CN219277616U

CN219277616U - Front automobile body structure of pure electric automobile and pure electric automobile

Info

Publication number: CN219277616U
Application number: CN202222967506.2U
Authority: CN
Inventors: 丛浩
Original assignee: BAIC Motor Co Ltd
Current assignee: BAIC Motor Co Ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-06-30
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses a front vehicle body structure of a pure electric vehicle and the pure electric vehicle, which comprises the following components: two front side members provided at the front portion of the vehicle body; the front suspension assembly is connected with the front longitudinal beam through a front suspension swing arm; this anterior body structure includes two front longitudinal beams and front suspension subassembly, front suspension subassembly passes through front suspension swing arm lug connection on front longitudinal beam, and the preceding sub vehicle frame in the anterior body structure of traditional car has not been cancelled to preceding sub vehicle frame in the anterior body structure of traditional car, weight reduction has realized lightweight design, the continuation of the journey mileage has been increased, the Z in cabin can reduce to the height simultaneously, the car height further reduces, the front suspension design basis of lying prone has been provided for flat floor low gesture pure electric car, and spare part quantity has been reduced, traditional preceding sub vehicle frame partial shipment station has been reduced, manual work is saved.

Description

Front automobile body structure of pure electric automobile and pure electric automobile

Technical Field

The utility model belongs to the technical field of pure electric vehicles, and particularly relates to a front vehicle body structure of a pure electric vehicle and the pure electric vehicle.

Background

As shown in fig. 1 to 3, a front subframe of a front suspension system of a conventional automobile is a single assembly, and is screwed with a mounting point of a vehicle body through bolts, and each connecting rod and swing arm of the front suspension are connected with the front subframe. Compared with the front vehicle body structure of the traditional vehicle, the size of the cabin driving motor of the pure electric vehicle is far smaller than that of an engine, so that the cabin size of the pure electric vehicle is reduced. For the pure electric vehicle, the lightweight design, the Z-direction height of the engine room and the simplification of the front vehicle body structure are key technical breakthrough directions, and based on the characteristics of the pure electric vehicle, how to realize the technical breakthrough in the directions becomes a difficult problem for the design of the pure electric vehicle.

Disclosure of Invention

The utility model aims to overcome the defects of the traditional front vehicle body structure in the prior art, provides a front vehicle body structure of a pure electric vehicle and the pure electric vehicle, and solves the technical problems of light weight design, reduction of the Z-direction height of a cabin and simplification of the front vehicle body structure of the pure electric vehicle.

In order to achieve the above object, the present utility model provides a front body structure of a pure electric vehicle, comprising:

two front side members provided at the front portion of the vehicle body;

and the front suspension assembly is connected with the front longitudinal beam through a front suspension swing arm.

Optionally, a first avoidance hole is formed in the middle of the front longitudinal beam, and the first avoidance hole is used for avoiding the transmission shaft.

Optionally, the rear ends of the two front longitudinal beams are connected with a first cross beam, and the front ends of the two front longitudinal beams are connected with a second cross beam.

Optionally, the front longitudinal beam includes a lower layer beam and an upper layer beam, and the upper layer beam is disposed on an upper side of the lower layer beam and is integrally formed with the lower layer beam.

Optionally, a first avoidance groove is formed in the lower side of the front longitudinal beam.

Optionally, the stabilizer bar is at least partially positioned in the first avoidance groove.

Optionally, the material of the front side member is an aluminum alloy.

Optionally, the steering system further comprises a steering machine and a steering machine mounting seat, wherein the steering machine mounting seat is arranged on the lower side of the front longitudinal beam, and the steering machine is arranged below the steering machine mounting seat and the second cross beam.

Optionally, a swing arm mounting portion is provided on the underside of the front side member, and the front suspension swing arm is connected with the swing arm mounting portion.

The utility model further provides a pure electric automobile, which comprises the front automobile body structure of the pure electric automobile.

The utility model provides a front vehicle body structure of a pure electric vehicle and the pure electric vehicle, which have the beneficial effects that: this anterior body structure includes two front longitudinal beams and front suspension subassembly, front suspension subassembly passes through front suspension swing arm lug connection on front longitudinal beam, and the preceding sub vehicle frame in the anterior body structure of traditional car has not been cancelled to preceding sub vehicle frame in the anterior body structure of traditional car, weight reduction has realized lightweight design, the continuation of the journey mileage has been increased, the Z in cabin can reduce to the height simultaneously, the car height further reduces, the front suspension design basis of lying prone has been provided for flat floor low gesture pure electric car, and spare part quantity has been reduced, traditional preceding sub vehicle frame partial shipment station has been reduced, manual work is saved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.

Fig. 1 shows a schematic structure of a front suspension system of a conventional automobile.

Fig. 2 and 3 show a schematic view of a front body structure of a conventional automobile.

Fig. 4 shows a three-dimensional schematic view of a front body structure of a pure electric vehicle according to an embodiment of the present utility model.

Fig. 5 shows a schematic view of a bottom view of a front body structure of a pure electric vehicle according to an embodiment of the present utility model.

Fig. 6 shows a three-dimensional structural schematic view of a front side member portion of a front body structure of a pure electric vehicle according to an embodiment of the present utility model.

Fig. 7 shows a schematic side view of a front side member portion of a front body structure of a pure electric vehicle according to an embodiment of the present utility model.

Fig. 8 shows a schematic top view of a front side member portion of a front body structure of a pure electric vehicle according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a front side member; 2. a front suspension assembly; 3. a front suspension swing arm; 4. a first avoidance hole; 5. a first cross beam; 6. a second cross beam; 7. a first avoidance groove; 8. a transmission shaft; 9. a stabilizer bar; 10. a steering gear; 11. a steering gear mounting seat; 12. a swing arm mounting portion; 13. and a front auxiliary frame.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below. While the preferred embodiments of the present utility model are described below, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

As shown in fig. 4 to 8, the present utility model provides a front body structure of a pure electric vehicle, comprising:

two front side members 1 provided at the front of the vehicle body;

front suspension assembly 2, front suspension assembly 2 is connected to front side member 1 through front suspension swing arm 3.

Specifically, the technical problems of light weight design, reduction of the Z-direction height of a cabin and simplification of a front vehicle body structure of the pure electric vehicle are solved; the front body structure of the pure electric vehicle provided by the utility model comprises the two front longitudinal beams 1 and the front suspension assembly, wherein the front suspension assembly is directly connected to the front longitudinal beams 1 through the front suspension swing arm 3, and does not comprise the front auxiliary frame in the front body structure of the traditional vehicle, compared with the front body structure of the traditional vehicle in the prior art shown in fig. 1-3, the front auxiliary frame in the front body structure of the traditional vehicle is omitted, the weight is reduced by about 30kg, the light weight design is realized, the endurance mileage is increased, meanwhile, the Z-direction height of a cabin can be reduced by about 50mm, the vehicle height is further reduced, a low-lying front suspension design foundation is provided for the flat floor low-attitude pure electric vehicle, the number of parts is reduced, the split charging stations of the traditional front auxiliary frame are reduced, and the man-hour is saved.

Optionally, a first avoidance hole 4 is provided in the middle of the front longitudinal beam 1, and the first avoidance hole 4 is used for avoiding the transmission shaft 8.

Specifically, the transmission shaft 8 is arranged in the first avoiding hole 4 in a penetrating way.

Alternatively, the rear ends of the two front side members 1 are connected with a first cross member 5, and the front ends of the two front side members 1 are connected with a second cross member 6.

In particular, the provision of the first cross member 5 and the second cross member 6 can enhance the lateral load carrying capacity of the front vehicle body structure and enhance the overall structural strength of the front vehicle body structure.

Alternatively, the front side member 1 includes a lower layer beam and an upper layer beam provided on an upper side of the lower layer beam and integrally structured with the lower layer beam.

Specifically, the upper layer beam and the lower layer beam of the integrated structure increase the vertical height of the front longitudinal beam 1, and also increase the cross-sectional area of the front longitudinal beam 1, so that the structural strength is improved compared with the front longitudinal beam 1 in the front body structure of the traditional automobile; in this way, even if the front sub-frame in the front body structure of the conventional automobile is eliminated, a sufficient Z-directional load bearing capacity can be provided.

Optionally, the underside of the front side member 1 is provided with a first escape groove 7.

Specifically, the first escape groove 7 is an arc-shaped groove recessed upward from the lower side of the front side member 1.

Optionally, a stabilizer bar 9 is further included, and the stabilizer bar 9 is at least partially located in the first avoidance groove 7.

Specifically, the stabilizer bar 9 is disposed below the front side member 1, and is retracted by the first retraction groove 7, thereby providing an installation space.

Alternatively, the material of the front side member 1 is an aluminum alloy.

Specifically, the front side member 1 made of aluminum alloy material is used to further reduce the weight and improve the weight of the vehicle body while ensuring the structural strength.

Optionally, a steering gear 10 and a steering gear mount 11 are further included, the steering gear mount 11 is provided at the lower side of the front side member 1, and the steering gear 10 is mounted below the steering gear mount 11 and the second cross member 6.

Specifically, the steering gear mounting seat 11 is disposed at the lower side of the front longitudinal beam 1, and may be columnar, and the lower ends of the steering gear mounting seat 11 and the second cross beam 6 may be provided with mounting holes for mounting the steering gear 10 and its accessories.

Alternatively, the lower side of the front side member 1 is provided with a swing arm mounting portion 12, and the front suspension swing arm 3 is connected to the swing arm mounting portion 12.

Specifically, the swing arm mounting portion 12 includes a swing arm mounting surface and a swing arm mounting hole provided at the lower side of the front side member 1, the swing arm mounting hole being provided on the swing arm mounting surface for connection of the front suspension swing arm 3 with the front side member 1.

In summary, the front auxiliary frame in the front body structure of the pure electric vehicle is eliminated, and the front suspension assembly 2 is directly connected to the front longitudinal beam 1 through the front suspension swing arm 3, so that compared with the situation that the front auxiliary frame of the pure electric vehicle is arranged below the floor of the vehicle, the front suspension assembly 2 of the front body structure of the pure electric vehicle is directly connected to the front longitudinal beam 1 through the front suspension swing arm 3, and an integrated structure is formed and basically leveled with the floor of the vehicle, so that tires and wheel centers move upwards, and the vehicle height is reduced. The cross section area of the front longitudinal beam 1 is increased, a reinforcing structure is formed, and sufficient Z-direction bearing capacity can be provided; the front suspension swing arm 3 and the steering gear 10 which are originally connected with the auxiliary frame in the front body structure of the traditional automobile are changed into a front longitudinal beam 1 in the front body structure to be connected, the front longitudinal beam 1 is provided with an avoidance hole structure of a transmission shaft 8 and a stabilizer bar 9, the front suspension wheel edge structure is not changed, and the suspension performance is not affected.

The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.

Claims

1. A front body structure of a pure electric vehicle, characterized by comprising:

two front side members provided at the front portion of the vehicle body;

the front suspension assembly is connected with the front longitudinal beam through a front suspension swing arm;

the rear ends of the two front longitudinal beams are connected with a first cross beam, and the front ends of the two front longitudinal beams are connected with a second cross beam.

2. The front body structure of a pure electric vehicle according to claim 1, wherein a first avoidance hole is provided in a middle portion of the front side member, the first avoidance hole being for avoiding a propeller shaft.

3. The front body structure of a pure electric vehicle according to claim 1, wherein the front side member includes a lower layer beam and an upper layer beam provided on an upper side of the lower layer beam and integrally structured with the lower layer beam.

4. The front body structure of a pure electric vehicle according to claim 1, wherein a first escape groove is provided at an underside of the front side member.

5. The front body structure of a pure electric vehicle of claim 4, further comprising a stabilizer bar at least partially within the first avoidance slot.

6. The front body structure of a pure electric vehicle according to claim 1, wherein the material of the front side member is an aluminum alloy.

7. The front body structure of a pure electric vehicle according to claim 1, further comprising a steering gear and a steering gear mount provided on an underside of the front side member, the steering gear being mounted below the steering gear mount and the second cross member.

8. The front body structure of a pure electric vehicle according to claim 1, wherein a swing arm mounting portion is provided on a lower side of the front side member, and the front suspension swing arm is connected to the swing arm mounting portion.

9. A pure electric vehicle characterized by comprising a front body structure of the pure electric vehicle according to any one of claims 1-8.