CN217022670U

CN217022670U - Energy-absorbing protective beam of electric automobile

Info

Publication number: CN217022670U
Application number: CN202123252283.3U
Authority: CN
Inventors: 刘黎明; 翁盛锋; 严长生; 贺斌; 乐利锋; 陆东平; 袁伟; 沈良鹏
Original assignee: Ningbo Tuopu Automobile Electronic Co ltd
Current assignee: Ningbo Tuopu Automobile Electronic Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-07-22
Anticipated expiration: 2031-12-23

Abstract

The utility model relates to the technical field of manufacturing and production of automobiles and auxiliary frames, in particular to an energy-absorbing protective beam of an electric automobile. The protection beam comprises an integrally cast protection beam main body, wherein the protection beam main body comprises a central energy-absorbing reinforcing plate and vehicle beam connecting plates which are integrally connected with the energy-absorbing reinforcing plate and are arranged on two sides of the protection beam main body; the energy-absorbing reinforcing plate is provided with an energy-absorbing cavity, the head end of the outermost side of the vehicle beam connecting plate is provided with a vehicle body connecting plate, a clamping energy-absorbing plate is arranged between the vehicle body connecting plate and the energy-absorbing reinforcing plate, a plurality of gull wing reinforcing pieces are transversely arranged on the clamping energy-absorbing plate, and triangular gull wing pieces are arranged on the two sides of the head and the tail of each gull wing reinforcing piece or arc-shaped cyclotomic square extending pieces are arranged in the middle of each gull wing reinforcing piece.

Description

Energy-absorbing protective beam of electric automobile

Technical Field

The utility model relates to the technical field of manufacturing and production of automobiles and auxiliary frames, in particular to an energy-absorbing protective beam of an electric automobile.

Background

An energy-absorbing protective beam is an associated component of a suspension system of various vehicles, and is often arranged at the position of a rear cross beam of an auxiliary frame or a later position of the auxiliary frame to absorb front impact force, impact force and the like for a rear structure of the auxiliary frame of the vehicle, and in the design and production of a chassis structure of an electric vehicle, the structure of a battery loading structure and a battery protection system of the battery loading structure is heavier except for the suspension system which is used as a main function, because a vehicle-mounted battery can cause fire, explosion and the like if being punctured or damaged, serious personal safety accidents and vehicle damage can be caused, so that the conventional electric vehicle can protect the battery by using energy absorption in a common energy-absorbing protective beam arranged behind the suspension system, the prior art of the protective beam is generally arched or trapezoidal, the overall weight can be lighter as the electric vehicle requires, and the energy-absorbing protective beam can be manufactured correspondingly reduced in weight, however, since the overall rigidity is reduced and the displacement is increased, an energy-absorbing guard beam having appropriate rigidity and flexibility and reduced displacement as much as possible without increasing the weight is required.

Disclosure of Invention

In order to solve the problems in the prior art, the energy-absorbing protective beam of the electric automobile is provided, the symmetrical multi-layer multi-stage reinforcing plate is adopted, the reinforcing plate is of a square-shaped gull wing structure with a round rear side, the reinforcing plate structure with wide two sides and narrow middle can be used for reinforcing the structural rigidity of the whole, the structural part can be transferred to the left side and the right side more easily, and the purpose of reducing the weight of the structural part is achieved.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the energy-absorbing guard beam of the electric automobile comprises an integrally cast guard beam main body, wherein the guard beam main body comprises a central energy-absorbing reinforcing plate and vehicle beam connecting plates which are integrally connected with the energy-absorbing reinforcing plate and arranged on two sides of the energy-absorbing reinforcing plate; the energy-absorbing reinforcing plate is provided with an energy-absorbing cavity, the head end of the outermost side of the car beam connecting plate is provided with a car body connecting plate, a clamping energy-absorbing plate is arranged between the car body connecting plate and the energy-absorbing reinforcing plate, a plurality of gull wing reinforcing pieces are transversely arranged on the clamping energy-absorbing plate, and the gull wing reinforcing pieces are arranged on the two sides of the head and the tail of each gull wing reinforcing piece in a triangular shape or are provided with arc cyclotomic square extending pieces at the center.

Preferably, vehicle connectors are arranged at the head end of the protective beam main body on two sides of the energy-absorbing reinforcing plate, extend in the width direction of a vehicle, and are respectively provided with a vehicle body connecting seat suitable for being fixed with a vehicle body of the vehicle on two sides in the width direction.

Preferably, the vehicle connector is spaced apart from the vehicle connector at least partially or equally the length of the energy absorption reinforcement panel to form a front cushion chamber. The front cushion chamber can make the front coming force have no contact position.

Preferably, the whole energy-absorbing reinforcing plate is obliquely designed, and is at least obliquely downward 35 degrees. The design of the oblique downward direction can increase the avoiding efficiency, and the transferred square is changed into the downward direction.

Preferably, the bottom of the energy-absorbing reinforcing plate and the vehicle body connecting plates on two sides form a bottom energy-absorbing cavity. The upper energy absorption cavity and the lower energy absorption cavity can increase the energy absorption efficiency.

Preferably, side energy absorption platforms are arranged on the two sides of the energy absorption reinforcing plate in a protruding mode, and the side energy absorption platforms and the vehicle body connecting plate can form a triangular side buffer cavity.

Preferably, the energy-absorbing reinforcing plate metal plate is provided with an energy-absorbing cavity, the energy-absorbing cavity is formed by concavely arranging an inclined plane body at the central position of the whole protective beam main body, two sides of the inclined plane body are protruded to form flanges, and a pair of side energy-absorbing platforms is further extended from the flanges to the left side and the right side for the purposes of rigidity and adjustment of the size of the side buffer cavity. The design of energy-absorbing platform is through collapsing in the energy-absorbing platform with deformation absorption because of the impact force of collision production, through collapsing in energy-absorbing platform, cushion chamber with deformation absorption because of the impact force of collision production, and then reduce the displacement distance of sub vehicle frame.

This automobile sub vehicle frame and rear muffler's combination packing frame has following beneficial effect: 1. the high-pressure casting process integration is used, welding and assembling are not needed, the symmetrical multi-layer multi-stage reinforcing plate design is adopted, the reinforcing plate is of a square gull wing structure with a circular rear side, and a special reinforcing plate structure with wide two sides and narrow middle can be used for reinforcing the structural rigidity of the whole body, so that the structural part can be transferred to the left side and the right side more easily, and the purpose of reducing the weight of the structural part is achieved; 2. the design of a plurality of energy absorption cavities and energy absorption platforms is adopted, impact force generated by collision is absorbed by deformation through crumpling in the energy absorption platforms and the buffer cavities, so that the displacement distance of the auxiliary frame is reduced, the safety performance of the battery pack is improved, the design of a plurality of stacked concave-convex platforms in the prior art is reduced, the overall strength is increased, and the manufacturing process is greatly reduced; 3. adopt the energy-absorbing plate body structure of a plurality of slant ramps, the impact force with absorbing guides downwards, avoid direct impact backward, thereby the lower surface of this structure is higher than the bottom surface of the battery package of vehicle, when the vehicle is traveling on the road surface that has the barrier, subaerial barrier strikes the lower surface of this structure earlier, can directly not cause the damage to the high-tension line of battery package casing or battery package front end, consequently, the supporting part can effectively prevent to get into direct striking battery package casing and the battery package high-tension line of barrier of chassis below from vehicle the place ahead, further protect battery package casing and battery package high-tension line, promote the battery package front end and scrape end barrier propterty.

Drawings

FIG. 1 is a top view of a main body of a guard beam;

FIG. 2 is a bottom view of the main body of the protection beam;

FIG. 3 is a top perspective view of the main body of the guard beam;

fig. 4 is a bottom perspective view of the main body of the protection beam.

Description of the reference numerals: the protection beam comprises a protection beam main body 1, an energy absorption reinforcing plate 2, a vehicle beam connecting plate 3, an energy absorption cavity 4, a vehicle body connecting plate 5, a clamping energy absorption plate 6, a gull wing reinforcing sheet 7, a gull wing sheet 8, a vehicle connector 9, a vehicle body connecting seat 10, a front side buffer cavity 11, a bottom energy absorption cavity 12, a side energy absorption platform 13, a side buffer cavity 14 and a square extension sheet 15.

Detailed Description

The utility model will be further explained with reference to the accompanying drawings:

fig. 1 shows an electric automobile's energy-absorbing guard beam, guard beam main part 1 including integrative casting, guard beam main part 1 includes central energy-absorbing reinforcing plate 2 and constitutes at the roof beam connecting plate 3 of its both sides with the setting of energy-absorbing reinforcing plate 2 body coupling, and fig. 1 and the shown condition, this guard beam wholly is an isosceles trapezoid structure, it is middle wide both sides slope narrows gradually, narrow reinforcing plate structure can be used to strengthen holistic structural rigidity in the middle of its special both sides is wide, can also make this structure transmit more easily to the left and right sides, the mesh that has still reached the weight that reduces this structure simultaneously, wherein: as shown in fig. 4, the energy absorption cavity 4 is formed by the sheet metal of the energy absorption reinforcing plate 2, the so-called energy absorption cavity 4 is formed by recessing an inclined plane body 15 at the central position of the whole protective beam main body 1, two sides of the inclined plane body 15 are protruded to form a rib 16, and a pair of side energy absorption platforms 13 are further extended from the rib 16 to the left and right sides for rigidity and adjustment of the size of the side buffer cavity 14; the energy absorption table is designed to deform and absorb impact force generated by collision by collapsing inwards the energy absorption table;

as shown in fig. 3, the outermost head end of the beam connecting plate 3 is provided with a vehicle body connecting plate 5, the outermost head end is a planar structure and is used for being attached to a vehicle body to be hinged, a clamping energy-absorbing plate 6 is arranged between the vehicle body connecting plate 5 and the energy-absorbing reinforcing plate 2, as shown in fig. 1, the clamping energy-absorbing plate 6 is arranged between the vehicle connector 9 and the vehicle body connecting plate 5 and is an arc-shaped vertical plate structure in front of a seal, as shown in fig. 1 and 4, a plurality of gull wing reinforcing plates 7 are transversely arranged on the clamping energy-absorbing plate 6, the gull wing reinforcing plates 7 are provided with triangular gull wing fins 8 at the head and tail sides or arc-shaped square extending fins 15 at the center, the whole shape is a square sheet body at the center, and the gull wing reinforcing plates extend towards the two sides and are gradually raised in height. The high-pressure casting process is integrated, welding and assembling are not needed, the design of a symmetrical multi-layer multi-stage reinforcing plate is adopted, the reinforcing plate is of a square gull wing structure with a round-cut back side, and a special reinforcing plate structure with wide two sides and narrow middle can be used for reinforcing the structural rigidity of the whole body, so that the structural part can be transferred to the left side and the right side more easily, and the purpose of reducing the weight of the structural part is achieved;

as shown in fig. 1, vehicle connectors 9 are arranged at the head end of the protective beam main body 1 on two sides of the energy-absorbing reinforcing plate 2, and the vehicle connectors 9 extend in the width direction of the vehicle and are respectively provided with a vehicle body connecting seat 10 suitable for being fixed with the vehicle body of the vehicle on two sides in the width direction.

Continuing with fig. 1 and 3, the vehicle attachment 9 is spaced from the vehicle attachment 9 at least partially or equally the length of the energy absorption reinforcement panel 2 to form a front cushion chamber 11. The front cushion chamber can make the front incoming force become out of contact with the position.

As shown in fig. 3 and 4, the energy-absorbing reinforcement panel 2 is designed to be inclined at least 35 ° downward. The design of the oblique downward direction can increase the avoiding efficiency, and the transferred square is changed into the downward direction.

Preferably, the bottom of the energy-absorbing reinforcing plate 2 and the vehicle body connecting plates 5 on two sides form a bottom energy-absorbing cavity 12. The upper energy absorption cavity and the lower energy absorption cavity can increase the energy absorption efficiency.

As shown in FIG. 2, side energy absorption platforms 13 are convexly arranged on two sides of the energy absorption reinforcing plate 2, and the side energy absorption platforms 13 and the vehicle body connecting plate 5 can form a triangular side buffer cavity 14.

As shown in fig. 3 and 4, the energy-absorbing reinforcing plate 2, the inclined plane body 15, the rib 16 and the side energy-absorbing platform 13 adopt an energy-absorbing plate body structure with a plurality of inclined ramps to guide the absorbed impact force downwards and avoid direct backward impact, so that the lower surface of the structure is higher than the bottom surface of a battery pack of a vehicle, and the clamping energy-absorbing plate 6 is used for force transmission and guide in an inclined structure.

The utility model is described above with reference to the accompanying drawings, and it is obvious that the implementation of the utility model is not limited by the above-mentioned manner, and it is within the protection scope of the utility model to use various modifications of the inventive method concept and technical solution, or to directly apply the inventive concept and technical solution to other occasions without modification.

Claims

1. An energy-absorbing guard beam of an electric automobile comprises an integrally cast guard beam main body (1), wherein the guard beam main body (1) comprises a central energy-absorbing reinforcing plate (2) and vehicle beam connecting plates (3) which are integrally connected with the energy-absorbing reinforcing plate (2) and arranged on two sides of the energy-absorbing reinforcing plate; the method is characterized in that: energy-absorbing reinforcing plate (2) sets up energy-absorbing chamber (4), the outside head end of car beam connecting plate (3) sets up vehicle body connecting plate (5), sets up clamping energy-absorbing plate (6) between vehicle body connecting plate (5) to energy-absorbing reinforcing plate (2), transversely set up a plurality of gull wing reinforcement pieces (7) on clamping energy-absorbing plate (6), gull wing reinforcement piece (7) head and the tail both sides are provided with gull wing piece (8) of triangle-shaped or central authorities still are provided with the square extension piece of arc cyclotomy.

2. The energy-absorbing guard beam of claim 1, wherein: the protective beam is characterized in that vehicle connectors (9) are arranged at the head ends of the protective beam main bodies (1) on the two sides of the energy-absorbing reinforcing plates (2), the vehicle connectors (9) extend in the width direction of a vehicle, and vehicle body connecting seats (10) which are suitable for being fixed to a vehicle body of the vehicle are arranged on the two sides of the vehicle connectors in the width direction respectively.

3. The energy-absorbing guard beam of claim 2, wherein: the vehicle connector (9) and the vehicle connector (9) are at least partially separated or equally separated by the length of the energy absorption reinforcing plate (2) to form a front side buffer cavity (11).

4. The energy-absorbing guard beam of the electric vehicle as claimed in claim 1 or 2, wherein: the energy-absorbing reinforcing plate (2) is integrally designed in an inclined manner, and is at least inclined downwards by 35 degrees.

5. The energy-absorbing guard beam of claim 1 or 2, wherein: the bottom of the energy-absorbing reinforcing plate (2) and the vehicle body connecting plates (5) on two sides form a bottom energy-absorbing cavity (12).

6. The energy-absorbing guard beam of the electric vehicle as claimed in claim 1 or 2, wherein: the side energy absorption platform (13) is convexly arranged on two sides of the energy absorption reinforcing plate (2), and the side energy absorption platform (13) and the vehicle body connecting plate (5) can form a triangular side buffer cavity (14).

7. The energy-absorbing guard beam of claim 1 or 2, wherein: the energy-absorbing reinforcing plate metal plate is provided with an energy-absorbing cavity, the energy-absorbing cavity is formed by concavely arranging an inclined plane body at the central position of the whole protective beam main body, two sides of the inclined plane body are protruded to form flanges, and a pair of side energy-absorbing platforms extend from the flanges to the left side and the right side for further rigidity and adjustment of the size of the side buffer cavity.