at the middle channel cannot easily adapt to the change of the mounting point positions of different battery packs during design, so that the arrangement requirements of the mounting points of the battery packs in different forms are difficult to meet.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a floor structure before automobile body to can satisfy the arrangement requirement of different forms's battery package mounting point.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a floor structure before automobile body, is including being located the well passageway in automobile body middle part, and connect respectively the preceding floor panel of well passageway both sides, the bottom of well passageway is connected with the well passageway longeron of arranging along automobile body length direction, well passageway longeron is for setting up respectively two of well passageway both sides edge, and both sides well passageway longeron comprises the multistage longeron branch roof beam body that links to each other in proper order, and at each section the longeron is equipped with a plurality of battery package installation departments on dividing the roof beam body respectively.

Furthermore, a middle channel cross beam is connected between the middle channel longitudinal beams on the two sides.

The front seat front mounting beam and the front seat rear mounting beam are arranged along the length direction of the vehicle body at intervals, and the front seat front mounting beam and the front seat rear mounting beam are connected with the middle channel and the front floor panels on two sides.

Furthermore, the connecting position between the adjacent longitudinal beam sub-beam bodies is vertically and correspondingly arranged with the front mounting cross beam of the front seat or the rear mounting cross beam of the front seat.

Furthermore, the front parts of the front floor panels on the two sides are respectively connected with front floor reinforcing beams arranged side by side with the middle channel, and the front seat front mounting beam is connected with the front floor reinforcing beams.

Further, the front seat front mounting beam is arranged across the middle channel, or the front seat front mounting beam is two sections respectively connected to two opposite sides of the middle channel.

Further, the front seat rear mounting cross member is disposed across the center tunnel.

Furthermore, a beam reinforcing plate is arranged in the front seat front mounting beam and/or the front seat rear mounting beam, and/or a seat mounting reinforcing bracket positioned at the front seat mounting point is arranged in at least one of the front seat front mounting beam and the front seat rear mounting beam.

Further, the two ends of the front seat front mounting beam and/or the front seat rear mounting beam are respectively provided with a threshold beam connecting part, or the two ends of the front seat front mounting beam and at least one of the front seat rear mounting beams are respectively connected with a connecting beam, and the connecting beam is provided with a threshold beam connecting part.

Compared with the prior art, the utility model discloses following advantage has:

the utility model discloses a floor structure before the automobile body, the structural strength and the vertical power transmission performance of passageway position in the setting of well passageway longeron can promote, and make well passageway longeron divide the roof beam body to constitute by consecutive multistage longeron, and set up the battery package installation department on each section longeron divides the roof beam body respectively, the passageway longeron is the characteristics of sectional type structure in the usable, divide the combination of the roof beam body through different longerons, do benefit to the configuration of the installation point of different battery packages, thereby can satisfy the requirement of arranging of the battery package installation point of different forms.

In addition, the middle channel cross beams are connected between the middle channel longitudinal beams on the two sides, so that the transverse structural strength and the force transmission effect of the middle channel position can be improved. And set up the strengthening rib on the preceding floor panel, floor plate structural strength before can promoting for strengthening rib symmetrical arrangement on the floor panel before both sides, usable its commonalization is arranged, promotes the design convenience. The connecting position between the adjacent longitudinal beam sub-beam bodies is vertically and correspondingly arranged with the front mounting beam of the front seat or the rear mounting beam of the front seat, so that the integral rigidity of the front floor structure can be ensured on the basis of the middle channel longitudinal beam subsection.

In addition, the front seat front mounting beam and the front seat rear mounting beam are connected with the middle channel and the front floor panel, so that the stability of the seat mounting beam can be ensured, the integral structural strength of the front floor structure can be improved, and particularly the transverse force transmission effect of the front floor position can be improved. The arrangement of the front floor reinforcing beam is beneficial to the transmission of the collision force transmitted by the longitudinal beam of the cabin to the front floor panel and the middle channel, and is beneficial to the transmission and dispersion of the collision force at the position of the front floor, thereby improving the collision performance of the front floor. And the setting of crossbeam reinforcing plate and seat installation strengthening support then can guarantee the reliability of front seat installation, and the setting of threshold roof beam connecting portion also can be convenient for with the threshold roof beam between be connected.

Another object of the utility model is to provide a car, have in the automobile body of car as above the automobile body front floor structure, both sides well passageway longeron links to each other with the rear end of corresponding side cabin longeron through the longeron connecting plate respectively, just one side of longeron connecting plate with the rear end of cabin longeron links to each other, and the opposite side of longeron connecting plate is formed with the link that extends backward, the link with well passageway longeron links to each other.

The utility model discloses a car is through adopting foretell automobile body front floor structure, can utilize the characteristics that the well passageway longeron is the sectional type structure, divides the combination of roof beam body through different longerons, and then does benefit to the configuration of the mounting point of different battery packages to and can satisfy the requirement of arranging of the battery package mounting point of different forms.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic view of a front floor structure of a vehicle body according to a first embodiment of the present invention;

FIG. 2 is a back schematic view of the structure shown in FIG. 1;

FIG. 3 is a schematic view of FIG. 2 with the front floor panel removed;

fig. 4 is a schematic diagram illustrating a structure of a center tunnel longitudinal beam according to a first embodiment of the present invention;

fig. 5 is a schematic structural view of a front floor panel according to a first embodiment of the present invention;

fig. 6 is a schematic structural view of a beam reinforcing plate according to a first embodiment of the present invention;

fig. 7 is a schematic structural view of a seat mounting reinforcing bracket according to a first embodiment of the present invention;

fig. 8 is a schematic structural view of a connection beam according to a first embodiment of the present invention;

fig. 9 is a schematic view of a front floor structure of a vehicle body according to a second embodiment of the present invention;

FIG. 10 is a back schematic view of the structure shown in FIG. 9;

FIG. 11 is a schematic view of FIG. 10 with the front floor panel removed;

fig. 12 is a schematic view of a middle tunnel longitudinal beam according to a second embodiment of the present invention;

FIG. 13 is a schematic view of FIG. 9 with the front floor panel removed;

fig. 14 is a schematic structural view of a beam reinforcing plate according to a second embodiment of the present invention;

fig. 15 is a schematic view of a structure of a vehicle body part according to a third embodiment of the present invention;

fig. 16 is a partially enlarged view of a portion a in fig. 15.

Description of reference numerals:

1. a middle channel; 2. a front floor panel; 3. a front floor reinforcement beam; 4. a center channel stringer; 5. a beam is arranged in front of the front seat; 6. a beam is arranged behind the front seat; 7. a beam stiffener; 8. a seat mounting reinforcing bracket; 9. a threshold beam connection; 10. a connecting beam; 11. a center channel beam; 12. a nacelle stringer; 13. a threshold beam; 14. a longitudinal beam connecting plate;

201. reinforcing ribs;

401. a first longitudinal beam split body; 402. a second longitudinal beam split body; 403. a third longitudinal beam splitting body;

701. a beam reinforcing plate is arranged in front; 702. a beam reinforcing plate is arranged at the rear part;

121. a front floor connection section;

141. and a connecting end.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The present embodiment relates to a vehicle body front floor structure, as shown in fig. 1 to 3, which includes a center tunnel 1 located in the middle of a vehicle body, and front floor panels 2 connected to both sides of the center tunnel 1, respectively, and as one of the main points of the present embodiment, a center tunnel side member 4 arranged in the length direction of the vehicle body is connected to the bottom of the center tunnel 1, and the center tunnel side members 4 are two members respectively disposed at both side edges of the center tunnel 1. Meanwhile, the middle channel longitudinal beams 4 on the two sides are also formed by multi-section longitudinal beam sub-beam bodies which are sequentially connected, and a plurality of battery pack installation parts are respectively arranged on each section of longitudinal beam sub-beam body.

The center channel longitudinal beam 4 formed by a plurality of longitudinal beam sub-beam bodies may be specifically as shown in fig. 4, and in this embodiment, the center channel longitudinal beams 4 on both sides are formed by two longitudinal beam sub-beam bodies, which are a first longitudinal beam sub-beam body 401 and a second longitudinal beam sub-beam body 402 for convenience of description. The two sections of longitudinal beam sub-beam bodies are all of stamping forming sheet metal beam body structures, and can be connected together in a lap joint mode to form the integral middle channel longitudinal beam 4.

In addition, flanges are respectively formed at two side edges of the first longitudinal beam split body 401 and the second longitudinal beam split body 402, the flanges on each side are used for connecting with the center channel 1, and in specific implementation, each longitudinal beam split body and the center channel 1 are generally fixedly connected together by welding.

In this embodiment, for the battery pack mounting point provided on each longitudinal beam split beam body, for example, a mounting hole provided on each longitudinal beam split beam body may be used as the battery pack mounting point, and a mounting sleeve may be provided corresponding to the mounting hole to mount the battery pack by a bolt. Of course, in addition to the above-mentioned structural forms, the battery pack mounting point of the present embodiment may also adopt other conventional mounting structures provided on each side member body.

Through the arrangement of the middle channel longitudinal beams 4 on the two sides, the structural strength and the longitudinal force transmission performance, namely the force transmission performance in the length direction of the vehicle body, of the middle channel 1 can be improved. In the specific implementation, for the center tunnel longitudinal beam 4 with the sectional structure on both sides, it is preferable that after the center tunnel longitudinal beam is connected with the center tunnel 1, a cavity arranged along the length direction of the center tunnel 1 is formed between the center tunnel longitudinal beam and the center tunnel longitudinal beam, so that the strength of the integral structure formed by the center tunnel 1 and the center tunnel longitudinal beam 4 can be improved by using the characteristics of the cavity structure.

In addition, in order to improve the structural strength of the center channel longitudinal beam 4 itself, according to specific design requirements, an appropriate reinforcing structure may be provided in each section of longitudinal beam sub-beam body in the center channel longitudinal beam 4, and the reinforcing structure may be a reinforcing plate or other conventional beam body reinforcing structures.

As shown in fig. 5, the specific structure of the front floor panel 2 of the present embodiment is a flat sheet metal member, and a plurality of reinforcing ribs 201 are respectively provided on the front floor panels 2 on both sides to improve the structural strength of the front floor panel 2. The shape and the size of each rib 201 may be designed based on the structural characteristics of the front floor panel 2 itself and the arrangement of the automobile parts at each position. In general, the ribs 201 at the respective positions may be integrally press-formed at the time of manufacturing the front floor panel 2.

Further, as a preferable embodiment, the present embodiment may be arranged such that the reinforcing beads 201 on the both side front floor panels 2 are symmetrically arranged with respect to the center tunnel 1. Therefore, the common arrangement of the reinforcing ribs 201 on the front floor panels 2 on the two sides can be utilized, and the design convenience is improved. However, it should be noted that, in addition to the arrangement of the reinforcing beads 201 on the both side front floor panels 2 symmetrically with respect to the center tunnel 1, it is of course possible to make the both side front floor panels 2 as a whole symmetrical with respect to the center tunnel 1, and this also can improve the convenience of the front floor structure design.

In this embodiment, as shown in fig. 1, front floor reinforcing beams 3 arranged in parallel with the center tunnel front section 101 are also connected to the front floor panels 2 on both sides, respectively. The front floor reinforcing beams 3 on the two sides are also in a beam body structure formed by stamping and molding a metal plate, and each front floor reinforcing beam 3 is specifically connected to the upper surface of the front floor panel 2 in a welding mode generally.

In one embodiment, the front ends of the two front floor reinforcement beams 3 may be arranged to protrude out of the front floor panel 2. By protruding the front end of each front floor reinforcement beam 3, when the front floor structure is placed in the entire vehicle body, the protruding portion of the front floor reinforcement beam 3 can be overlapped on the front wall of the vehicle body and connected to the front wall. By the design, the connection reliability of the front floor structure and the front structure of the vehicle body can be improved.

Referring again to fig. 1, the vehicle body front floor structure of the present embodiment further includes a front seat front mounting cross member 5 and a front seat rear mounting cross member 6 arranged at an interval in the vehicle body length direction. Front seat mounting points are provided on the front seat front mounting cross member 5 and the front seat rear mounting cross member 6, respectively, and the front seat mounting points may be, for example, similar to the above-described battery pack mounting points, and adopt a combined structure of mounting holes and mounting sleeves.

Further, the front seat front mounting cross member 5 of the present embodiment is also connected to the center tunnel front section 101 and the front floor panels 2 and the front floor reinforcement beams 3 on both sides, and the front seat rear mounting cross member 6 is connected to the center tunnel rear section 102 and the front floor panels 2 on both sides. As one embodiment, the connection position between the adjacent longitudinal beam sub-beam bodies and the front seat front mounting cross beam 5 or the front seat rear mounting cross beam 6 can be arranged vertically and correspondingly in the embodiment, so that the rigidity of the whole front floor structure can be ensured on the basis of the section of the middle channel longitudinal beam 4.

Through the transverse front seat front mounting beam 5 and the front seat rear mounting beam 6 which are arranged along the width direction of the vehicle body, and each seat mounting beam is connected with the middle channel 1 and the front floor panel 2, the stability of the seat mounting beam can be ensured, the integral structural strength of the front floor structure can be improved, and particularly the transverse force transmission effect of the front floor position can be improved.

In addition, in the present embodiment, as a possible implementation form, the front seat front mounting cross member 5 is provided across the middle tunnel front section 101, and the front seat rear mounting cross member 6 is also provided across the middle tunnel rear section 102. Also, as shown in fig. 6, in order to improve the reliability of the front seat front mounting cross member 5 and the front seat rear mounting cross member 6, the present embodiment may further provide a cross member reinforcing plate 7 in the front seat front mounting cross member 5 and the front seat rear mounting cross member 6.

For convenience of description, the above cross member reinforcing plate 7 provided in the front seat front mounting cross member 5 is specifically referred to as a front mounting cross member reinforcing plate 701, and the cross member reinforcing plate 7 provided in the front seat rear mounting cross member 6 is also specifically referred to as a rear mounting cross member reinforcing plate 702. The front mounting beam reinforcing plate 701 and the rear mounting beam reinforcing plate 702 adopt strip-shaped sheet metal structures the same as the corresponding seat mounting beams, and can adopt cross-sectional shapes similar to the corresponding seat mounting beams, and meanwhile, each beam reinforcing plate 7 is fixedly connected with the corresponding seat mounting beams through a welding mode.

To further improve the reliability of the front seat mounting, and with continued reference to fig. 7, the present embodiment may also be provided with a seat mounting reinforcement bracket 8 located at the front seat mounting point within the front seat front mounting cross member 5 and the front seat rear mounting cross member 6. The seat mounting reinforcing bracket 8 is specifically of a conventional box-shaped structure and is fixedly arranged in the seat mounting cross beam in a welding manner.

In the present embodiment, it is preferable that the above-described cross member reinforcing plate 7 and the seat attachment reinforcing bracket 8 are provided in the front seat front mounting cross member 5 and the front seat rear mounting cross member 6, respectively. However, depending on the specific design, for example, depending on the difference in material or structural shape of the front seat front mounting cross member 5 or the front seat rear mounting cross member 6, it is also possible to provide the cross member reinforcing plate 7 and the seat mounting reinforcing bracket 8 in only one of the two members, and the like.

With continued reference to fig. 1, the present embodiment is provided with rocker beam connecting portions 9 at both ends of the front-seat front-mounting cross member 5 and the front-seat rear-mounting cross member 6, respectively, for connection between each end of the front-seat front-mounting cross member 5 and the front-seat rear-mounting cross member 6 and a rocker beam 13 in the vehicle body. In this case, the rocker beam connection 9 can generally be formed as an outwardly turned flange at the end of the respective seat mounting cross member and can be connected to the rocker beam 13 by welding in the specific embodiment.

In addition, the rocker beam connecting portion 9 adopting the flange structure may be directly and integrally formed at the end of the front seat front mounting cross member 5 or the front seat rear mounting cross member 6. In addition to this arrangement, as shown in fig. 8, the present embodiment may be such that the front-seat front-mounting cross member 5 and the front-seat rear-mounting cross member 6 have connecting beams 10 connected to both ends thereof, respectively, and the rocker connecting portions 9 are formed at the ends of the connecting beams 10. And the connecting beam 10 is fixedly connected with the front seat front mounting beam 5 or the front seat rear mounting beam 6 through a welding mode.

It should also be noted that, in addition to providing the rocker connecting portions 9 at both ends of the front-seat front mounting cross member 5 and the front-seat rear mounting cross member 6, it is also possible, of course, to provide the rocker connecting portions 9 only at one end portion of either of the front-seat front mounting cross member 5 and the front-seat rear mounting cross member 6, depending on the specific design. Further, the rocker connecting portion 9 of the present embodiment can be configured to have other structures that can reliably connect the seat mounting cross member to the rocker 13, in addition to the outwardly turned flange structure.

The floor structure before the automobile body of this embodiment, the structural strength and the vertical power transmission performance of passageway 1 position in can promoting in the setting of well passageway longeron 4 to make well passageway longeron 4 constitute by the multistage longeron beam body that links to each other in proper order, and set up the battery package installation department respectively on each section longeron beam body, also can utilize well passageway longeron to be the characteristics of sectional type structure, through the combination of different longeron beam bodies, do benefit to the configuration of the installation point of different battery packages, thereby can satisfy the arrangement requirement of the battery package installation point of different forms.

Meanwhile, in the vehicle body front floor structure of the present embodiment, the front floor reinforcement beam 3 is connected to the front floor panel 2, so that it is possible to facilitate transmission of the collision force transmitted from the cabin side members 12 to the front floor panel 2 and the center tunnel 1 during an frontal collision or an offset collision of the vehicle, and to contribute to transmission and dispersion of the collision force at the front floor position, thereby improving the collision performance of the front floor.

Example two

The present embodiment also relates to a vehicle body front floor structure, as shown in fig. 9 to 11, and the structure of the vehicle body front floor structure of the present embodiment is substantially the same as that of the first embodiment, mainly, the center channel side member 4 divided at both sides in the present embodiment is composed of three side member sub-members connected in sequence, and the structure of the center channel side member 4 at this time is specifically shown in fig. 12.

Also for convenience of description, the three longitudinal beam split bodies may be a first longitudinal beam split body 401, a second longitudinal beam split body 402 and a third longitudinal beam split body 403 respectively. The three sections of longitudinal beam sub-beam bodies are all of stamping forming sheet metal beam body structures, and can be connected in a welding mode after being lapped together, so that the integral middle channel longitudinal beam 4 is formed.

In addition, as in the first embodiment, flanges are also formed at two side edges of the first longitudinal beam split body 401, the second longitudinal beam split body 402 and the third longitudinal beam split body 403, the flanges at each side are used for connecting with the center channel 1, and in specific implementation, each longitudinal beam split body and the center channel 1 are also fixedly connected together by welding.

For the battery pack mounting points arranged on the split beam bodies of the longitudinal beams, and for improving the strength of the integral structure formed by the middle channel longitudinal beam 1 and the middle channel longitudinal beam 4, a cavity and the like are formed between the middle channel longitudinal beam 4 and the middle channel 1, which can be referred to in the description of the first embodiment.

As another difference, as shown in fig. 9 in combination with fig. 13, the front seat front mounting cross member 5 in this embodiment is also two segments connected to two opposite sides of the front center tunnel segment 101, and at the same time, as shown in fig. 14, the front mounting cross member reinforcing plates 701 in the front seat front mounting cross member 5 are also two segments disposed on two sides of the front center tunnel segment 101, and each segment of the front mounting cross member reinforcing plates 701 is fixedly connected to the corresponding side of the front seat front mounting cross member 5.

As shown in fig. 10 and 11, a center tunnel cross member 11 is also connected between the center tunnel longitudinal members 4 on both sides in the present embodiment. The two ends of the middle channel cross beam 11 are overlapped on the middle channel longitudinal beam 4 and can be fixedly connected with the middle channel longitudinal beam 4 in a welding mode. A battery pack mounting point may be provided on the center tunnel cross member 11 to mount a battery pack, and the front seat front mounting cross member 5 according to the present embodiment is divided into two sections provided on both sides of the center tunnel front section 101, so as a preferred embodiment, the center tunnel cross member 11 may be provided between the front seat front mounting cross members 5 on both sides as shown in fig. 13, or at least a portion between the front seat front mounting cross members 5 on both sides may be provided with the center tunnel cross member 11.

By providing the center tunnel cross member 11 between the front seat front mounting cross members 5 on both sides, it is not only advantageous to ensure the rigidity of the center tunnel front section 101, but also to improve the lateral rigidity of the vehicle body front floor at the position of the front seat front mounting cross member 5 to facilitate the lateral transmission of the collision force at the front floor.

The other parts of the front floor structure of the vehicle body of the present embodiment can be obtained by referring to the description of the first embodiment. In addition, in the vehicle body front floor structure of the embodiment, the middle channel longitudinal beam 4 is composed of the multiple longitudinal beam sub-beam bodies which are sequentially connected, the battery pack installation parts are respectively arranged on the multiple longitudinal beam sub-beam bodies, the characteristic that the middle channel longitudinal beam is of a sectional structure can be utilized, the configuration of installation points of different battery packs is facilitated through the combination of the different longitudinal beam sub-beam bodies, the arrangement requirements of the battery pack installation points of different forms can be met, and the vehicle body front floor structure has good practicability.

EXAMPLE III

The present embodiment relates to a vehicle body in which a front floor structure of the vehicle body according to the first or second embodiment is provided, and as shown in fig. 14 and 15 in combination, the center tunnel side members 4 on both sides are connected to the rear ends of the side cabin side members 12 by side member connecting plates 14, respectively. Meanwhile, as a further preferred embodiment, the front floor panels 2 on both sides are also connected to the front floor connecting sections 121 at the tail ends of the nacelle stringers 12 on the corresponding sides, respectively, and at the same time, part of the front floor connecting sections 121 and the front floor reinforcement beams 3 are arranged to overlap each other up and down.

In this connection, and still referring to fig. 15, in a particular arrangement, one side of the stringer web 14 is connected to the rear end of the nacelle stringer 12, and a rearwardly extending connecting end 141 is formed on the other side of the stringer web 14, which connecting end 141 is connected to the front end of the centre channel stringer 4.

By connecting the cabin side member 12 and the center tunnel side member 4 by the side member connecting plate 14, a force transmission passage can be formed between the cabin side member 12 and the center tunnel side member 4, and the force transmission passage formed by the side member connecting plate 14 is inclined so as to transmit the collision force of the cabin side member 12 to the center tunnel side member 4 further inward than a force transmission passage formed in the longitudinal direction of the vehicle body between the cabin side member 12 and the front floor reinforcement member 3 described below.

In the present embodiment, the front floor reinforcement beam 3 on each side front floor panel 2 is arranged in line with the nacelle side member 12 on the corresponding side, the front floor attachment section 121 projects rearward from the rear end of the nacelle side member 12, and the front floor attachment section 121 is also located below the dash panel and is connected to the lower surface of the bottom portion of the dash panel. Specifically, the front floor attachment section 121 is attached to the lower surface of the front floor panel 2, and the front end portion of the front floor reinforcement beam 3 protruding outside the front floor panel 2 is attached to the upper surface of the dash panel bottom portion.

At this time, the above-mentioned partial front floor attachment section 121 is disposed in an up-down coincidence with the front floor reinforcement beam 3, that is, based on the collinear arrangement of the front floor reinforcement beam 3 and the corresponding side nacelle side member 12, the front floor reinforcement beam 3 located above the front floor panel 2 is in an up-down coincidence with the front floor attachment section 121 connected below the front floor panel 2 at the position of the front floor panel 2, and the front floor attachment section 121 located below the dash panel is in an up-down coincidence with the front floor reinforcement beam 3 connected above the dash panel at the position of the bottom of the dash panel.

Therefore, by means of the upper and lower superposition of the front floor connecting section 121 and the front floor reinforcing beam 3, the cabin longitudinal beam 12 and the front floor panel 2 can be better connected, and another force transmission channel is formed between the cabin longitudinal beam 12 and the front floor panel 2, so that the transmission of the collision force at the cabin longitudinal beam 12 to the front floor panel 2 is improved.

In the embodiment, through the arrangement of the force transmission channels between the cabin longitudinal beam 12 and the middle channel longitudinal beam 4 and between the cabin longitudinal beam 12 and the front floor panel 2, the combined action of the two force transmission channels can be utilized, so that the collision force at the cabin longitudinal beam 12 is better transmitted to the front floor structure, the decomposition of the collision force can be facilitated, the battery pack at the bottom of the front floor structure can be better protected, and the collision safety of the battery pack is improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A floor structure before automobile body which characterized in that:

including well passageway (1) that is located the automobile body middle part to and connect respectively the front floor panel (2) of well passageway (1) both sides, the bottom of well passageway (1) is connected with well passageway longeron (4) of arranging along automobile body length direction, well passageway longeron (4) are for setting up respectively two of well passageway (1) both sides edge, and both sides well passageway longeron (4) divide the roof beam body by consecutive multistage longeron to constitute, and at each section be equipped with a plurality of battery package installation departments on the longeron divides the roof beam body respectively.

2. The front floor structure of a vehicle body according to claim 1, characterized in that:

and a middle channel cross beam (11) is connected between the middle channel longitudinal beams (4) on the two sides.

3. The front floor structure of a vehicle body according to claim 1 or 2, characterized in that:

the front seat front mounting beam (5) and the front seat rear mounting beam (6) are arranged along the length direction of the vehicle body at intervals, and the front seat front mounting beam (5) and the front seat rear mounting beam (6) are connected with the middle channel (1) and the front floor panels (2) on two sides.

4. The front floor structure of a vehicle body according to claim 3, characterized in that:

and the connecting position between the adjacent longitudinal beam sub-beam bodies is vertically and correspondingly arranged with the front seat front mounting cross beam (5) or the front seat rear mounting cross beam (6).

5. The front floor structure of a vehicle body according to claim 3, characterized in that:

the front parts of the front floor panels (2) on the two sides are respectively connected with a front floor reinforcing beam (3) arranged side by side with the middle channel (1), and a front seat front mounting cross beam (5) is connected with the front floor reinforcing beam (3).

6. The front floor structure of a vehicle body according to claim 3, characterized in that:

the front seat front mounting beam (5) crosses the middle channel (1), or the front seat front mounting beam (5) is two sections which are respectively connected to two opposite sides of the middle channel (1).

7. The front floor structure of a vehicle body according to claim 6, characterized in that:

the front seat rear mounting cross beam (6) is arranged across the middle channel (1).

8. The front floor structure of a vehicle body according to claim 3, characterized in that:

a beam reinforcing plate (7) is arranged in the front seat front mounting beam (5) and/or the front seat rear mounting beam (6), and/or a seat mounting reinforcing bracket (8) located at the front seat mounting point position is arranged in at least one of the front seat front mounting beam (5) and the front seat rear mounting beam (6).

9. The front floor structure of a vehicle body according to claim 3, characterized in that:

install crossbeam (5) before the front seat and/or the both ends of installation crossbeam (6) are equipped with threshold roof beam connecting portion (9) respectively behind the front seat, perhaps, front seat front installation crossbeam (5) with the both ends of installing at least one of crossbeam (6) behind the front seat are connected with tie-beam (10) respectively, be equipped with threshold roof beam connecting portion (9) on tie-beam (10).

10. An automobile, characterized in that:

the automobile body is provided with a front floor structure of the automobile body according to any one of claims 1 to 9, the middle channel longitudinal beams (4) on two sides are respectively connected with the rear ends of the corresponding side cabin longitudinal beams (12) through longitudinal beam connecting plates (14), one sides of the longitudinal beam connecting plates (14) are connected with the rear ends of the cabin longitudinal beams (12), connecting ends (141) extending backwards are formed on the other sides of the longitudinal beam connecting plates (14), and the connecting ends (141) are connected with the middle channel longitudinal beams (4).

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