CN206885184U - Electric automobile forward engine room framework and electric automobile - Google Patents

Abstract

The utility model provides a front engine compartment frame of an electric vehicle and the electric vehicle. The lower crossbeam of the front floor is arranged under the front end of the vehicle floor, and is fixedly connected with the vehicle floor. , and the longitudinal beam extension plate is fixedly connected with the car floor, the front floor under-beam and the door sill side beam respectively, so as to form a protective frame in front of the battery unit arranged under the car floor, so that the front cabin frame of the electric car has a higher strength , and can disperse the impact force of the collision to the car floor, the lower beam of the front floor and the side beam of the door sill, avoiding the excessive intrusion of the dash panel and the floor during the collision, and directly impacting the battery unit, thus effectively Protect the battery unit, avoid battery unit damage, spontaneous combustion and other phenomena caused by the battery unit being squeezed, and improve the safety of the car.

Description

Electric vehicle front cabin frame and electric vehicle

technical field

The embodiment of the utility model relates to the technical field of automobile engineering, in particular to a front cabin frame of an electric vehicle and the electric vehicle.

Background technique

With the rapid development of the automobile industry, safety, energy saving and environmental protection have become the themes of the development of the automobile industry. To achieve this goal, the development of electric vehicles has become an inevitable trend. However, the main factors restricting the rapid development of electric vehicles are battery cruising range and battery safety issues.

The battery unit of an electric vehicle usually accounts for about one-third of the curb weight of the electric vehicle, and is generally installed at the bottom of the electric vehicle. However, most of the existing electric vehicles still use the front cabin frame of the traditional vehicle. The amount of intrusion into the front wall is large, and the battery unit is easily squeezed, causing damage to the battery unit, spontaneous combustion, etc., so that the integrity and safety performance of the battery unit cannot be guaranteed.

Utility model content

The utility model provides a front cabin frame of an electric vehicle and the electric vehicle, which can effectively protect battery units in collision accidents, avoid battery unit damage, spontaneous combustion and other phenomena caused by the battery unit being squeezed, and improve safety.

One aspect of the utility model provides a front cabin frame of an electric vehicle, including a longitudinal beam, a front panel, a floor and a door sill side beam, the longitudinal beam, the front panel and the floor are fixedly connected, The door sill side beams are fixedly arranged on the left and right sides of the automobile floor, and the battery unit is arranged under the automobile floor, further comprising:

The lower beam of the front floor is arranged under the front end of the automobile floor and is fixedly connected with the automobile floor;

The longitudinal beam extension plate fixedly connected with the end of the longitudinal beam extends from the end of the longitudinal beam to the door sill side beam, and is respectively connected with the vehicle floor, the front underfloor cross member and the door sill side beam Fixed connection.

Further, the first end of the longitudinal beam extension plate is U-shaped, inserted and fixed at the end of the longitudinal beam;

The second end of the longitudinal beam extension plate is fixedly connected to the door sill side beam.

Further, an arc-shaped structure is formed between the first end of the longitudinal beam extension plate and the second end of the longitudinal beam extension plate, and the arc-shaped structure makes the longitudinal beam extension plate extend from the end of the longitudinal beam to the The smooth transition of the sill side beam.

Further, the front underfloor crossbeam includes a left front underfloor crossbeam, a right front underfloor crossbeam and an underfloor channel reinforcement crossbeam;

The left front underfloor crossbeam and the right front underfloor crossbeam are respectively fixed on the left side and the right side below the front end of the automobile floor;

The under-floor channel reinforcing beam connects the left front under-floor under-beam and the right front under-floor under-beam, wherein the under-floor channel reinforcing beam matches the shape of the channel provided on the automobile floor so as to avoid the interference with the transmission below the channel.

Further, the front cabin frame of the electric vehicle also includes,

The reinforced crossbeam on the dashboard is arranged in front of the automobile dashboard on the left and right sides of the longitudinal beam, and the upper part of the reinforced crossbeam on the dashboard is fixedly connected with the described automobile dashboard. One end of the reinforced crossbeam on the enclosure plate close to the A-pillar of the automobile is fixedly connected with the inner panel of the A-pillar of the automobile, and the lower part of the reinforced crossbeam on the front enclosure plate is fixedly connected with the automobile floor.

Further, the front cabin frame of the electric vehicle also includes,

The lower reinforcement crossbeam of the dash panel is arranged below the dash panel of the automobile and above the extension plate of the longitudinal beam, and the reinforcement crossbeam of the dash panel extends from the dash panel to the side beam , the lower reinforcing beam of the dash panel is fixedly connected with the lower part of the reinforcing beam of the dash panel and the automobile floor, and the lower part of the reinforcing beam of the lower dash panel is fixedly connected with the door sill side beam.

Further, the fixed connection is welding.

Further, the longitudinal beam extension plate and the front under-floor cross member are plate stamping components.

Further, the reinforcement beam on the dashboard and the reinforcement beam under the dashboard are plate stamping components.

Another aspect of the present utility model is to provide an electric vehicle, including the above-mentioned front cabin frame of the electric vehicle.

The front cabin frame of the electric vehicle and the electric vehicle provided by the utility model are provided with a lower beam under the front floor under the front end of the vehicle floor, and are fixedly connected with the vehicle floor. And the longitudinal beam extension plate is fixedly connected with the automobile floor, the front underfloor beam and the door sill side beam respectively, so as to form a protective frame in front of the battery unit arranged under the automobile floor, so that the front cabin frame of the electric vehicle has higher strength, And it can disperse the impact force of the collision to the car floor, the lower beam of the front floor and the side beam of the door sill, avoiding the excessive intrusion of the cowl and the floor during the collision, and directly impacting the battery unit, so as to effectively protect the car in the collision accident The battery unit can avoid the battery unit damage and spontaneous combustion caused by the battery unit being squeezed, and improve the safety of the car.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific implementation or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is the bottom view of the front cabin frame of the electric vehicle that the utility model embodiment provides;

Fig. 2 is a top view of the front cabin frame of the electric vehicle shown in Fig. 1;

FIG. 3 is a perspective structural diagram of a part of the structure in the front cabin frame of the electric vehicle shown in FIG. 1 .

detailed description

It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it should be understood that the terms "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer" and so on are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or It should not be construed as limiting the invention by implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

Fig. 1 is the bottom view of the front cabin frame of the electric vehicle provided by the utility model embodiment; Fig. 2 is the top view of the front cabin frame of the electric vehicle shown in Fig. 1; Fig. 3 is the middle part of the front cabin frame of the electric vehicle shown in Fig. 1 Schematic diagram of the three-dimensional structure of the structure. As shown in Figures 1-3, the present embodiment provides a front cabin frame of an electric vehicle, including a longitudinal beam 500, a front panel 600, a floor panel 700 and a door sill side beam 800, a longitudinal beam 500, a front panel 600 and The car floor 700 is fixedly connected, the door sill side beams 800 are fixedly arranged on the left and right sides of the car floor 700 , the battery unit 900 is arranged under the car floor 700 , and the front cabin frame of the electric car also includes a longitudinal beam extension plate 100 and a front floor lower beam 200 .

Wherein, the lower crossbeam 200 under the front floor is arranged under the front end of the automobile floor 700 and is fixedly connected with the automobile floor 700; And respectively fixedly connected with the automobile floor 700 , the lower beam 200 of the front floor and the side beam 800 of the threshold.

The longitudinal beam 500 , the front wall panel 600 , the floor panel 700 and the sill side beam 800 in this embodiment can be the existing structure and connection relationship in the frame of the front cabin of a traditional automobile, and will not be repeated in this embodiment. It should be noted that the battery unit 900 is arranged under the car floor 700, and the door sill side beams 800 are fixedly arranged on the left and right sides of the car floor 700, which can protect the side of the battery unit and reduce the impact on the battery unit during a side collision.

The front underfloor crossbeam 200 is arranged below the front end of the automobile floor 700, that is, in front of the battery unit 900. The front underfloor crossbeam 200 is fixedly connected to the automobile floor 700, and the strength of the front end of the automobile floor 700 is enhanced through the front underfloor crossbeam 200 to avoid collisions. When the floor is directly collapsed and deformed, the impact force directly acts on the battery unit. Specifically, as shown in FIG. 3 , the front under-floor crossbeam 200 may include a left front under-floor crossbeam 210, a right front under-floor crossbeam 220, and a floor channel reinforcement crossbeam 230; The lower left and right sides of the front end of the automobile floor 700; the under-floor crossbeam 230 connects the left front under-floor under-beam 210 and the right front under-floor under-beam 220, wherein the under-floor passage under-floor crossbeam 230 has the same shape as the passageway provided on the automobile floor 700 Matching to avoid interference with the drive located below the channel.

The longitudinal beam extension plate 100 is fixedly connected to the end of the longitudinal beam 500 , extends from the end of the longitudinal beam 500 to the door sill side beam 800 , and is fixedly connected to the automobile floor 700 , the front floor lower beam 200 and the door sill side beam 800 respectively. Through the longitudinal beam extension plate 100, the impact force of the collision can be dispersed to the automobile floor 700, the front underfloor cross member 200 and the door sill side beam 800, so that after the longitudinal beam 500 is greatly deformed in the collision, the dash panel and The intrusion of the floor is too large and directly hits the battery unit. Specifically, the first end of the longitudinal beam extension plate 100 is U-shaped, inserted and fixed at the end of the longitudinal beam 500 ; the second end of the longitudinal beam extension plate 100 is fixedly connected with the door sill edge beam 800 . That is, the first end of the longitudinal beam extension plate 100 is inserted into the end opening of the longitudinal beam 500 , and is fixed with the end of the longitudinal beam 500 by welding or other connection methods. Of course, the longitudinal beam extension plate 100 can also be in other shapes.

More specifically, an arc-shaped structure is formed between the first end of the longitudinal beam extension plate 100 and the second end of the longitudinal beam extension plate 100, and the longitudinal beam extension plate 100 is formed from the end of the longitudinal beam 500 to the door sill edge beam 800 through the arc-shaped structure. Smooth transitions. Through the smooth transition of the arc structure, that is, the longitudinal beam extension plate 100 and the front floor lower beam 200 form a "herringbone" structure, so that the impact force on the longitudinal beam 500 can be more evenly transmitted to the front floor lower beam 200 and the threshold The side beams are 800, and the structure has high strength and is not easy to deform. A cage-like protective frame is formed in front of the battery unit to reduce the risk of the battery unit being impacted.

In the front cabin frame of the electric vehicle provided in this embodiment, the front underfloor beam 200 is fixedly connected to the vehicle floor 700 by setting the front underfloor beam 200 below the front end of the vehicle floor 700, and the longitudinal beam extension plate 100 is set to extend from the end of the longitudinal beam 500 to the threshold edge Beam 800, and the longitudinal beam extension plate 100 is fixedly connected with the car floor 700, the front underfloor cross member 200 and the door sill side beam 800 respectively, so as to form a protective frame in front of the battery unit arranged under the car floor 700, so that the front of the electric car The cabin frame has high strength, and can disperse the impact force of the collision to the car floor 700, the front underfloor crossbeam 200, and the door sill side beam 800, avoiding the excessive intrusion of the dash panel and the floor during the collision, which directly impacts the The battery unit, so as to effectively protect the battery unit in a collision accident, avoid battery unit damage and spontaneous combustion caused by the battery unit being squeezed, and improve the safety of the car.

Further, the front engine compartment frame of the electric vehicle also includes a reinforced crossbeam 300 on the front wall, which is arranged in front of the front wall 600 on the left and right sides of the longitudinal beam 500, and the upper part of the reinforced crossbeam 300 on the front wall is connected to the front wall of the automobile. 600 is fixedly connected, one end of the reinforced crossbeam 300 on the front wall near the A-pillar of the automobile is fixedly connected with the inner panel of the A-pillar of the automobile, and the lower part of the reinforced crossbeam 300 on the dashmeal is fixedly connected with the floor 700 of the automobile.

In this embodiment, a reinforcement crossbeam 300 on the dash panel is respectively arranged in front of the dash panel 600 on the left and right sides of the longitudinal beam 500 to enhance the strength of the dash panel 600 and transmit the impact force of the collision to the automobile. The A-pillar further avoids excessive intrusion of the dash panel during a collision, and protects the battery unit more effectively. It should be noted that since there are other components arranged directly in front of the dash panel 600 , the dash panel reinforcing beam 300 is only provided on the left and right sides in front of the dash panel.

Further, the front cabin frame of the electric vehicle also includes a dash lower reinforcing crossbeam 400, which is arranged below the automobile dash 600 and above the longitudinal beam extension plate 100, and the dash lower reinforcing crossbeam 400 is formed by the automobile dash 600. Extending to the door sill side beam 800 , the lower reinforcement beam 400 of the dash panel is fixedly connected with the lower part of the reinforcement beam 300 on the dash panel and the automobile floor 700 , and the lower part of the reinforcement beam 400 of the dash panel is fixedly connected with the door sill side beam 800 .

In this embodiment, the dash panel reinforcement crossbeam 400 is arranged under the dash panel 600 of the automobile, and the dash panel reinforcement crossbeam 400 connects the dash panel reinforcement crossbeam 300 with the automobile floor 700 and the door sill side beam 800 fixedly. Further disperse the impact force suffered by the front panel 600 of the automobile, and form a cage-like protective frame in front of the battery unit, reducing the risk of the battery unit being impacted and protecting the battery unit more effectively.

In the above embodiments, the fixed connection may be welding. Specifically, it can be spot welding or laser welding. Among them, the spot welding technology is relatively mature, the process is simple, and the cost is low. The structure is connected by welding points to realize the transmission of collision impact force; laser welding is adopted, and the weld seam is smooth and strong. It can further improve the strength and collision safety of the front cabin frame of the electric vehicle, and can better protect the battery unit, but its cost is relatively high. Of course, other connection methods may also be used for the fixed connection in the above embodiments, such as bolt connection or integral molding.

Further, the longitudinal beam extension plate 100 and the front floor sub-beam 200 in the above embodiment can be plate stamping components, which can be produced by cold rolling process, the process is simple, and the cost is low. By stamping the plate into a specific shape such as flanging, Ribs and the like are used to strengthen the strength of the components; further, the dash panel reinforcement beam 300 and the dash panel lower reinforcement beam 400 in the above embodiment may also be plate stamping components. Of course, the above components can also be made of hollow profiles or other materials.

Another embodiment of the utility model provides an electric vehicle, including the front cabin frame of the electric vehicle in the above embodiment.

In the electric vehicle provided in this embodiment, the front underfloor beam is fixedly connected to the automobile floor under the front end. The car floor, the front floor sub-beam and the door sill side beam are fixedly connected to form a protective frame in front of the battery unit arranged under the car floor, so that the front cabin frame of the electric car has high strength and can disperse the impact force of the collision to On the floor of the car, the lower beam of the front floor and the side beam of the door sill, it avoids the excessive intrusion of the dash panel and the floor during the collision, and directly impacts the battery unit, so as to effectively protect the battery unit in the collision accident and prevent the battery unit from being squeezed The battery cell damage and spontaneous combustion caused by high voltage can be prevented, and the safety of the car can be improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (10)

1. A front cabin frame of an electric vehicle, comprising a longitudinal beam, a front panel, an automobile floor and a threshold side beam, the longitudinal beam, the front panel and the vehicle floor are fixedly connected, and the threshold side beam Fixedly arranged on the left and right sides of the car floor, the battery unit is arranged under the car floor, and it is characterized in that it also includes, The lower beam of the front floor is arranged under the front end of the automobile floor and is fixedly connected with the automobile floor; The longitudinal beam extension plate fixedly connected with the end of the longitudinal beam extends from the end of the longitudinal beam to the door sill side beam, and is respectively connected with the vehicle floor, the front underfloor cross member and the door sill side beam Fixed connection. 2. The front cabin frame of an electric vehicle according to claim 1, wherein: The first end of the longitudinal beam extension plate is U-shaped, inserted and fixed at the end of the longitudinal beam; The second end of the longitudinal beam extension plate is fixedly connected to the door sill side beam. 3. The front cabin frame of an electric vehicle according to claim 2, wherein: There is an arc structure between the first end of the longitudinal beam extension plate and the second end of the longitudinal beam extension plate, and the arc structure makes the longitudinal beam extension plate extend from the end of the longitudinal beam to the threshold edge Beam transitions smoothly. 4. The front cabin frame of an electric vehicle according to claim 1, wherein: The front underfloor crossbeams include left front underfloor crossbeams, right front underfloor crossbeams and underfloor channel reinforcement crossbeams; The left front underfloor crossbeam and the right front underfloor crossbeam are respectively fixed on the left side and the right side below the front end of the automobile floor; The under-floor channel reinforcing beam connects the left front under-floor under-beam and the right front under-floor under-beam, wherein the under-floor channel reinforcing beam matches the shape of the channel provided on the automobile floor so as to avoid the interference with the transmission below the channel. 5. The front cabin frame of an electric vehicle according to any one of claims 1-4, further comprising: The reinforced crossbeam on the dashboard is arranged in front of the automobile dashboard on the left and right sides of the longitudinal beam, and the upper part of the reinforced crossbeam on the dashboard is fixedly connected with the described automobile dashboard. One end of the reinforced crossbeam on the enclosure plate close to the A-pillar of the automobile is fixedly connected with the inner panel of the A-pillar of the automobile, and the lower part of the reinforced crossbeam on the front enclosure plate is fixedly connected with the automobile floor. 6. The front cabin frame of an electric vehicle according to claim 5, further comprising: The lower reinforcement crossbeam of the dash panel is arranged below the dash panel of the automobile and above the extension plate of the longitudinal beam, and the reinforcement crossbeam of the dash panel extends from the dash panel to the side beam , the lower reinforcing beam of the dash panel is fixedly connected with the lower part of the reinforcing beam of the dash panel and the automobile floor, and the lower part of the reinforcing beam of the lower dash panel is fixedly connected with the door sill side beam. 7. The front cabin frame of an electric vehicle according to claim 1, wherein the fixed connection is welding. 8 . The front engine room frame of an electric vehicle according to claim 1 , wherein the longitudinal beam extension plate and the front underfloor cross member are plate stamping components. 9 . 9 . The front cabin frame of an electric vehicle according to claim 6 , characterized in that, the dash panel reinforcing beam and the dash panel lower reinforcing beam are plate stamping components. 10 . 10. An electric vehicle, comprising the front cabin frame of the electric vehicle according to any one of claims 1-9.