CN202783434U - Floor board underneath power battery fixed support connecting structure - Google Patents

Abstract

The utility model discloses a floor board underneath power battery fixed support connecting structure. A front floor board frame comprises a first power battery front fixed support and a second power battery front fixed support which are respectively arranged at two sides of a front floor board. The back ends of the first power battery front fixed support and the second power battery front fixed support are respectively connected with two ends of the front side of a floor board beam inner board. A back floor board frame comprises a first power battery back fixed support and a second power battery back fixed support which are respectively arranged at two sides of a back floor board. The front ends of the first power battery back fixed support and the second power battery back fixed support are respectively connected with two ends of the back side of the floor board beam inner board. According to the floor board underneath power battery fixed support connecting structure, the power battery front fixed supports and the power battery back fixed supports are integrated with the floor board frames so that battery fixed point intensity is high, automobile body properties are enhanced and the structure is greatly beneficial for improving bending rigidity and torsional rigidity.

Description

Power battery fixing bracket connection structure under the floor

technical field

The utility model relates to an automobile floor, in particular to a power battery fixing support connection structure under the floor.

Background technique

The power battery of pure electric vehicles is arranged under the floor due to its large size and heavy weight. This requires major changes to the existing floor structure, and the design of the floor structure is relatively difficult. For a load-bearing body, the floor is the main structural component, and the floor is required to have sufficient structural strength. Moreover, the structural design of the battery fixing point is more difficult.

Therefore, how to design a battery fixing bracket that is simple and easy to meet the requirements of function and strength has become an urgent problem to be overcome.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a power battery fixing support connection structure under the floor.

In order to achieve the above purpose, the power battery fixing bracket connection structure under the floor designed by the utility model includes the front floor, the rear floor, the front floor frame supporting the front floor, the rear floor frame supporting the rear floor, and the power battery installed under the front and rear floors. The front end of the rear floor is provided with a floor crossbeam inner plate, and the front floor frame includes a first power battery front fixing bracket and a second power battery front fixing bracket respectively arranged on both sides of the front floor, and the first power battery The rear ends of the front fixing bracket and the front fixing bracket of the second power battery are respectively connected with the front two ends of the inner panel of the floor beam,

The rear floor frame includes a first power battery rear fixing bracket and a second power battery rear fixing bracket respectively arranged on both sides of the rear floor, and the front ends of the first power battery rear fixing bracket and the second power battery rear fixing bracket are respectively Connect with both ends of the rear side of the inner panel of the floor beam.

In the above solution, a first front floor side beam and a second front floor side beam are arranged on the outer sides of the first power battery front fixing bracket and the second power battery front fixing bracket respectively, and the two sides of the floor beam inner plate The ends are respectively connected with the first front floor side stringer and the second front floor side stringer.

In the above solution, the front end side of the first power battery rear fixing bracket is connected to the inner side of the first front floor side beam, and the front end side of the second power battery rear fixing bracket is connected to the second front floor side The inside edge of the stringer is connected.

In the above solution, brackets for installing the power battery are provided on both sides of the bottom of the power battery, and a plurality of lifting lugs connected to the floor are provided on the bracket, and the front ends of the bracket are respectively connected to the first power battery through the lifting lugs. The front fixing bracket and the second power battery front fixing bracket are fixed, and the rear ends of the bracket are respectively fixed with the first power battery rear fixing bracket and the second power battery rear fixing bracket through lifting lugs.

Specifically, the first power battery front fixing bracket and the second power battery front fixing bracket are provided with a first nut plate and a first connecting nut fixedly connected with the lifting lug, and the first power battery rear fixing bracket A second nut plate and a second connecting nut fixedly connected to the lifting lug are arranged on the rear fixing bracket of the second power battery.

In the above scheme, the front fixing bracket of the first power battery and the front fixing bracket of the second power battery are connected with the width of the front floor, and the front sections of the rear fixing bracket of the first power battery and the rear fixing bracket of the second power battery are connected with the rear floor format connection.

The beneficial effect of the utility model is that: the front and rear fixing brackets of the power battery are integrated with the floor skeleton beam, which has higher battery fixing point strength, and can enhance the performance of the vehicle body, and greatly improves the bending stiffness and torsional stiffness. benefits. After trial production and trial assembly, the utility model has sufficient overall strength and high rigidity of the vehicle body, and can fully meet the fixing requirements of the electric vehicle power battery.

Description of drawings

Figure 1 is a schematic diagram of the installation structure of the power battery.

Figure 2 is a schematic diagram of the connection structure of the power battery fixing bracket under the floor.

Fig. 3 is a schematic structural diagram of the front and rear fixing brackets of the power battery in Fig. 2 .

Fig. 4 is a structural schematic diagram of the front and rear floor frames in Fig. 2 .

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

The power battery fixing bracket connection structure under the floor shown in Figures 1 and 2 includes a front floor 1, a rear floor 4, a front floor frame 5 supporting the front floor 1, a rear floor frame 3 supporting the rear floor 4, and a frame set under the front and rear floors. The front end of the power battery 2 and the rear floor 4 is provided with a floor beam inner plate 6 .

As shown in Figure 4, the front floor frame 5 includes the first power battery front fixing bracket 5.1 and the second power battery front fixing bracket 5.2 respectively arranged on both sides of the front floor 1, the first power battery front fixing bracket 5.1 and the second power battery The rear ends of the front fixing brackets 5.2 are respectively connected with the front two ends of the floor beam inner plate 6. The outer sides of the first power battery front fixing bracket 5.1 and the second power battery front fixing bracket 5.2 are respectively provided with a first front floor side beam 7 and a second front floor side beam 8, and the two ends of the floor beam inner plate 6 are respectively connected to The first front floor side rail 7 is connected to the second front floor side rail 8 .

The rear floor frame 3 includes the first power battery rear fixing bracket 3.1 and the second power battery rear fixing bracket 3.2 respectively arranged on both sides of the rear floor 4, and the first power battery rear fixing bracket 3.1 and the second power battery rear fixing bracket 3.2. The front ends are respectively connected to the rear two ends of the floor beam inner plate 6 . The front end side of the first power battery rear fixing bracket 3.1 is connected to the inner side of the first front floor side beam 7, and the front end side of the second power battery rear fixing bracket 3.2 is connected to the inner side of the second front floor side beam 8. side connection.

Referring to Fig. 2, the front fixing bracket 5.1 of the first power battery and the front fixing bracket 5.2 of the second power battery are connected to the width of the front floor 1, and the front section of the rear fixing bracket 3.1 of the first power battery and the rear fixing bracket 3.2 of the second power battery Floor 4 web connection.

Combining Figure 1 and Figure 3, there are brackets 9 for the installation of the power battery 2 on both sides of the bottom of the power battery 2. The bracket 9 is provided with a plurality of lifting lugs 9.1 connected to the floor, and the front end of the bracket 9 is respectively connected to the first The front fixing bracket 5.1 of a power battery is fixed with the front fixing bracket 5.2 of the second power battery, and the rear end of the bracket 9 is respectively fixed with the rear fixing bracket 3.1 of the first power battery and the rear fixing bracket 3.2 of the second power battery through the lifting lug 9.1.

The first power battery front fixing bracket 5.1 and the second power battery front fixing bracket 5.2 are provided with a first nut plate 5.3 and a first connecting nut 5.4 fixedly connected with the lifting lug 9.1. The first power battery rear fixing bracket 3.1 and the second power battery rear fixing bracket 3.2 are provided with a second nut plate 3.3 and a second connecting nut 3.4 fixedly connected to the lifting lug 9.1.

When in use, the front fixing bracket 5.1 of the first power battery, the front fixing bracket 5.2 of the second power battery, the rear fixing bracket 3.1 of the first power battery and the rear fixing bracket 3.2 of the second power battery form a frame structure, and the power battery 2 is arranged therein. The power battery 2 is connected with the front and rear fixing brackets through the lugs 9.1 on the bracket 9.

The front fixing bracket 5.1 of the first power battery and the front fixing bracket 5.2 of the second power battery form part of the front floor frame 5, the rear fixing bracket 3.1 of the first power battery and the rear fixing bracket 3.2 of the second power battery form part of the rear floor frame 3, It has high battery fixing point strength and can enhance the performance of the vehicle body.

Claims (6)

1. A power battery fixing bracket connection structure under the floor, including a front floor (1), a rear floor (4), a front floor frame (5) supporting the front floor (1), and a rear floor frame supporting the rear floor (4) (3) and the power battery (2) arranged under the front and rear floors, characterized in that: the front end of the rear floor (4) is provided with a floor beam inner plate (6), and the front floor frame (5) includes The first power battery front fixing bracket (5.1) and the second power battery front fixing bracket (5.2) on both sides of the front floor (1), the first power battery front fixing bracket (5.1) and the second power battery front fixing bracket The rear end of (5.2) is respectively connected with the two ends of the front side of the floor beam inner plate (6); The rear floor frame (3) includes a first power battery rear fixing bracket (3.1) and a second power battery rear fixing bracket (3.2) respectively arranged on both sides of the rear floor (4), and the first power battery rear fixing bracket (3.2) The front ends of the bracket (3.1) and the rear fixing bracket (3.2) of the second power battery are respectively connected with the rear two ends of the floor cross member inner plate (6). 2. The power battery fixing bracket connection structure under the floor according to claim 1, characterized in that: the outer sides of the first power battery front fixing bracket (5.1) and the second power battery front fixing bracket (5.2) are respectively provided with a second A front floor side stringer (7) and a second front floor side stringer (8), the two ends of the floor crossbeam inner plate (6) are respectively connected to the first front floor side stringer (7) and the second front floor side beam The side stringers (8) are connected. 3. The connection structure of the power battery fixing bracket under the floor according to claim 2, characterized in that: the front end side of the first power battery rear fixing bracket (3.1) is connected to the inner side of the first front floor side longitudinal beam (7). Side connection, the front end side of the second power battery rear fixing bracket (3.2) is connected to the inner side of the second front floor side beam (8). 4. The power battery fixing bracket connection structure under the floor according to claim 1, characterized in that: the bottom and both sides of the power battery (2) are provided with brackets (9) for the installation of the power battery (2), and the brackets (9) is provided with a plurality of lifting lugs (9.1) connected to the floor, and the front end of the bracket (9) is respectively connected to the front fixing bracket (5.1) of the first power battery and the front of the second power battery through the lifting lugs (9.1). The fixing bracket (5.2) is fixed, and the rear end of the bracket (9) is respectively fixed to the first power battery rear fixing bracket (3.1) and the second power battery rear fixing bracket (3.2) through the lugs (9.1). 5. The power battery fixing bracket connection structure under the floor according to claim 4, characterized in that: the first power battery front fixing bracket (5.1) and the second power battery front fixing bracket (5.2) are provided with the same The first nut plate (5.3) and the first connecting nut (5.4) that are fixedly connected to the lifting lug (9.1), the first power battery rear fixing bracket (3.1) and the second power battery rear fixing bracket (3.2) are provided with A second nut plate (3.3) and a second connecting nut (3.4) fixedly connected to the lifting lug (9.1). 6. The power battery fixing bracket connection structure under the floor according to claim 1, characterized in that: the first power battery front fixing bracket (5.1) and the second power battery front fixing bracket (5.2) are connected to the front floor (1) The front sections of the first power battery rear fixing bracket (3.1) and the second power battery rear fixing bracket (3.2) are connected with the width of the rear floor (4).

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