CN201347134Y - Floor structure of electric vehicle - Google Patents

Abstract

The utility model is applicable to the field of auto parts, and provides a floor structure of an electric vehicle, which includes an inner left large longitudinal beam, an inner right large longitudinal beam, a front mounting beam and a rear mounting beam, the inner left large longitudinal beam, the front The installation beam, the inner right longitudinal beam and the rear installation beam are sequentially connected to form a frame structure in which the battery tray can be installed, and at least one upwardly protruding reinforcement beam is provided above the frame structure, and the reinforcement beam Connect the inner left large longitudinal member and the inner right large longitudinal member or connect the front installation cross member and the rear installation cross member. After adopting the above technical scheme, the battery tray used for installing the battery assembly can be easily installed on the frame composed of the inner left large longitudinal beam, the inner right large longitudinal beam, the front installation beam, the rear installation beam and the reinforcement beam. In the prior art, because the floor structure does not consider installing the battery tray, it is difficult to install the battery tray on the existing floor.

Description

A floor structure of an electric vehicle

technical field

The utility model belongs to the field of auto parts, in particular to a floor structure for electric vehicles.

Background technique

At present, the body floor structure is generally composed of a main floor (also known as a front floor) assembly and a rear floor assembly. According to the function of the components, it can be divided into floor panels and floor frames. The floor frame generally adopts a cage-type energy-absorbing structure, that is, an "H"-shaped floor structure is used to form a "3H" structure of the body. However, this structure cannot be used in electric vehicles for two reasons: 1. There are generally many beams in the middle of this frame structure, and these beams are at the same or approximately the same level as the frame structure, thus seriously hindering the power battery. 2. The frame structure is low from the ground, so that the battery assembly cannot be installed under the frame structure. Generally, the front part of the floor is relatively flat and used to place the seat, the rear part of the middle is raised upwards due to the need to install the fuel tank, and the rear part is sunken downwards due to the need to place the spare tire, which limits the floor. The structure cannot be fitted with a battery assembly. To sum up, because the existing floor does not consider adding a power battery to the lower part, the layout of the skeleton structure is relatively unreasonable, and the strength and space of the floor are insufficient, making it impossible to install a power battery at all.

Utility model content

The purpose of the utility model is to provide a floor structure of an electric vehicle, aiming to solve the problem that the battery assembly is difficult to install on the existing vehicle because the floor of the existing vehicle does not take into account the battery assembly.

A floor structure of an electric vehicle, comprising an inner left large longitudinal beam, an inner right large longitudinal beam, a front mounting beam and a rear mounting beam, the inner left large longitudinal beam, the front mounting beam, the inner right large longitudinal beam and the rear mounting beam connected in sequence to form a frame structure in which battery trays can be installed, and at least one upwardly protruding reinforcement beam is arranged above the frame structure, and the reinforcement beam connects the inner left large longitudinal beam and the inner right large longitudinal beam Or connect the front and rear mounting beams.

A floor structure for an electric vehicle, further comprising an outer right large longitudinal beam and an outer left large longitudinal beam respectively connected to the front mounting beam and the rear mounting beam, the outer left large longitudinal beam and the outer right large longitudinal beam are respectively located on the inner left Outer side of the large stringer and the inside right large stringer.

A floor structure of an electric vehicle, wherein the structural rigidity of the outer right large longitudinal beam and the outer left large longitudinal beam is smaller than the structural rigidity of the inner left large longitudinal beam and the inner right large longitudinal beam.

A floor structure of an electric vehicle, the reinforcing beams include a first reinforcing beam, a second reinforcing beam and a third reinforcing beam parallel to the front mounting beam and the rear mounting beam and perpendicular to the front mounting beam and the rear mounting beam The small longitudinal beam, the first reinforcing beam, the second reinforcing beam and the third reinforcing beam connect the inner left large longitudinal beam, the inner right large longitudinal beam, the outer left large longitudinal beam and the outer large longitudinal beam, and the small longitudinal beam Connect the front mounting beam, the first reinforcing beam, the second reinforcing beam and the third reinforcing beam.

A floor structure of an electric vehicle, the first reinforcing beam, the second reinforcing beam and the third reinforcing beam are all provided with installation holes for installing vehicle seats.

A floor structure of an electric vehicle, the inner left large longitudinal beam, the inner right large longitudinal beam, the front installation crossbeam and the rear installation crossbeam are all provided with several installation holes for installing battery trays.

A floor structure of an electric vehicle, further provided with a support plate for connecting the outer left large longitudinal beam and the inner left large longitudinal beam and the outer right large longitudinal beam and the inner right large longitudinal beam, the support plate is located and the inside left large stringer and between the outside right large stringer and the inside right large stringer.

Due to the adoption of the above technical scheme, the battery tray used for installing the battery assembly can be easily installed on the inner left longitudinal beam, the inner right longitudinal beam, the front installation beam and the rear installation beam, which solves the problems caused by the floor in the prior art. The structure does not take into account the installation of the battery tray, which makes it difficult to install the battery tray on the existing floor. The reinforcing beam above the frame structure can also enhance the strength of the entire frame. At the same time, the floor structure can be well adapted to the existing vehicle body manufacturing methods, and can facilitate the manufacture of automobiles.

On the basis of the above technical solutions, part of the space in the passenger compartment can also be fully utilized, and a first reinforcing beam, a second reinforcing beam, a third reinforcing beam and a small longitudinal beam are arranged, wherein the first reinforcing beam, the second reinforcing beam , The third reinforcing beam and the small longitudinal beam are located above the frame structure and protrude upwards, so that the strength of the floor is strengthened without affecting the installation of the battery assembly. In addition, the first reinforcing beam, the second reinforcing beam, and the third reinforcing beam can be used as installation parts of the seat, making full use of the space of the vehicle.

Description of drawings

Fig. 1 is a schematic top view of the electric vehicle floor structure provided by Embodiment 1 of the present utility model.

Fig. 2 is a schematic top view of the electric vehicle floor structure provided by Embodiment 2 of the present invention.

Fig. 3 is a schematic top view of the electric vehicle floor structure provided by Embodiment 3 of the present invention.

Fig. 4 is a three-dimensional schematic view of the electric vehicle floor structure provided by Embodiment 3 of the present invention.

Fig. 5 is a schematic front view of the electric vehicle floor structure provided by Embodiment 3 of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Fig. 1, the floor structure of a kind of electric vehicle of the present utility model, comprises inner left large longitudinal beam 10, inner right large longitudinal beam 11, front installation crossbeam 20 and rear installation crossbeam 21, described inside left large longitudinal beam 10, The front mounting beam 20, the inner right large longitudinal beam 11 and the rear mounting beam 21 are sequentially connected by welding to form a square frame structure for installing a battery tray (not shown in the figure). A first reinforcement beam 40 is also provided, and the first reinforcement beam 40 connects the inner left large longitudinal beam 10 and the inner right large longitudinal beam 11 in the Y-axis direction of the floor structure above the frame structure and protrudes upwards. The front installation beam 20 and the rear installation beam 21 can be connected in the X-axis direction of the floor structure and protrude upward, leaving enough space for the battery assembly to be installed on the battery tray. The frame structure is provided with several tray installation holes 5 for installing the battery tray, and the battery tray is placed under the floor structure of the electric vehicle, and is installed on the tray installation holes 5 with fixing parts. It should be noted that the height of the frame structure from the ground is greater than that of the common floor structure, so that there is enough space under the frame structure to install the battery tray. A power battery assembly (not shown in the figure) is installed on the battery tray, and the power battery assembly can provide power for the electric vehicle. Above is embodiment 1 of the present utility model.

Example 2

Please refer to Fig. 2, on the electric vehicle floor structure described in embodiment 1, an outer left girder 30 and an outer right girder 31 are installed. On the outside of the inside right large longitudinal beam 11, the front mounting beam 20 and the rear mounting beam 21 fix the outside left side beam 30 and the outside right side beam 31 on the outside of the inside left large side beam 10 and the inside right large side beam 11. In this embodiment, there is also a support plate 6 for connecting the outside left girder 30, the outside right girder 31, the inside left large longitudinal beam 10, and the inside right large longitudinal beam 11. The support plate 6 can make the outside left girder 30, The connection between the outer right main beam 31 and the inner left large longitudinal beam 10 and the inner right large longitudinal beam 11 is more firm.

The stiffness of the outside left frame 30 and the outside right frame 31 is lower than that of the inside left side beam 10 and the inside right side beam 11. Deformation and bending can better absorb the energy of external shocks and ensure the safety of the entire vehicle. In addition, the outer left girder 30 and the outer right girder 31 also function as the inner panel of the sill in the floor structure of the general vehicle body, and together with the outer panel of the sill of the side wall constitute one of the skeletons of the vehicle body.

Example 3

Referring to FIG. 3 , FIG. 4 and FIG. 5 , a first reinforcing beam 40 , a second reinforcing beam 41 , a third reinforcing beam 42 and a small longitudinal beam 43 are installed on the electric vehicle floor structure described in Embodiment 2. The first reinforcement beam 40 , the second reinforcement beam 41 and the third reinforcement beam 42 are parallel to the front installation beam 20 and the rear installation beam 21 , respectively connecting the outer left frame 30 , the outer right frame 31 and the inner left large longitudinal beam 10 1. The inner right large longitudinal beam 11 strengthens the strength of the entire floor structure and improves the torsional rigidity and bending rigidity of the floor structure and the battery tray installed on the floor structure. The small longitudinal beam 43 is perpendicular to the front installation beam 20 and the rear installation beam 21, and it connects the installation beam 21, the first reinforcement beam 40, the second reinforcement beam 41 and the third reinforcement beam 42 to enhance the strength of the floor structure.

Referring to Fig. 4, the first reinforcement beam 40, the second reinforcement beam 41, the third reinforcement beam 42 and the small longitudinal beam 43 are all installed above the frame structure described in Embodiment 2 and protrude upwards, so that the installation structure, It will neither hinder the installation of the battery tray, but also leave enough space for the installation of the battery tray. At the same time, it is horizontally installed on the Compared with the frame structure, its structural strength is higher.

Please refer to Fig. 4, the outer left girder 30, the outer right girder 31, the inner left longitudinal girder 10, the inner right girder 11 pass through the front installation beam 20, the first reinforcing beam 40, the second reinforcing beam 41 and the third reinforcing beam 42 are connected together, which greatly increases the strength and stability of the entire car floor structure. When a car side collision occurs, the sill frame composed of the outer left girder 30 or the outer right girder 31 collapses first, absorbing the damage caused by the collision. energy, while the inner left large longitudinal beam 10 and the inner right large longitudinal beam 11 with higher rigidity play a supporting role in the installation structure of the power battery assembly and the passenger compartment, enhancing the safety and stability of the entire vehicle.

Referring to Fig. 3, the small longitudinal beam 43 is also provided with the battery tray installation hole 5, and the middle part of the battery tray can also be installed on the installation hole of the small longitudinal beam 43 with fasteners, so that the battery tray is prevented from being only installed on the four sides. The two sides are connected with the inner left large longitudinal beam 10, the inner right large longitudinal beam 11, the front mounting beam 20 and the rear mounting beam 21 so as to cause the bending deformation caused by excessive force in the middle of the battery tray. At the same time, the load of the power battery assembly installed on the battery tray can also be evenly distributed to the floor structure.

Referring to Fig. 3, the first reinforcing beam 40, the second reinforcing beam 41 and the third reinforcing beam 42 are provided with car seat mounting holes 7 to ensure that the seat is installed on the vehicle body floor through the seat mounting holes 7, It enhances the stability of car seats and improves the safety of passengers in car collisions.

Please refer to Fig. 4 and Fig. 5, the described outer left large longitudinal beam 30, outer right large longitudinal beam 31 are at the same horizontal position as the floor panel (not shown in the figure), while the inner left large longitudinal beam 10, the inner right large longitudinal beam The longitudinal beam 11 is located at the lower part of the floor panel close to the ground, and the front installation beam 20 and the rear installation beam 21 are also located at the lower part of the floor panel.

Referring to Fig. 4 and Fig. 5, the small longitudinal beam 43, the first reinforcing beam 40, the second reinforcing beam 41, and the third reinforcing beam 42 protrude toward the interior of the passenger compartment of the car relative to the battery tray, and are located on the upper part of the floor panel. The space under the seat is increased to increase the layout space of the battery assembly, and at the same time it is easier to ensure the ground clearance of the vehicle.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1, a kind of floor panel structure of battery-driven car, it is characterized in that: comprise an inboard left side longeron, inboard right big longeron, preceding installation crossbeam and back installation crossbeam greatly, the big longeron in a described inboard left side, preceding installation crossbeam, inboard right big longeron and back are installed crossbeam and are connected successively, form the frame structure that battery tray can be installed, be provided with the strength beam that at least one raises up above described frame structure, described strength beam connects the big longeron in a left side, inboard and with inboard right longeron greatly or before being connected crossbeam and back installation crossbeam is installed.

2, the floor panel structure of a kind of battery-driven car as claimed in claim 1, it is characterized in that: also comprise respectively and with preceding installation crossbeam and back right big longeron in the crossbeam bonded assembly outside and the big longeron of left outer are installed, the right big longeron in the big longeron of described left outer and the outside lays respectively at the outside of big longeron in an inboard left side and inboard right big longeron.

3, the floor panel structure of a kind of battery-driven car as claimed in claim 2 is characterized in that: the rigidity of structure of right big longeron in the described outside and the big longeron of left outer is less than the rigidity of structure of big longeron in an inboard left side and inboard right big longeron.

4, the floor panel structure of a kind of battery-driven car as claimed in claim 1 or 2, it is characterized in that: described strength beam comprises with preceding installation crossbeam and back to be installed first strength beam, second strength beam and the 3rd strength beam that crossbeam is parallel to each other and with preceding installation crossbeam and back the orthogonal stringer of crossbeam is installed, described first strength beam, second strength beam and the 3rd strength beam connect the big longeron in an inboard left side, inboard right big longeron, the big longeron of the big longeron of left outer and the outside, before described stringer connects crossbeam, first strength beam, second strength beam and the 3rd strength beam are installed.

5, the floor panel structure of a kind of battery-driven car as claimed in claim 4 is characterized in that: described first strength beam, second strength beam and the 3rd strength beam are equipped with the mounting hole that is used for the mounting vehicle seat.

6, the floor panel structure of a kind of battery-driven car as claimed in claim 1 is characterized in that: the big longeron in a described inboard left side, inboard right big longeron, preceding installation crossbeam and back are installed crossbeam and are equipped with the mounting hole that several are used to install battery tray.

7, the floor panel structure of a kind of battery-driven car as claimed in claim 2, it is characterized in that: also be provided with the stay bearing plate that is used to connect right big longeron of the big longeron of a big longeron of left outer and an inboard left side and the outside and inboard right big longeron, described stay bearing plate is between right big longeron of the big longeron of a big longeron of left outer and an inboard left side and the outside and inboard right big longeron.

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