CN217649526U

CN217649526U - Battery package structure and car

Info

Publication number: CN217649526U
Application number: CN202221691212.5U
Authority: CN
Inventors: 陈强; 贺志杰; 张书任; 张涛; 武文波; 陈曦; 任万里
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-25
Anticipated expiration: 2032-06-30

Abstract

The utility model provides a battery package structure and an automobile, the utility model discloses an automobile comprises a battery package shell integrated with an automobile body, wherein the battery package shell is provided with threshold beams respectively arranged at the left side and the right side, a front frame connected between the front ends of the threshold beams at both sides, and a rear frame connected between the rear ends of the threshold beams at both sides; the battery pack shell is also provided with a front reinforcing cross beam and a rear reinforcing cross beam which are connected between the threshold beams on the two sides, the front reinforcing cross beam is arranged close to the front frame, and the rear reinforcing cross beam is arranged close to the rear frame; and a module mounting space is defined between the front reinforcing beam and the rear reinforcing beam, and a buffer space is formed between the front reinforcing beam and the front frame and/or between the rear reinforcing beam and the rear frame. The utility model discloses a battery package structure can fully release the collision force, and can improve the collision security of battery package.

Description

Battery package structure and car

Technical Field

The utility model relates to an automobile body technical field, in particular to battery package structure as an organic whole with automobile body is integrated. The utility model discloses still relate to the car that is equipped with above-mentioned battery package structure.

Background

With the continuous development of automobile technology, electric automobiles are gaining favor of more and more consumers due to excellent acceleration performance and abundant electronic configuration. In addition to acceleration performance and electronic configuration, the cruising ability of an electric vehicle is a major concern. In order to improve cruising ability and reduce the weight of the whole vehicle, the battery pack and the vehicle body are integrated into a whole based on the important option, and the battery pack becomes a key concern of research personnel of various vehicles and enterprises.

Through with the battery package integration in the automobile body, not only can reduce battery package body part, greatly reduced car weight to some parts in the battery package are direct as a part in the automobile body structure, also are favorable to the promotion of automobile body overall rigidity. However, in the conventional battery pack structure designed integrally with the vehicle body, the collision force transmission/dispersion effect is still insufficient, and sufficient release of the collision force cannot be achieved, which affects the collision safety of the battery pack.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a battery pack structure to improve the collision safety of the battery pack.

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

a battery pack structure comprises a battery pack shell integrated with a vehicle body, wherein the battery pack shell is provided with threshold beams which are respectively arranged on the left side and the right side, a front frame connected between the front ends of the threshold beams on the two sides, and a rear frame connected between the rear ends of the threshold beams on the two sides;

the battery pack shell is also provided with a front reinforcing cross beam and a rear reinforcing cross beam which are connected between the threshold beams on the two sides, the front reinforcing cross beam is arranged close to the front frame, and the rear reinforcing cross beam is arranged close to the rear frame; and a module mounting space is defined between the front reinforcing beam and the rear reinforcing beam, and a buffer space is formed between the front reinforcing beam and the front frame and/or between the rear reinforcing beam and the rear frame.

Further, the buffer space is filled with a flexible material.

Furthermore, the front frame and/or the rear frame are provided with a middle frame body and side frame bodies connected to two ends of the middle frame body, the side frame bodies at two ends are connected with the threshold beam, and the side frame bodies at two ends are obliquely arranged, so that the middle frame body is arched out of the battery pack shell.

Furthermore, the battery pack shell is also provided with a middle channel positioned between the threshold beams on two sides, the front end of the middle channel is connected with the front frame, and the rear end of the middle channel is connected with the rear frame.

Furthermore, a front row seat mounting cross beam and a side longitudinal beam connected between the front frame and the front row seat mounting cross beam are connected in the battery pack shell, and one side longitudinal beam is arranged between the threshold beam and the middle channel on two sides.

Furthermore, front seat installs the crossbeam and is separated into two branch crossbeams by the center passage, and the top of branch crossbeam with the center passage and/or the top parallel and level setting of threshold roof beam.

Furthermore, the bottom of the middle channel is connected with a reinforcing longitudinal beam, the front end of the reinforcing longitudinal beam is connected with the front reinforcing cross beam, and the rear end of the reinforcing longitudinal beam is connected with the rear reinforcing cross beam.

Furthermore, both sides be connected with the rear cross beam between the threshold roof beam, the rear cross beam is close to the back frame sets up, just the rear cross beam with be equipped with between the back frame and put the thing box.

Furthermore, the threshold beam, the front frame, the rear frame, the front reinforcing cross beam and the rear reinforcing cross beam are made of extruded aluminum profiles.

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

battery package structure, through strengthening cross member and back strengthening cross member before setting up to and between strengthening cross member and the front frame in the front, or be formed with the buffering space between strengthening cross member and the back frame in the back, bump when bumping after or, utilize the buffering space can make front frame or back frame fully deformed, with the impact of release transmission to front frame or back frame, thereby can improve the collision security of battery package.

In addition, the battery pack shell is integrated threshold roof beam, well passageway and front seat installation crossbeam and lateral part longeron, not only helps promoting the integrated effect of battery pack and automobile body, helps increasing the structural strength of automobile body middle part position, simultaneously, also can form the biography power network in the battery pack shell, and then is favorable to the transmission dispersion of collision force in the battery pack shell. And make the top of front seat installation crossbeam and well passageway and threshold roof beam's top parallel and level, then can increase the continuity of collision power transmission, be favorable to the transmission of collision power between threshold roof beam, well passageway and front seat installation crossbeam.

In addition, extruded aluminum profiles are adopted for the doorsill beam, the front frame, the rear frame, the front reinforcing cross beam, the rear reinforcing cross beam and the like, and the characteristics of the extruded aluminum profiles are utilized, so that the manufacturing of the beam body structures is facilitated, the integral structural strength of the battery pack shell body is improved, and the crumple energy absorption performance during collision can be improved.

Another object of the present invention is to provide a vehicle, wherein the battery pack structure is disposed in the vehicle.

The car set up foretell battery package structure, can fully release the impact, improve the collision security of battery package, and there is fine practicality.

Drawings

The accompanying drawings, which form a part of the present disclosure, are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and together with the description serve to explain the present disclosure. In the drawings:

fig. 1 is a schematic structural diagram of a battery pack case according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a battery pack case according to an embodiment of the present invention (when a cover is removed);

fig. 3 is a schematic structural view of a battery pack case according to an embodiment of the present invention (when the storage box is removed);

fig. 4 is a schematic structural view (back side) of a battery pack case according to an embodiment of the present invention;

description of the reference numerals:

1. a battery pack housing;

101. a threshold beam; 102. a front frame; 103. a middle channel; 104. a beam is arranged on the front row seat; 1041. dividing a beam; 105. a side rail; 106. a rear frame; 107. a front reinforcing cross member; 108. reinforcing the longitudinal beam; 109. a front buffer space; 1010. a rear reinforcing cross beam; 1011. a rear buffer space; 1012. a vehicle body floor; 1013. A rear cross member; 1014. a storage box; 1015. a cover body;

a. a middle frame body; b. a side frame body.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

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 order, but are to be construed as referring to the same order.

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.

The embodiment relates to a battery pack structure, which comprises a battery pack shell 1 integrated with a vehicle body, and can fully release collision force when a vehicle collides, particularly in a head-on collision or a rear collision, so that the collision safety of the battery pack can be improved.

In the overall structure, the battery pack case 1 of the present embodiment has the rocker beams 101 disposed on the left and right sides, the front frame 102 connected between the front ends of the rocker beams 101 on the two sides, and the rear frame 106 connected between the rear ends of the rocker beams 101 on the two sides. Meanwhile, the battery pack case 1 further has a front reinforcing cross member 107 and a rear reinforcing cross member 1010 connected between the rocker beams 101 on both sides, the front reinforcing cross member 107 being disposed near the front bezel 102, and the rear reinforcing cross member 1010 being disposed near the rear bezel 106.

Wherein a module mounting space is defined between the front and rear reinforcing

cross members

107 and 1010 to mount the battery modules, and a buffer space is formed between the front reinforcing cross member 107 and the front frame 102 or between the rear reinforcing cross member 1010 and the rear frame 106.

Specifically, an exemplary structure of the battery pack case 1 of the present embodiment is shown in fig. 1 to 4, and in this exemplary structure, as a preferred embodiment, a buffer space, that is, a front buffer space 109 and a rear buffer space 1011, is formed between the front reinforcing beam 107 and the front frame 102, and between the rear reinforcing beam 1010 and the rear frame 106. The two buffer spaces are not used for placing the battery modules during implementation, so that a buffer area can be formed at the end of the battery pack case 1. Thus, when the automobile is collided, the collision force applied to the front and rear end frames can be fully released by the buffer space, so that the collision safety is improved.

Of course, it is also possible to form only the front cushion space 109 between the front reinforcing cross member 107 and the front frame 102, or only the rear cushion space 1011 between the rear reinforcing cross member 1010 and the rear frame 106, depending on the specific design requirements of the battery pack case. Furthermore, in the present embodiment, it is preferable that the buffer space is filled with a flexible material, which may be a sponge, a foam or other suitable materials. Through filling flexible material, it can play the energy-absorbing effect, also can protect the module when the collision simultaneously, avoids the shell structure fracture to stab the module and leads to catching a fire.

As a preferred embodiment, as illustrated in fig. 4, the front frame 102 and the rear frame 106 of the present embodiment each have a middle frame a and side frames b connected to both ends of the middle frame a. The side frames b at both ends are connected to the rocker beam 101, and the side frames b at both ends are also arranged obliquely with respect to the middle frame a so that the middle frame a is arched outward of the battery pack case 1. By the design, the buffer space formed at the end of the battery pack case 1 is made to be approximately trapezoidal, and the impact force generated by the front collision or the rear collision can be applied to the doorsill beams 101 at the two sides, so that the influence on the module in the battery pack is reduced. Of course, it is also possible to employ the above structure in addition to both the front bezel 102 and the rear bezel 106, so that only one of them employs the above structure.

In addition, the battery pack case 1 of the present embodiment also has a center tunnel 103 between the side sill beams 101, and the center tunnel 103 is connected at its front end to the front frame 102 and at its rear end to the rear frame 106. Furthermore, also as a preferred embodiment, the present embodiment is characterized in that a front seat mounting cross member 104 is further connected to the inside of the battery pack case 1, the front seat mounting cross member 104 is used for mounting a front seat in the vehicle, and a side longitudinal member 105 is further connected between the front cross member 102 and the front seat mounting cross member 104 in addition to the front seat mounting cross member 104.

In this embodiment, the arrangement of the side longitudinal beams 105 not only can improve the structural strength of the front portion of the battery pack case 1, but also can increase a longitudinal force transmission channel in the front portion of the battery pack case 1 through the side longitudinal beams 105. In this way, the collision force transmitted along the side members 105 is transmitted to the rocker beams 101 on both sides via the front seat mounting cross member 104, because the rear ends of the side members 105 are connected to the front seat mounting cross member 104.

In addition, make integrated beam body structures such as threshold roof beam 101, well passageway 103 and front seat installation crossbeam 104 and side longeron 105 in the battery package casing 1, this embodiment not only helps promoting the integrated effect of battery package and automobile body, also helps increasing the structural strength of automobile body middle part position, and simultaneously, it can also form the biography power network in battery package casing 1, and then is favorable to the transmission dispersion of collision force in battery package casing 1.

In this embodiment, one side sill 105 is provided between each of the side sill members 101 and the center tunnel 103. Meanwhile, as a preferred embodiment, the front seat mounting cross member 104 is also divided into two sub cross members 1041 by the center tunnel 103, each sub cross member 1041 is connected between the center tunnel 103 and the rocker beam 101 on one side, and the top of the sub cross member 1041 is also disposed flush with the center tunnel 103 and the top of the rocker beam 101.

At this time, the sub-beams 1041, that is, the front seat installation beam 104, are flush with the tops of the center tunnel 103 and the threshold beam 101, so that the continuity of force transmission between the center tunnel 103 and the front seat installation beam 104, and between the threshold beam 101 and the front seat installation beam 104 can be ensured, which is favorable for the transmission and dispersion of the collision force. Of course, it is possible to have only the front seat mounting cross member 104 be disposed flush with the top of the center tunnel 103 or only the front seat mounting cross member 104 be disposed flush with the top of the rocker beam 101, depending on the particular design requirements.

In the present embodiment, as a preferred embodiment, the front reinforcing cross member 107 and the rear reinforcing cross member 1010 are provided, and the reinforcing side members 108 are connected to the bottom of the center tunnel 103. The front end of the reinforcing longitudinal member 108 is connected to the front reinforcing cross member 107, and the rear end of the reinforcing longitudinal member 108 is connected to the rear reinforcing cross member 1010. Meanwhile, the top of the reinforcing longitudinal beam 108 can be connected with the central channel 103 by welding, however, in the specific implementation, the central channel 103 and the reinforcing longitudinal beam 108 can be integrally formed, so as to improve the manufacturing efficiency.

The reinforcing longitudinal beams 108 can be arranged to be matched with the front reinforcing cross beam 107 and the rear reinforcing cross beam 1010, so that the structural strength of the battery pack case 1 is further improved. As also shown in fig. 1 and 2, the present embodiment further includes a rear cross member 1013 connected between the rocker beams 101, the rear cross member 1013 being disposed adjacent to the rear frame 106, and a storage box 1014 being disposed between the rear cross member 1013 and the rear frame 106.

In particular, the storage compartment 1014 may be used to house electrical controls within the battery pack, or may be used to house other components within the battery pack. In this embodiment, a lid 1015 may be provided on the storage box 1014 to close the storage box 1014 by the lid 1015 in order to protect the components placed in the storage box 1014.

In this embodiment, a vehicle body floor 1012 is also connected between the rocker beams 101 on both sides, and the vehicle body floor 1012 not only serves as a floor structure of a passenger compartment, but also serves as an upper cover in a battery pack to enclose and protect the battery module. Further, it should be noted that the center tunnel 103, the front floor mounting cross member 104, the side members 105, the rear cross member 1013, and the like may be provided on an upper end surface of the vehicle body floor 1012 and welded to the vehicle body floor 1012. Therefore, the components can be integrated into a whole, and the structural strength of the battery pack shell 1 can be improved.

In particular, the rocker beam 101, the front frame 102, the rear frame 106, the front cross reinforcement 107, the rear cross reinforcement 1010, etc. of the present embodiment are preferably made of extruded aluminum profiles. By adopting the extruded aluminum profile, the manufacturing of each beam structure is facilitated by utilizing the characteristics of the extruded aluminum profile, and meanwhile, the overall structural strength of the battery can shell and the crumpling energy absorption performance during collision can be improved. Furthermore, in addition to the above beam body structure, extruded aluminum profiles such as the reinforcing side members 108, the rear cross member 1013, and the like may of course be employed.

In the battery pack structure of the present embodiment, by providing the front reinforcing cross member 107 and the rear reinforcing cross member 1010, and forming a buffer space between the front reinforcing cross member 107 and the front frame 102 and between the rear reinforcing cross member 1010 and the rear frame 106, the front frame 102 or the rear frame 106 can be sufficiently deformed by the buffer space to release the collision force transmitted to the front frame 102 or the rear frame 106 when frontal collision or rear collision occurs, so that the collision safety of the battery pack can be improved.

Finally, the present embodiment also relates to an automobile in which the above battery pack structure is provided. The automobile of this embodiment sets up foretell battery package structure, can fully release the impact, improves the collision security of battery package, and has fine practicality.

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 battery pack structure includes a battery pack case (1) integrated with a vehicle body, characterized in that:

the battery pack shell (1) is provided with threshold beams (101) which are respectively arranged on the left side and the right side, a front frame (102) which is connected between the front ends of the threshold beams (101) on the two sides, and a rear frame (106) which is connected between the rear ends of the threshold beams (101) on the two sides;

the battery pack shell (1) is further provided with a front reinforcing cross beam (107) and a rear reinforcing cross beam (1010) which are connected between the threshold beams (101) on the two sides, the front reinforcing cross beam (107) is arranged close to the front frame (102), and the rear reinforcing cross beam (1010) is arranged close to the rear frame (106);

a module installation space is defined between the front reinforcing beam (107) and the rear reinforcing beam (1010), and a buffer space is formed between the front reinforcing beam (107) and the front frame (102) and/or between the rear reinforcing beam (1010) and the rear frame (106).

2. The battery pack structure of claim 1, wherein:

the buffer space is filled with flexible materials.

3. The battery pack structure of claim 1, wherein:

the front frame (102) and/or the rear frame (106) are provided with a middle frame body (a) and side frame bodies (b) connected to two ends of the middle frame body (a), the side frame bodies (b) at the two ends are connected with the threshold beam (101), and the side frame bodies (b) at the two ends are obliquely arranged, so that the middle frame body (a) is arched out of the battery pack shell (1).

4. The battery pack structure of claim 1, wherein:

the battery pack shell (1) is further provided with a middle channel (103) located between the threshold beams (101) on two sides, the front end of the middle channel (103) is connected with the front frame (102), and the rear end of the middle channel (103) is connected with the rear frame (106).

5. The battery pack structure of claim 4, wherein:

front seat installs crossbeam (104) and connects in battery package casing (1) front frame (102) with side longeron (105) between front seat installs crossbeam (104), and both sides doorsill beam (101) with respectively be equipped with one between well passageway (103) side longeron (105).

6. The battery pack structure of claim 5, wherein:

the front seat mounting cross beam (104) is divided into two sub cross beams (1041) by the middle channel (103), and the tops of the sub cross beams (1041) are arranged in parallel with the tops of the middle channel (103) and/or the threshold beam (101).

7. The battery pack structure of claim 4, wherein:

the bottom of the middle channel (103) is connected with a reinforcing longitudinal beam (108), the front end of the reinforcing longitudinal beam (108) is connected with the front reinforcing cross beam (107), and the rear end of the reinforcing longitudinal beam (108) is connected with the rear reinforcing cross beam (1010).

8. The battery pack structure of claim 1, wherein:

both sides be connected with back crossbeam (1013) between threshold roof beam (101), back crossbeam (1013) are close to back frame (106) sets up, just back crossbeam (1013) with be equipped with between back frame (106) and put thing box (1014).

9. The battery pack structure according to any one of claims 1 to 8, wherein:

the sill beam (101), the front edge frame (102), the rear edge frame (106), and the front reinforcement cross beam (107) and the rear reinforcement cross beam (1010) are made of extruded aluminum profiles.

10. An automobile, characterized in that:

the automobile is provided with the battery pack structure according to any one of claims 1 to 9.