CN217835778U

CN217835778U - Vehicle body structure and automobile

Info

Publication number: CN217835778U
Application number: CN202222010421.5U
Authority: CN
Inventors: 刘世根; 刘华; 李成诚
Original assignee: Zhangjiagang Great Wall Motor Research and Development Co Ltd
Current assignee: Zhangjiagang Great Wall Motor Research and Development Co Ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-11-18
Anticipated expiration: 2032-08-01

Abstract

The utility model provides a vehicle body structure and an automobile, the vehicle body structure of the utility model comprises a lower vehicle body and a battery pack frame connected with the bottom of the lower vehicle body, and a battery module installation space is formed in the battery pack frame; the lower automobile body is provided with two front cabin longitudinal beams which are respectively arranged on the left side and the right side and two threshold beams which are respectively arranged on the left side and the right side, a front wall lower cross beam is connected between the front ends of the threshold beams on the two sides, the rear ends of the two front cabin longitudinal beams and the front end of the battery pack frame are connected to the front wall lower cross beam. The utility model discloses an automobile body structure is through setting up the battery package frame of automobile body bottom under to make the front end of battery package frame connect before enclose the bottom end rail on, can realize that the impact along preceding cabin longeron to automobile body threshold roof beam, before enclose bottom end rail and battery package frame and decompose, thereby form a plurality of routes and decompose the impact, and then be favorable to protecting cabin passenger district complete, reduce the passenger injury.

Description

Vehicle body structure and automobile

Technical Field

The utility model relates to a vehicle parts technical field, in particular to body structure. The utility model discloses it has this body structure's car still to relate to an application.

Background

With the rapid development of electric vehicles, in order to increase the cruising distance, the electric vehicles need to be equipped with more battery packs, so that compared with fuel vehicles of the same specification, the electric vehicles greatly increase the weight of the whole vehicle, which leads to the increase of the kinetic energy of the whole vehicle at the initial stage of collision of the vehicle under the same test conditions, that is, the vehicle body structure of the electric vehicles needs to bear larger force and absorb more motion energy to improve the safety.

In the existing automobile body structure of the electric automobile, because the structural design is unreasonable, the following problems still exist: firstly, the battery pack cannot effectively bear the force transmission of the longitudinal beam of the direct collision cabin; secondly, the structural design of the vehicle body is complicated, for example, the structural design of the arranged torsion box structure or the front floor longitudinal beam or the threshold beam reinforcing beam is unreasonable, the arrangement space of the battery pack is influenced to a certain extent, and the endurance mileage is low.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a body construction to can realize that the biography of automobile body and battery package is fused, and do benefit to and form a plurality of biography power routes.

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

a vehicle body structure comprises a lower vehicle body and a battery pack frame connected to the bottom of the lower vehicle body, wherein a battery module mounting space is formed in the battery pack frame;

the lower vehicle body is provided with two front cabin longitudinal beams which are respectively arranged on the left side and the right side and two threshold beams which are respectively arranged on the left side and the right side, a front wall lower cross beam is connected between the front ends of the threshold beams on the two sides, the rear ends of the two front cabin longitudinal beams and the front end of the battery pack frame are connected to the front wall lower cross beam.

Furthermore, the battery pack frame is provided with battery pack boundary beams which are respectively arranged at the left side and the right side, a battery pack front cross beam which is connected between the front ends of the battery pack boundary beams at the two sides, and a battery pack rear cross beam which is connected between the rear ends of the battery pack boundary beams at the two sides; the battery pack front cross beam is connected with the front wall lower cross beam, and each battery pack edge beam is connected to the threshold beam on the corresponding side.

Furthermore, the battery pack frame is also provided with a battery pack middle longitudinal beam positioned between the battery pack edge beams on the two sides, the front end of the battery pack middle longitudinal beam is connected with the battery pack front cross beam, and the rear end of the battery pack middle longitudinal beam is connected with the battery pack rear cross beam; and/or the battery pack frame is also provided with a battery pack middle cross beam between the battery pack front cross beam and the battery pack rear cross beam, and the battery pack middle cross beam is connected between the battery pack edge beams on two sides.

Further, the lower vehicle body is also provided with two vehicle body A columns which are respectively arranged at the left side and the right side, and a front wall middle cross beam connected between the vehicle body A columns at the two sides; the front wall middle cross beam is positioned above the front wall lower cross beam, the front wall lower cross beam is connected with the lower parts of the rear ends of the front cabin longitudinal beams on the two sides, and the front wall middle cross beam is connected with the upper parts of the rear ends of the front cabin longitudinal beams on the two sides.

Further, a notch is formed in the upper portion of the rear end of each of the front cabin longitudinal beams on the two sides, and the front wall middle cross beam is embedded into the notch.

Furthermore, the lower vehicle body is also provided with a vehicle body middle channel, the vehicle body middle channel is positioned above the battery pack frame, and the front end of the vehicle body middle channel is connected with the front wall middle cross beam.

Furthermore, the lower vehicle body is also provided with a front seat cross beam connected between the threshold beams on two sides and a vehicle body sleigh plate of which the rear end is connected with the front seat cross beam, and the front end of the vehicle body sleigh plate is connected with the front wall middle cross beam through a front wall plate.

Furthermore, the number of the vehicle body sleigh plates is two, the two vehicle body sleigh plates are arranged side by side, the two vehicle body sleigh plates and the two front cabin longitudinal beams are arranged in a one-to-one correspondence mode, and the front cabin longitudinal beams and the vehicle body sleigh plates which are arranged in the correspondence mode are arranged on the same axis along the length direction of the vehicle body.

Furthermore, two ends of the front wall lower cross beam are obliquely arranged towards the rear part of the vehicle body, and/or two ends of the front wall middle cross beam are obliquely arranged towards the rear part of the vehicle body.

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

automobile body structure, through setting up the battery package frame of automobile body bottom under to make the front end of battery package frame connect before enclose on the bottom end rail, from this, can make the impact along preceding cabin longeron to automobile body threshold roof beam, before enclose bottom end rail and battery package frame and decompose, thereby form a plurality of routes and decompose the impact, and then can protect cabin passenger district complete, reduce the passenger injury.

In addition, the battery pack frame is provided with a battery pack middle longitudinal beam, a battery pack front cross beam and a battery pack rear cross beam, so that the transmission of the collision force transmitted to the front wall lower cross beam to the battery pack front cross beam and the battery pack middle longitudinal beam is facilitated, and a force transmission channel can be increased.

In addition, the front wall middle cross beam is embedded into a notch at the rear end of the front cabin longitudinal beam, so that the transmission of collision force to the front wall lower cross beam is facilitated, the rear end of the front cabin longitudinal beam is prevented from being lifted upwards, and the collision safety is improved.

Another object of the present invention is to provide a vehicle, which has the above-mentioned body structure.

The utility model discloses an automobile, through adopting as above automobile body structure, have the same beneficial effect for prior art, no longer describe herein.

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 vehicle body structure according to a first embodiment of the present invention;

fig. 2 is a partially enlarged view of a vehicle body structure according to a first embodiment of the present invention;

fig. 3 is a schematic structural view of another view angle of the vehicle body structure according to the first embodiment of the present invention;

fig. 4 is a plan view of a vehicle body structure according to a first embodiment of the present invention;

FIG. 5 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 4;

fig. 6 is a schematic structural diagram of a battery pack frame according to a first embodiment of the present invention;

description of the reference numerals:

1. a lower vehicle body; 101. a front nacelle stringer; 102. a threshold beam; 103. a front wall lower beam; 104. a vehicle body A column; 105. a front wall middle cross beam; 106. a channel in the vehicle body; 107. a seat front cross member; 108. a body ski; 109. a dash panel;

2. a battery pack frame; 200. a battery module installation space; 201. a battery edge covering beam; 202. a battery pack front cross beam; 203. a battery pack rear cross beam; 204. a battery pack middle longitudinal beam; 205. a middle cross beam of the battery pack; 10. a connecting member; 20. and connecting the holes.

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 directions or positional relationships such as "up", "down", "inside", "outside", etc. appear, they are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, 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.

In addition, the terms of orientation used in the present embodiment, such as "up, down, left, right, front, and rear" are defined with reference to the up-down direction, the left-right direction, and the front-rear direction of the vehicle. Specifically, as shown in fig. 1 and 2, the X direction is the front-rear direction of the vehicle, wherein the side to which the arrow points is "front" and vice versa is "rear". The Y direction is the left-right direction of the vehicle, wherein the side to which the arrow points is "left", and vice versa "right". The Z direction is the up-down direction of the vehicle, wherein the side to which the arrow points is "up" and vice versa is "down". "inside and outside" are defined with reference to the outline of the corresponding member, for example, inside and outside of a vehicle defined with reference to the outline of the vehicle, and the side near the middle of the vehicle is "inside" and vice versa.

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

Example one

The embodiment relates to a vehicle body structure, which is characterized in that a battery pack frame 2 is arranged at the bottom of a lower vehicle body 1, the front end of the battery pack frame 2 is connected to a front surrounding lower cross beam 103, collision force can be transmitted and decomposed to a threshold beam 102, the front surrounding lower cross beam 103 and the battery pack frame 2 along a front cabin longitudinal beam 101, a plurality of force transmission paths are formed, the integrity of a cabin passenger area can be protected, and the injury of passengers is reduced.

In the overall structure, the vehicle body structure of the present embodiment, as shown in fig. 1 to 3, mainly includes a lower vehicle body 1, and a battery pack frame 2 attached to the bottom of the lower vehicle body 1.

As shown in fig. 1 to 3 in conjunction with fig. 4 and 5, the lower body 1 of the present embodiment has two front cabin side members 101 provided on the left and right sides, and two rocker members 102 provided on the left and right sides, respectively. A cowl cross member 103 is connected between the front ends of the rocker beams 102 on both sides, and the rear ends of the two front nacelle side members 101 and the front end of the battery pack frame 2 are connected to the cowl cross member 103.

In addition, in terms of specific structure, the lower body 1 of the present embodiment further has two body a pillars 104 provided on the left and right sides, and a cowl center cross member 105 connected between the body a pillars 104 on the left and right sides. The front wall middle cross beam 105 is located above the front wall lower cross beam 103, the front wall lower cross beam 103 is connected with the lower portions of the rear ends of the front cabin longitudinal beams 101 on the two sides, and the front wall middle cross beam 105 is connected with the upper portions of the rear ends of the front cabin longitudinal beams 101 on the two sides.

As a preferred embodiment, the front side members 101 of the present embodiment are formed with recesses in the upper portions of the rear ends thereof, into which the cowl center cross member 105 is fitted. The structure is beneficial to the transmission of the collision force borne by the front cabin longitudinal beam 101 to the front surrounding lower cross beam 103 through the front surrounding middle cross beam 105, so that the rear section of the front cabin longitudinal beam 101 is prevented from being lifted upwards, and the collision safety is improved.

Also as a preferred embodiment, both ends of the cowl cross member 105 are arranged obliquely toward the rear of the vehicle body, that is, as shown in fig. 3 and 4, the cowl cross member 105 has a straight section extending in the vehicle width direction, and an oblique section connecting both ends of the straight section and extending toward the rear of the vehicle body. In this way, it is possible to facilitate the transmission of the collision force to both sides.

Further, as a preferred embodiment, both ends of the cowl cross member 103 of the present embodiment are disposed obliquely toward the rear of the vehicle body, whereby the transmission of the collision force to the rocker beams 102 on both sides and the center battery rocker 201 described below can be guided.

In addition, the lower body 1 of the present embodiment structurally further has a vehicle body center channel 106, the vehicle body center channel 106 is specifically located above the battery pack frame 2, and a front end of the vehicle body center channel 106 is connected to the cowl center cross member 105. This also facilitates transmission of the collision force received by the cowl center cross 105 to the vehicle body rear side along the center tunnel.

As shown in fig. 1 and 2, the lower body 1 of the present embodiment further has a front seat cross member 107 connected between the rocker beams 102 on both sides, and a body ski 108. The front end of the vehicle body sled 108 is connected to the cowl center cross member 105 through a cowl 109, and the rear end of the vehicle body sled 108 is connected to the seat front cross member 107.

And in a preferred embodiment, the body skis 108 are two side-by-side. The two body skis 108 and the two front cabin longitudinal beams 101 are arranged in one-to-one correspondence, and the front cabin longitudinal beams 101 and the body skis 108 which are arranged in correspondence are on the same axis along the length direction of the body. This also facilitates the transmission of the collision force along the front-cabin side members 101 to the body skis 108.

As an exemplary structure of the battery pack frame 2 of the present embodiment, as shown in fig. 6, the battery pack frame 2 has a specific structure including battery pack side members 201 disposed on the left and right sides, a battery pack front cross member 202 connected between the front ends of the battery pack side members 201 on the left and right sides, and a battery pack rear cross member 203 connected between the rear ends of the battery pack side members 201 on the left and right sides. And a battery module mounting space 200 is formed by the battery pack edge beams 201, the battery pack front cross beam 202 and the battery pack rear cross beam 203 on both sides together for mounting the battery module.

In the present embodiment, the front bag cross member 202 is connected to the cowl cross member 103, and each of the battery bag side members 201 is connected to the rocker member 102 on the corresponding side. The design of this structure can provide bigger installation space for the battery package, and can promote the continuation of the journey mileage.

In order to ensure the connection effect between the battery pack frame 2 and the lower vehicle body 1, the battery pack front cross beam 202 and the front wall lower cross beam 103, and the battery pack edge beam 201 and the threshold beam 102 on the corresponding side can be connected together by welding or screwing. In the present embodiment, it is preferable that the battery pack frame 2 is screwed to the bottom of the lower vehicle body 1.

Specifically, the battery pack front cross beam 202 and the front wall lower cross beam 103, and the battery pack edge beam 201 and the corresponding threshold beam 102 are respectively provided with the connecting holes 20 correspondingly. The battery pack frame 2 is connected to the bottom of the lower body 1 by screwing the front cross member 202 and the front lower surrounding cross member 103 together and screwing the battery pack edge beam 201 and the corresponding rocker beam 102 together through the connecting members 10 inserted into the respective connecting holes 20.

In addition, the battery pack frame 2 of the present embodiment further includes a battery pack center longitudinal beam 204 located between the battery pack side beams 201 on both sides, the front end of the battery pack center longitudinal beam 204 is connected to the battery pack front cross beam 202, and the rear end of the battery pack center longitudinal beam 204 is connected to the battery pack rear cross beam 203, so that the collision force transmitted to the battery pack front cross beam 202 can be transmitted rearward along the battery pack center longitudinal beam 204.

In addition, the battery pack frame 2 of the present embodiment further has a battery pack middle cross beam 205 located between the battery pack front cross beam 202 and the battery pack rear cross beam 203, and the battery pack middle cross beam 205 is connected between the battery pack side beams 201 on both sides. Among them, the cell package middle cross member 205 is preferably a plurality of members arranged at intervals. So, can separate a plurality of module installation spaces to also can promote the structural strength of battery package frame 2, increase and pass power passageway.

In the force transmission path of the vehicle body structure of the present embodiment, as shown in fig. 4, the front cabin side member 101 mainly receives an external collision force, and the collision force is transmitted to the cowl middle cross member 105 and the cowl bottom cross member 103 along the front cabin side member 101. The force received by the front wall middle cross beam 105 is transmitted to the rear of the vehicle body to the threshold beam 102 and the battery pack edge beam 201 on the two sides respectively, the force received by the front wall lower cross beam 103 is transmitted to the battery pack front cross beam 202 and is transmitted to the battery pack edge beam 201 by the battery pack front cross beam 202, and therefore a multi-path force transmission channel is formed, and the collision force can be better resolved.

The vehicle body structure of this embodiment can realize the multipath and pass the power passageway, and decomposition collision force that can be better, and can protect cabin passenger district complete, reduce the passenger injury, have fine result of use simultaneously.

Example two

The present embodiment relates to an automobile in which the vehicle body structure according to the first embodiment is provided.

The automobile of the embodiment can improve the collision performance of the automobile and improve the use safety by adopting the automobile body structure of the first embodiment.

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

1. A vehicle body structure characterized in that:

the vehicle-mounted battery pack comprises a lower vehicle body (1) and a battery pack frame (2) connected to the bottom of the lower vehicle body (1), wherein a battery module mounting space (200) is formed in the battery pack frame (2);

the lower vehicle body (1) is provided with two front cabin longitudinal beams (101) which are respectively arranged on the left side and the right side and two threshold beams (102) which are respectively arranged on the left side and the right side, a front wall lower cross beam (103) is connected between the front ends of the threshold beams (102) on the two sides, the rear ends of the two front cabin longitudinal beams (101) and the front end of the battery pack frame (2) are connected to the front wall lower cross beam (103).

2. The vehicle body structure according to claim 1, characterized in that:

the battery pack frame (2) is provided with battery pack boundary beams (201) which are respectively arranged on the left side and the right side, a battery pack front cross beam (202) which is connected between the front ends of the battery pack boundary beams (201) on the two sides, and a battery pack rear cross beam (203) which is connected between the rear ends of the battery pack boundary beams (201) on the two sides;

the front cross beam (202) of the battery pack is connected with the front wall lower cross beam (103), and each battery pack edge beam (201) is connected to the threshold beam (102) on the corresponding side.

3. The vehicle body structure according to claim 2, characterized in that:

the battery pack frame (2) is also provided with a battery pack middle longitudinal beam (204) positioned between the battery pack edge beams (201) on two sides, the front end of the battery pack middle longitudinal beam (204) is connected with the battery pack front cross beam (202), and the rear end of the battery pack middle longitudinal beam (204) is connected with the battery pack rear cross beam (203); and/or the presence of a gas in the atmosphere,

the battery pack frame (2) is also provided with a battery pack middle cross beam (205) which is positioned between the battery pack front cross beam (202) and the battery pack rear cross beam (203), and the battery pack middle cross beam (205) is connected between the battery pack edge beams (201) at two sides.

4. The vehicle body structure according to claim 1, characterized in that:

the lower vehicle body (1) is also provided with two vehicle body A columns (104) which are respectively arranged at the left side and the right side, and a front wall middle cross beam (105) which is connected between the vehicle body A columns (104) at the two sides;

the front wall middle cross beam (105) is located above the front wall lower cross beam (103), the front wall lower cross beam (103) is connected with the lower portions of the rear ends of the front cabin longitudinal beams (101) on the two sides, and the front wall middle cross beam (105) is connected with the upper portions of the rear ends of the front cabin longitudinal beams (101) on the two sides.

5. The vehicle body structure according to claim 4, characterized in that:

the upper parts of the rear ends of the front cabin longitudinal beams (101) on two sides are provided with notches, and the front wall middle cross beam (105) is embedded in the notches.

6. The vehicle body structure according to claim 4, characterized in that:

the lower vehicle body (1) is also provided with a vehicle body middle channel (106), the vehicle body middle channel (106) is positioned above the battery pack frame (2), and the front end of the vehicle body middle channel (106) is connected with the front wall middle cross beam (105).

7. The vehicle body structure according to claim 4, characterized in that:

the lower car body (1) is also provided with a seat front cross beam (107) connected between the threshold beams (102) on two sides and a car body sleigh (108) of which the rear end is connected with the seat front cross beam (107), and the front end of the car body sleigh (108) is connected with the front wall middle cross beam (105) through a front wall plate (109).

8. The vehicle body structure according to claim 7, characterized in that:

the number of the vehicle body sleigh plates (108) is two, the two vehicle body sleigh plates (108) and the two front cabin longitudinal beams (101) are arranged in a one-to-one correspondence mode, and the front cabin longitudinal beams (101) and the vehicle body sleigh plates (108) which are arranged in the correspondence mode are arranged on the same axis in the length direction of the vehicle body.

9. The vehicle body structure according to any one of claims 4 to 8, characterized in that:

and two ends of the front wall lower cross beam (103) are obliquely arranged towards the rear part of the vehicle body, and/or two ends of the front wall middle cross beam (105) are obliquely arranged towards the rear part of the vehicle body.

10. An automobile, characterized in that:

the automobile has the vehicle body structure of any one of claims 1 to 9.