CN214028874U

CN214028874U - Electric automobile threshold structure

Info

Publication number: CN214028874U
Application number: CN202022292291.XU
Authority: CN
Inventors: 付军鹏
Original assignee: IAT Automobile Technology Co Ltd
Current assignee: IAT Automobile Technology Co Ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-08-24
Anticipated expiration: 2030-10-15

Abstract

The utility model relates to an electric automobile threshold structure belongs to the technical field of automobile design and manufacturing. The utility model discloses an electric automobile doorsill structure, which comprises a doorsill outer plate, a doorsill inner plate and an aluminum doorsill stiffening beam; the threshold inner panel includes the first vertical plane section of contact with the seat crossbeam and the vertical plane section of second that corresponds with power battery, is provided with between first and the vertical plane section of second and dodges the section, dodges the effective collision space definition above the section and be upper portion collision space, dodges the effective collision space definition of section below and be lower part collision space, and the aluminium threshold stiffening beam is located upper portion collision space, is provided with the clearance between the rear end of aluminium threshold stiffening beam and the first vertical plane section of threshold inner panel. The utility model relates to an electric automobile threshold structure not only can effectually disperse the outer load to the roof beam structure structurally with the absorption collision energy when bumping, guaranteed threshold cavity effective crashworthiness to power battery's the space of arranging has still been increased.

Description

Electric automobile threshold structure

Technical Field

The utility model relates to a technical field of automobile design and manufacturing, more specifically says, the utility model relates to an electric automobile threshold structure.

Background

As shown in fig. 1, in the prior art, the cross-sectional shape of the rocker outer plate 1 and the rocker inner plate 2 is a rectangular structure with a relatively regular pattern, the vertical surface of the rocker inner plate close to the power battery is a complete plane, a reasonable safety gap is kept between the plane and the power battery 5, the upper part of the plane is in contact with a seat cross beam 6, and the plane serves as a limiting surface for the external dimension of the power battery, and an effective collision space 7 of the plane extends from the rocker outer plate 1 to the rocker inner plate 2. The structure does not fully utilize the effective collision space of the section of the doorsill, reduces the external size of the power battery, and does not enable the electric quantity of the whole vehicle to reach the maximum state. In the structure, in order to deal with the safety of the column collision, a doorsill reinforcing beam 3 is designed in a doorsill cavity, the doorsill reinforcing beam 3 is of a rolled steel plate structure, and is communicated with the front and the back in the doorsill, and when external load of the collision is received, the external load is borne by the doorsill reinforcing beam 3 and a plurality of supporting plates 4 (shown by dotted lines in the figure). The steel part with the structure has larger weight, does not utilize light weight, and has good energy absorption effect without aluminum alloy in the energy absorption effect. The large number of support plates inside the door sill is disadvantageous from the point of view of cost and weight.

In order to meet the requirement of electric vehicle light weight, in the prior art, the inner and outer plates of the traditional steel threshold are kept unchanged, meanwhile, an internal reinforcing part is replaced by an aluminum structure, an equal-section structure is formed by extruding the aluminum according to the process characteristics of the aluminum, the outer plate of the threshold extends to the inner plate of the threshold, the inner plate of the threshold is perfectly attached to the rear plate of the threshold, the structure does not consider the arrangement space of the power battery, in addition, when the side collision occurs, the load is directly transmitted to the inner plate of the threshold, and potential safety hazards exist in the seat beam and the power battery.

SUMMERY OF THE UTILITY MODEL

For the above-mentioned technical problem who exists among the solution prior art, the utility model aims to provide an electric automobile threshold structure.

The utility model discloses an electric automobile doorsill structure, which comprises a doorsill outer plate, a doorsill inner plate and an aluminum doorsill stiffening beam; the outer door sill plate and the inner door sill plate are respectively welded at an upper connecting end and a lower connecting end to form an effective collision space, the inner door sill plate comprises a first vertical plane section which is in contact with a seat beam and a second vertical plane section which corresponds to a power battery, an avoidance section is arranged between the first vertical plane section and the second vertical plane section, the avoidance section gradually faces the outer door sill plate from top to bottom, the effective collision space above the avoidance section is defined as an upper collision space, the effective collision space below the avoidance section is defined as a lower collision space, the aluminum door sill stiffening beam is positioned in the upper collision space, the front end of the aluminum door sill stiffening beam is fixed with the outer door sill plate through structural adhesive, a gap is arranged between the rear end of the aluminum door sill stiffening beam and the first vertical plane section of the inner door sill plate, and the upper end of the aluminum door sill stiffening beam is welded with the connecting end of the inner door sill plate through an upper supporting plate, the lower end of the aluminum doorsill reinforcing beam is welded with the lower connecting end of the doorsill inner plate through a lower supporting plate and a jack reinforcing plate.

The aluminum doorsill reinforcing beam extends along the length direction of the aluminum doorsill reinforcing beam and is of an equal cross-section structure, and the length direction of the aluminum doorsill reinforcing beam is parallel to the doorsill outer plate and the doorsill inner plate.

Wherein the aluminum rocker reinforcement beam includes a first energy absorbing structure adjacent to the rocker outer panel and a second energy absorbing structure adjacent to the rocker inner panel.

The first energy absorption structure is provided with a gradually-increased cross section in the direction from the threshold outer plate to the threshold inner plate.

Wherein the second energy absorbing structure has substantially equal cross-sections and may further have reinforcing ribs disposed therein.

Wherein the upper support plate is fixed to an upper portion of the second energy absorbing structure by an FDS connection rivet; the lower support plate is fixed to the lower portion of the second energy absorbing structure by an FDS connection rivet.

The lower support plate is located in the middle of the lower end of the aluminum doorsill reinforcing beam, and the jack reinforcing plates are located on two sides of the lower end of the aluminum doorsill reinforcing beam.

The inner doorsill plate further comprises an upper end face section and a lower end face section, the upper end face section is connected with the first vertical plane section, the lower end face section is connected with the second vertical plane section, an upper connecting end is arranged on the upper end face section, and a lower connecting end is arranged below the lower end face section; the doorsill outer plate comprises an outer plate body section, an upper transition section, a lower transition section, an upper connecting end and a lower connecting end, the upper connecting end of the doorsill outer plate is welded with the upper connecting end of the doorsill inner plate, and the lower connecting end of the doorsill outer plate is welded with the lower connecting end of the doorsill inner plate.

The front end of the power battery is provided with a connecting part, and the connecting part is fixed with the lower end face section of the inner doorsill plate through a bolt.

Compared with the prior art, the utility model discloses an electric automobile threshold structure has following beneficial effect:

to the performance requirement of electric automobile, the threshold stiffening beam chooses the material of aluminum alloy for use, it is just to the seat crossbeam to arrange the position, and be provided with the clearance between the inner panel, and it is fixed through backup pad and jack, this kind of structure can make full use of aluminium's energy-absorbing effect, can more effectually disperse the external load to the roof beam structure during side impact and absorb the collision energy, the effective collision performance of threshold cavity has been guaranteed, and under the condition that the stiffening beam is not set up in the inside lower part space of threshold simultaneously, power battery's arrangement space has still been increased, guarantee power battery's space maximize, increase the electric quantity, improve continuation of the journey mileage.

Drawings

Fig. 1 is a schematic cross-sectional view of a prior art car sill structure.

Fig. 2 is a schematic position diagram of the electric automobile threshold structure in an automobile according to the present invention.

Fig. 3 is a schematic sectional view of the electric vehicle doorsill structure of the present invention (sectional view a-a of fig. 2).

Fig. 4 is an axonometric view of the inner panel structure of the doorsill of the present invention.

Fig. 5 is an exploded view of the inner panel structure of the rocker of the present invention.

Fig. 6 is a side view of the inner panel structure of the rocker of the present invention.

Detailed Description

The following description will be made in conjunction with the embodiments of the present invention to further explain the structure of the electric automobile threshold, so as to help those skilled in the art to understand the technical solution of the present invention more completely, accurately and deeply.

Example 1

As shown in fig. 2 to 3, the electric vehicle rocker structure of the present embodiment includes a rocker outer panel 10, a rocker inner panel 20, an aluminum rocker reinforcement beam 30, an upper support panel 40, and a lower support panel 50. The outer sill panel 10 and the inner sill panel 20 are welded at the upper connecting end and the lower connecting end to form an effective collision space 90, respectively, with reference to fig. 2-6, the inner sill panel 20 includes a first vertical plane section 21 contacting the seat cross member 80 and a second vertical plane section 22 corresponding to the power battery 70, an avoidance section 23 is disposed between the first vertical plane section 21 and the second vertical plane section 22, the avoidance section 23 gradually faces the outer sill panel 10 from top to bottom, the effective collision space 90 above the avoidance section 23 is defined as an upper collision space, the effective collision space 90 below the avoidance section 23 is defined as a lower collision space, the aluminum sill reinforcement beam 30 is located in the upper collision space, the aluminum sill reinforcement beam 30 extends along the length direction thereof and has a uniform cross-sectional structure, the length direction of the aluminum sill reinforcement beam 30 is parallel to the outer sill panel 10 and the inner sill panel 20, the front end of the aluminum doorsill stiffening beam 30 and the doorsill outer panel 10 are fixed through structural adhesive 60, and a gap is formed between the rear end of the aluminum doorsill stiffening beam 30 and the first vertical plane section 21 of the doorsill inner panel 20, so that the collision force can be prevented from being directly transmitted to the doorsill inner panel along the aluminum doorsill stiffening beam 30 when a collision occurs, the energy absorption effect of the aluminum doorsill stiffening beam 30 can be favorably exerted, and the collision performance of the seat cross beam can be ensured by transmitting and dispersing the collision beam through the upper supporting plate 40, the lower supporting plate 50 and the like. The upper end of the aluminum sill reinforcement beam 30 is welded to the upper end of the sill inner panel 20 through an upper support plate 40, and the lower end of the aluminum sill reinforcement beam 30 is welded to the lower end of the sill inner panel 20 through a lower support plate 50 and a jack reinforcement plate 63. In the embodiment, the avoidance section 23 and the second vertical plane section 22 form an avoidance battery structure 100 with the power battery, that is, the storage space of the power battery is enlarged, and meanwhile, since the aluminum doorsill reinforcement beam 30 is only located in the upper collision space, and the lower collision space is supported by the lower support plate 50 and the jack reinforcement plate 63, the safety requirement of the power battery when a collision occurs is also ensured.

As shown in fig. 5, the aluminum rocker reinforcement beam 30 includes a first energy absorbing structure 31 adjacent to the rocker outer panel 10 and a second energy absorbing structure 32 adjacent to the rocker inner panel 20, the first energy absorbing structure 31 has a gradually increasing cross section in a direction from the rocker outer panel 10 to the rocker inner panel 20, the second energy absorbing structure 32 has a substantially equal cross section, and a reinforcing rib may be further provided in the second energy absorbing structure 32. The combination of the gradual change section and the equal section is not only beneficial to the transmission of the collision force to ensure the stability of the structure, but also is beneficial to exerting the energy absorption effect of the aluminum structure. The upper support plate 40 is secured to the upper portion of the second energy absorbing structure 32 by FDS attachment rivets 61. The lower support plate 50 is also secured to the lower portion of the second energy absorbing structure 32 by FDS attachment rivets 61, which are well known in the art and will not be described in detail herein. As shown in fig. 4, the lower support plates 50 are located at the middle of the lower end of the aluminum rocker reinforcement beam 30, and the jack reinforcement plates 63 are located at both sides of the lower end of the aluminum rocker reinforcement beam 30, thereby providing lower support of the aluminum rocker reinforcement beam 30 and also ensuring safety of the battery structure 100 in the event of a collision.

Specifically, as shown in fig. 5, the inner sill panel 20 further includes an upper end surface section 26 and a lower end surface section 27, the upper end surface section 26 is connected to the first vertical plane section 21, the lower end surface section 27 is connected to the second vertical plane section 22, an upper connection end 24 is disposed on the upper end surface section 26, and a lower connection end 25 is disposed below the lower end surface section 27. As shown in fig. 2, the rocker outer panel 10 includes an outer panel body section 11, an upper transition section 12, a lower transition section 13, an upper connecting end 14, and a lower connecting end 15, the upper connecting end 14 of the rocker outer panel 10 is welded to an upper connecting end 24 of the rocker inner panel 20, and the lower connecting end 15 of the rocker outer panel 10 is welded to a lower connecting end 25 of the rocker inner panel 20. The front end of the power battery is provided with a connecting part 71, and the connecting part 71 and the lower end surface section 27 of the threshold inner plate 20 are fixed through a bolt 62.

The inner doorsill plate and the outer doorsill plate are integrally processed and formed by steel plates, and the aluminum doorsill reinforcing beam is formed by extrusion of aluminum or aluminum alloy.

The electric automobile threshold structure of this embodiment has innovated position, shape and the fixed mode of aluminium threshold stiffening beam, has both guaranteed the security of seat crossbeam and power battery after the collision takes place, has also increased power battery's installation space simultaneously. The aluminum reinforcing beam structure is adopted, so that the weight of the vehicle body is reduced, and the part cost is reduced; the technical scheme of this embodiment has been verified fully, is applied to electric automobile (including pure electric vehicles), under the prerequisite of guaranteeing the side impact performance, the effectual space that arranges that has improved power battery has reduced the weight of automobile body to can improve the continuation of the journey mileage of vehicle, and also reduced the manufacturing cost of part.

For those skilled in the art, the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements are all within the protection scope of the present invention as long as the technical solution of the present invention is adopted.

Claims

1. An electric automobile doorsill structure comprises a doorsill outer plate, a doorsill inner plate and an aluminum doorsill stiffening beam; the method is characterized in that: the outer door sill plate and the inner door sill plate are respectively welded at an upper connecting end and a lower connecting end to form an effective collision space, the inner door sill plate comprises a first vertical plane section which is in contact with a seat beam and a second vertical plane section which corresponds to a power battery, an avoidance section is arranged between the first vertical plane section and the second vertical plane section, the avoidance section gradually faces the outer door sill plate from top to bottom, the effective collision space above the avoidance section is defined as an upper collision space, the effective collision space below the avoidance section is defined as a lower collision space, the aluminum door sill stiffening beam is positioned in the upper collision space, the front end of the aluminum door sill stiffening beam is fixed with the outer door sill plate through structural adhesive, a gap is arranged between the rear end of the aluminum door sill stiffening beam and the first vertical plane section of the inner door sill plate, and the upper end of the aluminum door sill stiffening beam is welded with the connecting end of the inner door sill plate through an upper supporting plate, the lower end of the aluminum doorsill reinforcing beam is welded with the lower connecting end of the doorsill inner plate through a lower supporting plate and a jack reinforcing plate.

2. The electric automobile doorsill structure according to claim 1, wherein: the aluminum threshold reinforcing beam extends along the length direction of the aluminum threshold reinforcing beam and is of a uniform cross-section structure.

3. The electric automobile doorsill structure according to claim 2, wherein: the length direction of the aluminum doorsill reinforcing beam is parallel to the doorsill outer plate and the doorsill inner plate.

4. The electric automobile doorsill structure according to claim 1, wherein: the aluminum rocker reinforcement beam includes a first energy absorbing structure adjacent the rocker outer panel and a second energy absorbing structure adjacent the rocker inner panel.

5. The electric automobile doorsill structure according to claim 4, wherein: the first energy absorbing structure has a gradually increasing cross section in a direction from the rocker outer panel to the rocker inner panel.

6. The electric automobile doorsill structure according to claim 5, wherein: the second energy absorbing structure has substantially equal cross-sections and may also have reinforcing ribs disposed therein.

7. The electric automobile doorsill structure according to claim 6, wherein: the upper support plate is fixed to the upper portion of the second energy absorbing structure through an FDS connecting rivet; the lower support plate is fixed to the lower portion of the second energy absorbing structure by an FDS connection rivet.

8. The electric automobile doorsill structure according to claim 1, wherein: the lower support plate is located in the middle of the lower end of the aluminum threshold reinforcing beam, and the jack reinforcing plates are located on both sides of the lower end of the aluminum threshold reinforcing beam.

9. The electric automobile doorsill structure according to claim 1, wherein: the inner doorsill plate further comprises an upper end face section and a lower end face section, the upper end face section is connected with the first vertical plane section, the lower end face section is connected with the second vertical plane section, an upper connecting end is arranged on the upper end face section, and a lower connecting end is arranged below the lower end face section; the doorsill outer plate comprises an outer plate body section, an upper transition section, a lower transition section, an upper connecting end and a lower connecting end, the upper connecting end of the doorsill outer plate is welded with the upper connecting end of the doorsill inner plate, and the lower connecting end of the doorsill outer plate is welded with the lower connecting end of the doorsill inner plate.

10. The electric automobile doorsill structure according to claim 9, wherein: the front end of the power battery is provided with a connecting part, and the connecting part is fixed with the lower end face section of the inner doorsill plate through a bolt.