CN219106367U

CN219106367U - Battery compartment movable anti-collision beam structure with energy-absorbing box

Info

Publication number: CN219106367U
Application number: CN202223163570.1U
Authority: CN
Inventors: 朱红军; 熊乐; 陈亦珂; 刘芳忠; 陈祥仕
Original assignee: CRRC Electric Vehicle Co Ltd
Current assignee: CRRC Electric Vehicle Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-05-30
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a battery compartment movable anti-collision beam structure with an energy-absorbing box, which comprises an anti-collision upright post and the energy-absorbing box, wherein an upper floor framework side longitudinal beam is arranged on one side, close to the inner side, of the upper end of the anti-collision upright post, and a lower battery bracket side longitudinal beam is arranged on one side, close to the inner side, of the lower end of the anti-collision upright post; the energy-absorbing box is arranged at the position outside the middle part of the anti-collision upright post. The utility model has the advantages of simple and compact structure, convenient installation, capability of improving collision protection performance and the like.

Description

Battery compartment movable anti-collision beam structure with energy-absorbing box

Technical Field

The utility model mainly relates to the technical field of vehicle anti-collision equipment, in particular to a battery compartment movable anti-collision beam structure with an energy absorption box.

Background

In the field of electric automobiles, in particular to a pure electric bus, an anti-collision beam is an important protection device for a bottom battery of the pure electric bus to bear side impact. To ensure adequate crashworthiness, conventional crashworthiness beams are often designed to be relatively heavy. Currently, energy conservation and emission reduction put higher and higher requirements on automobile design, and structural optimization and light weight of an anti-collision beam are also becoming increasingly important.

For traditional link up crossbeam formula anticollision roof beam, because of its installation span is great, carry out the lightweight to anticollision roof beam and can reduce its anticollision performance to a great extent, lead to its invasion volume to the battery compartment grow, consequently, need carry out innovative design to the structure of anticollision roof beam, guarantee that it has sufficient anticollision performance when realizing the lightweight of structure, and have the convenience of dismouting concurrently.

For example, a practitioner in chinese patent application (CN 207481637U) discloses a movable mounting structure of an anti-collision beam for a battery of an electric bus, where the anti-collision beam in the technical solution is in a U-shaped opening shape, and has a low bending resistance, poor protection for a battery compartment and protection for a vehicle, and a mounting structure on an upper portion of the anti-collision beam is located below an upper floor frame, so that a space for entering and exiting a power battery is limited. When the spacing between the upper floor framework and the lower frame is limited, even the problem that the power battery cannot be put in or out is caused, which brings great inconvenience to practical operation.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: aiming at the technical problems existing in the prior art, the utility model provides the battery compartment movable anti-collision beam structure with the energy-absorbing box, which has the advantages of simple and compact structure, convenient installation and capability of improving the anti-collision performance.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the battery compartment movable mounting anti-collision beam structure with the energy-absorbing box comprises an anti-collision upright post and the energy-absorbing box, wherein an upper floor framework side longitudinal beam is arranged on the inner side of the upper end of the anti-collision upright post, and a lower battery bracket side longitudinal beam is arranged on the inner side of the lower end of the anti-collision upright post; the energy-absorbing box is arranged at the position outside the middle part of the anti-collision upright post.

As a further improvement of the utility model: the energy absorption box is of a box structure formed by splicing local reinforcing steel sheets; both sides of the energy-absorbing box are provided with concave-convex rib lifting structures.

As a further improvement of the utility model: the energy-absorbing box is provided with a crumple guide groove at four top angles at the outer side for inducing crumple deformation in the collision process.

As a further improvement of the utility model: the energy-absorbing box bottom plate of the energy-absorbing box uses a flat plate, the inner side of the energy-absorbing box bottom plate is welded with the anti-collision upright post along the contact position, and the outer side of the energy-absorbing box bottom plate is connected with the energy-absorbing box to act as a base of the energy-absorbing box in the collision process.

As a further improvement of the utility model: the outside of energy-absorbing box is equipped with the outside shrouding, the outside shrouding is the flat board, welds with the outside terminal surface of energy-absorbing box, is used for playing the dispersed collision load in the collision process, makes the effect that energy-absorbing box can evenly warp.

As a further improvement of the utility model: and the center of the outer sealing plate is provided with a lightening hole.

As a further improvement of the utility model: an upper mounting bracket is arranged on one side, close to the inner side, of the upper end of the anti-collision upright post, and is connected with an upper floor framework side longitudinal beam through the upper mounting bracket.

As a further improvement of the utility model: the upper mounting bracket is U-shaped and is welded on the side longitudinal beam of the upper floor framework in advance, a mounting hole is formed at the joint of the inner side end surface of the upper mounting bracket and the floor framework, and an upper mounting bracket embedded stud is arranged in the mounting hole.

As a further improvement of the utility model: and a lower mounting bracket is arranged on one side, close to the inner side, of the lower end of the anti-collision upright post, and is connected with a side longitudinal beam of a lower battery bracket through the lower mounting bracket.

As a further improvement of the utility model: the lower mounting bracket is in an open box shape and is welded on the side longitudinal beam of the lower battery bracket in advance, so that the upper end face and the lower end face of the lower mounting bracket are level with the upper end face and the lower end face of the side longitudinal beam of the lower battery bracket; the mounting end face of the lower mounting bracket is provided with a mounting hole so as to be connected with the lower end of the anti-collision upright post.

As a further improvement of the utility model: the anti-collision upright post adopts a tubular beam with notches at the upper end and the lower end, and the notches are provided with preset angles.

As a further improvement of the utility model: the upper mounting hole at the upper end of the anti-collision upright post is a circular hole and is connected with the circular mounting hole at the end surface of the upper mounting bracket through a bolt; the lower mounting hole at the lower end of the anti-collision upright post is a kidney-shaped hole and is connected with the circular mounting hole at the end face of the lower mounting bracket through bolts.

Compared with the prior art, the utility model has the advantages that:

the battery compartment movable anti-collision beam structure with the energy-absorbing box has the advantages of simple and compact structure, convenient installation, capability of improving the collision protection performance, smaller span of installation points of the anti-collision beam in the up-down direction of a vehicle, higher bending resistance in the collision direction, obvious advantage of the weight of the anti-collision beam compared with the anti-collision beam transversely arranged, and remarkable light-weight effect. In addition, the upper and lower installing brackets of the anti-collision beam are welded on the vehicle in advance, the anti-collision upright post, the energy-absorbing box, the bottom plate and the sealing plate are combined into a single component, the component can be installed with the vehicle only by one bolt at two ends, the installation efficiency and convenience are greatly improved, the component can be increased and reduced according to actual needs, and the modularization and the universalization of the arrangement can be realized. Therefore, the utility model can reduce the weight of the anti-collision beam, improve the collision protection performance, reduce the disassembly and assembly difficulty, improve the assembly efficiency and realize modularization.

Drawings

Fig. 1 is a schematic diagram of the overall installation structure of the present utility model in a specific application example.

Fig. 2 is a schematic diagram of the principle of the side view structure of the present utility model in a specific application example.

Fig. 3 is a schematic side structural diagram of an anti-collision upright in a specific application example of the utility model.

Fig. 4 is a schematic view of the bottom surface structure of the anti-collision upright post in a specific application example of the utility model.

FIG. 5 is a schematic illustration of the present utility model with an upper mounting bracket and embedded studs in a specific application.

Fig. 6 is a schematic view of the structure of the lower mounting bracket in a specific application example of the present utility model.

FIG. 7 is a schematic view of the structural principle of the crash box in a specific application example of the utility model.

Legend description:

1. side stringers of an upper floor framework; 2. a lower battery bracket side rail; 3. an upper mounting bracket; 4. a lower mounting bracket; 5. an anti-collision upright post; 6. embedding studs on the upper mounting bracket; 7. welding seams; 8. mounting holes on the anti-collision upright posts; 9. mounting holes under the anti-collision upright posts; 10. presetting an angle; 11. a bottom plate of the energy absorption box; 12. an energy absorption box; 13. an energy absorption box outer sealing plate; 14. a rib lifting structure; 15. the collapsing guide groove.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the specific examples.

As shown in fig. 1 to 7, the battery compartment movably-mounted anti-collision beam structure with the energy-absorbing box can be suitable for collision protection of the battery compartment in an electric bus or other types of vehicles, and comprises an anti-collision upright post 5 and an energy-absorbing box 12, wherein an upper floor framework side longitudinal beam 1 is arranged on the inner side of the upper end of the anti-collision upright post 5, and a lower battery bracket side longitudinal beam 2 is arranged on the inner side of the lower end of the anti-collision upright post 5; the energy absorption box 12 is arranged at the position outside the middle part of the anti-collision upright post 5.

Referring to fig. 2, 5 and 6, in a specific application example, an upper mounting bracket 3 is mounted on the inner side of the upper end of the anti-collision upright 5, and is connected with the side rail 1 of the upper floor framework through the upper mounting bracket 3. Further, the upper mounting bracket 3 is in a U-shaped opening shape, a circular mounting hole is formed at the joint of the inner side end surface of the upper floor frame side longitudinal beam 1 and the floor frame, and an upper mounting bracket embedded stud 6 is arranged in the mounting hole.

In a specific application example, a lower mounting bracket 4 is mounted on the inner side of the lower end of the anti-collision upright 5, and is connected with the side rail 2 of the lower battery bracket through the lower mounting bracket 4.

Further, as a preferred embodiment, the upper end surface and the lower end surface of the upper mounting bracket 3 are respectively flush with the upper end surface and the lower end surface of the floor frame, so that the bracket is ensured not to affect the space for entering and exiting the power battery, and the power battery is not limited in assembly, disassembly and the like.

Further, as a preferred embodiment, the lower mounting bracket 4 is formed in an open box shape, and is welded to the lower cell-bracket side rail 2 in advance, and the upper and lower end surfaces thereof are flush with the upper and lower end surfaces of the cell-bracket side rail 2. The installation terminal surface of lower installing support 4 opens has circular mounting hole to be connected with the lower extreme of anticollision stand 5.

Referring to fig. 3, in a specific application example, the anti-collision upright 5 is a tubular beam with notches at the upper and lower ends, and the notches have a preset angle 10, for example, the preset angle 10 of the notches may be preset to 45 °, so as to form an operation space for installing bolts at the upper and lower ends. It should be noted that, in the actual assembly, the size of the preset cut angle may be adjusted according to the specific structure and installation requirements, such as 30 ° and 60 °, etc., but it is suggested to use a smaller cut angle on the premise of satisfying the installation space, so as to ensure sufficient rigidity and strength of the collision post 5 in the collision direction in the upper and lower end installation regions.

Referring to fig. 4, in a specific application example, an upper mounting hole 8 at the upper end of the anti-collision upright 5 is a circular hole, and is in bolted connection with a circular mounting hole at the end surface of the upper mounting bracket 3; the lower mounting hole 9 of crashproof stand 5 lower extreme is rectangular shape waist shape hole, carries out bolted connection with the circular mounting hole of lower installing support 4 terminal surface, and rectangular shape waist shape hole can be realized along the vehicle up-and-down direction adjustable to avoid because of making and assembly error causes the inconvenient problem of installation even unable installation.

Referring to fig. 7, in a specific application example, the energy-absorbing box 12 is formed by splicing a partially reinforced sheet into a box structure. The spliced energy absorption boxes 12 are provided with concave-convex rib-forming structures 14 on two sides, and the function of guiding deformation in the collision process is achieved. The crash box 12 is provided with a crumple guide groove 15 at four top corners at the outer side, and plays a role in inducing crumple deformation in the collision process.

Further, as a preferred embodiment, the crash box bottom plate 11 uses a rectangular flat plate, the inner side of the crash box bottom plate is welded with the crash post 5 along the contact position, and the outer side of the crash box bottom plate is connected with the crash box 12, and the crash box bottom plate acts as a crash box base during the collision process.

As a preferred embodiment, an outer sealing plate 13 is further disposed on the outer side of the energy absorption box 12, and the outer sealing plate 13 is also a rectangular plate and is welded with the outer end surface of the energy absorption box 12. Meanwhile, a lightening hole may be formed in the center of the outer sealing plate 13. The outer sealing plate 13 mainly plays a role in dispersing collision load in the collision process, so that the energy-absorbing box 12 can be uniformly deformed, and the energy-absorbing effect and potential of the energy-absorbing box 12 are exerted to the greatest extent.

During the use process, the anti-collision beam can realize the functions of energy absorption firstly and protection secondly, and the energy absorption box 12 is used for absorbing collision energy to the greatest extent at the beginning of collision, so that the collision load and energy borne by the anti-collision upright post 5 and the vehicle body framework are reduced to the greatest extent, and the protection effect of the anti-collision beam is improved.

The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the utility model without departing from the principles thereof are intended to be within the scope of the utility model as set forth in the following claims.

Claims

1. The battery compartment movable mounting anti-collision beam structure with the energy-absorbing box is characterized by comprising an anti-collision upright post (5) and the energy-absorbing box (12), wherein an upper floor framework side longitudinal beam (1) is arranged on one side, close to the inner side, of the upper end of the anti-collision upright post (5), and a lower battery bracket side longitudinal beam (2) is arranged on one side, close to the inner side, of the lower end of the anti-collision upright post (5); the energy absorption box (12) is arranged at the position outside the middle part of the anti-collision upright post (5).

2. The battery compartment movable mounting anti-collision beam structure with the energy absorption box according to claim 1, wherein the energy absorption box (12) is formed by splicing a local sheet rib to form a box structure; both sides of the energy-absorbing box (12) are provided with concave-convex rib-lifting structures (14).

3. The battery compartment movably-mounted anti-collision beam structure with the energy-absorbing box according to claim 2, wherein the energy-absorbing box (12) is provided with a crumple guide groove (15) at four outer vertex angles for inducing crumple deformation in the collision process.

4. The battery compartment movably-mounted anti-collision beam structure with the energy-absorbing box according to claim 2, wherein the energy-absorbing box bottom plate (11) of the energy-absorbing box (12) is a flat plate, the inner side of the energy-absorbing box bottom plate is welded with the anti-collision upright post (5) along the contact part, the outer side of the energy-absorbing box bottom plate is connected with the energy-absorbing box (12), and the energy-absorbing box bottom plate is used as an energy-absorbing box base in the collision process.

5. The battery compartment movable anti-collision beam structure with the energy-absorbing box according to claim 2, wherein an outer sealing plate (13) is arranged on the outer side of the energy-absorbing box (12), the outer sealing plate (13) is a flat plate and is welded with the outer end face of the energy-absorbing box (12) to disperse collision load in the collision process, so that the energy-absorbing box (12) can deform uniformly.

6. The battery compartment movably-mounted anti-collision beam structure with the energy absorption box according to claim 5, wherein the center of the outer sealing plate (13) is provided with a weight reducing hole.

7. The battery compartment movably-mounted anti-collision beam structure with the energy absorption box according to any one of claims 1 to 6, wherein an upper mounting bracket (3) is mounted on one side, which is close to the inner side, of the upper end of the anti-collision upright post (5), and the upper mounting bracket (3) is connected with an upper floor framework side longitudinal beam (1).

8. The battery compartment movable mounting anti-collision beam structure with the energy-absorbing box according to claim 7, wherein the upper mounting bracket (3) is in a U-shaped opening shape, is welded on the side longitudinal beam (1) of the upper floor framework in advance, and is provided with a mounting hole at the joint of the inner side end surface and the floor framework, and an upper mounting bracket embedded stud (6) is arranged in the mounting hole.

9. The battery compartment movably-mounted anti-collision beam structure with the energy absorption box according to any one of claims 1 to 6, wherein a lower mounting bracket (4) is mounted on one side, which is close to the inner side, of the lower end of the anti-collision upright post (5), and the lower mounting bracket (4) is connected with a side longitudinal beam (2) of a lower battery bracket.

10. The battery compartment movable mounting anti-collision beam structure with the energy absorption box according to claim 9, wherein the lower mounting bracket (4) is in an open box shape, and is welded on the side longitudinal beam (2) of the lower battery bracket in advance, so that the upper end face and the lower end face of the lower mounting bracket are level with the upper end face and the lower end face of the side longitudinal beam (2) of the lower battery bracket; the installation end face of the lower installation support (4) is provided with an installation hole so as to be connected with the lower end of the anti-collision upright post (5).

11. The battery compartment movably-mounted anti-collision beam structure with the energy absorption box according to any one of claims 1 to 6, wherein the anti-collision upright post (5) adopts a tubular beam with notches at the upper end and the lower end, and the notches are provided with preset angles (10).

12. The battery compartment movable mounting anti-collision beam structure with the energy absorption box according to any one of claims 1 to 6, wherein an upper mounting hole (8) at the upper end of the anti-collision upright post (5) is a circular hole and is connected with a circular mounting hole at the end face of the upper mounting bracket (3) through bolts; the lower mounting hole (9) at the lower end of the anti-collision upright post (5) is a kidney-shaped hole and is connected with the circular mounting hole at the end face of the lower mounting bracket (4) through bolts.