CN203094195U - Reinforcing structure for automobile rear floor - Google Patents

Abstract

The utility model provides a reinforcement structure for the rear floor of an automobile, which belongs to the technical field of vehicles. The utility model solves the technical problems such as insufficient overall strength of the rear floor of the reinforced structure of the existing automobile rear floor, and inability to meet the safety requirements of the automobile. The invention discloses a reinforcement structure for the rear floor of an automobile. The rear floor is provided with installation holes for installing aluminum-air batteries. The reinforcement structure is arranged at the installation hole of the rear floor and includes a reinforcement cover, which is fixed on the upper plate of the rear floor of the automobile. Cover the mounting hole of the rear floor in the reinforcement cover. The utility model has the advantages that the force on the rear floor around the installation hole is uniform, and the strength of the rear floor is ensured.

Description

Reinforcing structure of automobile rear floor

technical field

The utility model belongs to the technical field of vehicles, and relates to an automobile rear floor, in particular to a reinforcement structure for the automobile rear floor.

Background technique

In recent years, new energy technology has developed rapidly, and the automobile with aluminum-air battery as a power source has broad application prospects.

The aluminum-air battery includes the aluminum-air battery body and the electrolyte box, which are arranged up and down. The aluminum-air battery body is arranged on the upper part, and the electrolyte box is arranged on the lower part. It needs to pass through the floor. The rear floor of the existing car is generally a whole The floor surface cannot meet the requirements for the installation of aluminum-air batteries. In order to meet the installation of aluminum-air batteries, a hole is opened in the middle of the rear floor of the car so that the electrolyte tank can pass through the rear floor to meet the installation of aluminum-air batteries, but this will reduce the overall strength of the rear floor and cannot meet the requirements of the car. security requirements.

Contents of the invention

The purpose of the utility model is to solve the above-mentioned problems in the existing technology, and propose a reinforcement structure for the rear floor of the automobile, which has the characteristics of being able to strengthen the strength of the rear floor of the automobile.

The purpose of this utility model can be achieved through the following technical proposals: a reinforcement structure for the rear floor of a car, the rear floor is provided with an installation hole for installing an aluminum-air battery, and it is characterized in that the reinforcement structure is arranged in the installation hole of the rear floor The place includes a reinforcement cover, and the reinforcement cover is fixed on the upper surface of the rear floor of the automobile and covers the installation hole of the rear floor in the reinforcement cover.

When the rear floor is subjected to a force in the horizontal direction, the reinforcement cover can transmit the force evenly through the installation hole, so that the force on the rear floor around the installation hole is even, ensuring the strength of the rear floor; the reinforcement cover can hold the electrolyte tank The part of the board surface on the floor after the body protrudes is covered in the reinforcement cover.

In the above-mentioned reinforcement structure for the rear floor of an automobile, the reinforcement cover includes a plate-shaped body and a fixing portion bent relative to the edge of the body, a groove is formed between the body and the fixing portion, and the fixing portion One end of the part has a flange facing the outer surface of the fixing part, and the flange is parallel to the upper surface of the rear floor. The groove can accommodate the part of the plate surface on the floor after the electrolyte tank protrudes.

In the above-mentioned reinforcement structure for the rear floor of an automobile, the shape and size of the body are the same as the shape and size of the mounting hole. Ensure that the structure of the reinforced cover is minimized to achieve the effect of light weight and compact assembly.

In the above-mentioned reinforcement structure of the rear floor of the automobile, the flange of the fixing part is fixed to the upper surface of the rear floor by welding. The flanging can increase the contact surface between the fixed part and the upper plate surface, and increase the welding strength.

In the above-mentioned reinforcement structure for the rear floor of the automobile, the fixing part is provided with a through hole communicating with the groove. The through holes are used to pass through the wiring harness to facilitate the installation of aluminum-air batteries.

In the above-mentioned reinforcement structure of the rear floor of the automobile, several reinforcing ribs are arranged in parallel between the fixing part and the main body, and the reinforcing ribs are arranged along the front-rear direction of the rear floor of the automobile. The ribs can increase the strength of the reinforcement cover.

In the above-mentioned reinforcement structure for the rear floor of an automobile, there is an included angle a between the outer surface of the fixing part and the main body, and the included angle a is greater than 93° and less than 110°. The included angle a within this range can not only satisfy the installation of the reinforcement cover, but also reduce the bending force between the fixing part and the body, so that the force can be effectively transmitted on the reinforcement cover along its acting direction.

Compared with the prior art, the reinforced structure of the rear floor of the automobile has the following advantages:

1. Through the strong cover, the force on the rear floor is evenly transmitted through the installation hole, so that the force on the rear floor around the installation hole is uniform, and the strength of the rear floor is guaranteed.

2. By forming an angle a between the outer surface of the fixing part and the body, the bending force between the fixing part and the body is reduced, so that the force can be effectively transmitted on the reinforcement cover along its acting direction.

Description of drawings

Fig. 1 is a structural schematic view of the fixing of the reinforcement cover and the rear floor of the utility model.

Fig. 2 is a schematic cross-sectional structure diagram of A-A in Fig. 1 .

In the figure, 11, rear floor; 12, installation hole; 21, reinforcement cover; 22, body; 221, reinforcement rib; 23, fixed part; 231, flange.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

Embodiment one

As shown in Figure 1 and Figure 2, a reinforcement structure for the rear floor of a car, the rear floor 11 is provided with an installation hole 12 for installing an aluminum-air battery, the reinforcement structure is arranged at the installation hole 12 of the rear floor 11, including reinforcement Cover 21, the reinforcement cover 21 is fixed on the upper plate surface of the automobile rear floor 11 and the mounting hole 12 of the rear floor is covered in the reinforcement cover 21.

As shown in Figures 1 and 2, the reinforcement cover 21 includes a plate-shaped body 22 and a fixed portion 23 bent relative to the edge of the body 22. The shape and size of the body 22 are the same as those of the mounting hole 12. The body 22 and A groove is formed between the fixing parts 23 . One end of the fixing part 23 has a flange 231 , the flange 231 faces the outer surface of the fixing part 23 , and the flange 231 is parallel to the upper surface of the rear floor 11 . The flange 231 of the fixing part 23 is fixed to the upper surface of the rear floor 11 by welding, and the welding method in the first embodiment is electric welding; the groove can accommodate the part where the electrolyte box protrudes from the upper surface of the rear floor 11 .

As shown in FIG. 1 , a through hole communicating with the groove is opened on the fixing portion 23 . Several reinforcing ribs 221 are arranged in parallel between the fixing part 23 and the main body 22 . In this embodiment, there are three reinforcing ribs 221 . The ribs 221 can increase the strength of the reinforcement cover 21 . There is an included angle a between the outer surface of the fixing part 23 and the main body 22, and as a preferred solution, the included angle a in the first embodiment is 93°.

When the rear floor 11 is subjected to a force in the horizontal direction, the reinforcing cover 21 can transmit the force evenly through the mounting hole 12, so that the force on the rear floor 11 around the mounting hole 12 is uniform, ensuring the strength of the rear floor 11; The cover 21 has a groove that can cover the part of the electrolyte box protruding from the upper surface of the rear floor 11 in the reinforced cover 21 .

Embodiment two

The structure and principle of the present embodiment are basically the same as those of the first embodiment, except that the included angle a in the second embodiment is 100°.

Embodiment three

The structure and principle of the present embodiment are basically the same as those of the first embodiment, except that the included angle a in the third embodiment is 109°.

Embodiment four

The structure and principle of this embodiment are basically the same as those of Embodiment 1, except that the welding method in Embodiment 4 is carbon dioxide shielded welding.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Although terms such as rear floor 11 ; installation hole 12 ; reinforcement cover 21 ; body 22 ; reinforcement rib 221 ; fixing portion 23 ; These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is contrary to the spirit of the utility model.

Claims (7)

1. A reinforcement structure for the rear floor of an automobile, the rear floor (11) is provided with an installation hole (12) for installing an aluminum-air battery, and the feature is that the reinforcement structure is arranged in the installation hole (12) of the rear floor (11) ), including a reinforcement cover (21), the reinforcement cover (21) is fixed on the upper surface of the automobile rear floor (11) and covers the installation hole (12) of the rear floor (11) on the reinforcement cover (21 )Inside. 2. The reinforcement structure of the automobile rear floor according to claim 1, characterized in that, the reinforcement cover (21) includes a plate-shaped body (22) and a fixed part ( 23), a groove is formed between the body (22) and the fixing part (23), and one end of the fixing part (23) has a flange (231), and the flange (231) faces On the outer side of the fixing part (23), the flange (231) is parallel to the upper surface of the rear floor (11). 3. The reinforcement structure of the automobile rear floor according to claim 2, characterized in that, the shape and size of the body (22) are the same as the shape and size of the installation hole (12). 4. The reinforcement structure of the automobile rear floor according to claim 2 or 3, characterized in that the flange (231) of the fixing part (23) is fixed to the upper surface of the rear floor (11) by welding. 5. The reinforcement structure for the rear floor of an automobile according to claim 2 or 3, characterized in that, the fixing part (23) is provided with a through hole communicating with the groove. 6. The reinforcement structure of the automobile rear floor according to claim 2 or 3, characterized in that, several reinforcing ribs (221) are arranged in parallel between the fixed part (23) and the main body (22), and the The reinforcing ribs (221) are provided along the front and rear directions of the automobile rear floor (11). 7. The reinforcement structure of the automobile rear floor according to claim 1, characterized in that there is an angle a between the outer surface of the fixing part (23) and the main body (22), and the angle a is greater than 93° is less than 110°.

Images