Automobile forecabin cross beam

Abstract

The utility model provides an automobile forecabin cross beam which is characterized in that two ends of a cross beam body arranged along the width direction of an automobile are lapped on a base, the base is fixedly connected with an upper plate and an inner side plate of a forecabin longitudinal beam, the upper plate and the inner side plate are close to the front end of the forecabin longitudinal beam, and a space between the longitudinal beams is reserved below the cross beam under the condition that the arrangement requirement of a compressor is met. And meanwhile, the base is fixedly connected with the upper plate and the inner side plate of the forecabin longitudinal beam, so that the stability of the automobile forecabin and the rigidity of the whole automobile are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile body, specifically relates to an automobile front compartment cross beam. BACKGROUND

[0002] In the traditional body design, in order to improve the body stiffness, while ensuring the accuracy of each mounting point in the front compartment of the body, the front compartment left side rail and the front compartment right side rail will be provided with the front compartment cross beam. But because the electric vehicle loses the masking effect of engine compared with the traditional fuel vehicle, the vibration generated by the compressor in the vehicle will be directly transmitted to the compressor cross beam, and then transmitted to the vehicle body through the connection between the front compartment side rail and the body, and radiate noise to the vehicle. Therefore, the lap joint mode of the compressor cross beam and the front compartment side rail is extremely important.

[0003] Such as the name "a new type of front compartment framework structure of electric vehicle" (patent number: CN 103569210 A) a new type of front compartment framework structure of electric vehicle, it includes front compartment left side rail and front compartment right side rail, and the front compartment left side rail and the front compartment right side rail are provided with front compartment cross beam framework structure, the front compartment cross beam framework structure and the front compartment left side rail, the front compartment right side rail form a kind of frame type front compartment framework structure, although two cross beams are arranged in the power assembly and electrical components in the above scheme, the connection area of the two ends of the cross beam and the vehicle side rail is smaller, after the compressor accessories are installed on the cross beam, the cross beam is stressed greatly, and the connection between the cross beam and the automobile front compartment is easy to deform and crack, which affects the NVH performance of the vehicle, and also directly affects the driving experience of the driver and passenger. CONTENT OF UTILITY MODEL

[0004] The utility model provides a kind of automobile front compartment cross beam, to improve the stability of automobile front compartment, and the stiffness of whole vehicle.

[0005] To achieve the above purpose, the utility model uses the following technical solutions:

[0006] A kind of automobile front compartment cross beam, the two ends of the cross beam body arranged along the direction of vehicle width are lapped on base, and the base is fixedly connected with the upper plate and the inner side plate of the adjacent front end of the front compartment side rail.

[0007] In the above scheme, the cross beam body is lapped on the front compartment side rail through the base, and the space between the side rails is reserved below the cross beam to facilitate the installation of the front compartment components and pipelines while meeting the requirements of compressor arrangement, and the base is fixedly connected with the upper plate and the inner side plate of the front compartment side rail, to improve the stability of automobile front compartment and the stiffness of whole vehicle. DRAWING DESCRIPTION

[0008] Figure 1 It is the overall structure schematic diagram of the utility model;

[0009] Figure 2 It is Figure 1Enlarged detail image;

[0010] Figure 3 This is a schematic diagram of the base structure in this utility model. Detailed Implementation

[0011] like Figures 1 to 3 The diagram shows a front cabin crossbeam of an automobile, in which the two ends of the crossbeam body 10 arranged along the width of the vehicle overlap the base 20, and the base 20 is fixedly connected to the upper plate 31 and the inner side plate 32 of the front cabin longitudinal beam 30 near the front end.

[0012] In the above scheme, the two ends of the crossbeam body 10 are fixedly connected to the base 20, and the base 20 is fixedly connected to the upper plate 31 and inner side plate 32 of the front compartment longitudinal beam 30. The base 20 is connected to the front end of the front compartment longitudinal beam 30 on the left and right sides, which is conducive to arranging the energy absorption unit, front anti-collision crossbeam and water tank bracket and other components at the front end of the front compartment longitudinal beam 30, improving the stability of the front compartment of the car and ensuring the torsional stiffness of the body-in-white. The crossbeam body 10 is directly connected to the front compartment longitudinal beam 30 through the base 20, which shortens the vertical distance between the crossbeam body 10 and the front compartment longitudinal beam 30, while also taking into account the space reserved between the front compartment longitudinal beam 30 below the crossbeam body 10, which facilitates the arrangement of the car front compartment components.

[0013] Furthermore, the base 20 includes an angled plate 21, the vertical plate 211 of which is fixedly connected to the inner side plate 32 of the front cabin longitudinal beam 30, and the horizontal plate 212 of which is fixedly connected to the upper plate 31 of the longitudinal beam 30.

[0014] In the above scheme, the vertical plate 211 of the angle plate 21 is fixedly connected to the inner side plate 32 of the front compartment longitudinal beam 30 by bolts, and the horizontal plate 212 is fixedly connected to the upper plate 31 of the longitudinal beam 30 by bolts to provide sufficient strength and rigidity, ensure the stable connection between the horizontal beam body 10 and the front compartment longitudinal beam 30, and reduce the risk of increased noise level in the vehicle due to insufficient rigidity in the front compartment area.

[0015] Furthermore, the upper edge of the vertical plate 211 is folded inward to form a flat support plate 22. The two ends of the crossbeam body 10 are fixedly connected to the support plate 22. The crossbeam body 10 and the support plate 22 are connected by guide pins and bolts to form a support structure, which ensures the torsional rigidity of the front compartment of the car and improves the NVH performance of the body-in-white.

[0016] Furthermore, in order to improve the structural strength of the base 20, a reinforcing rib 23 is provided between the support plate 22 and the front and rear edges of the vertical plate 211 and the horizontal plate 212, and the surface of the reinforcing rib 23 is perpendicular to the length of the vehicle.

[0017] The preferred crossbeam body 10 has a beam body that is wider at the top and narrower at the bottom, which saves volume while providing sufficient mounting area for the front compartment components. In other words, the crossbeam body 10 has a trapezoidal cavity with a wide top surface and a narrow bottom surface, with a vertical cross-section parallel to the vehicle length direction.

[0018] Furthermore, the crossbeam body 10 is equipped with a front compartment accessory mounting bracket 40 for installing new energy vehicle-related components, thus optimizing the space layout to the maximum extent.

[0019] Furthermore, the outer upright plate edge of the reinforcing rib 23 and the outer upright plate 33 of the upper plate 31 form a T-shaped structure. The outer upright plate 33 and the reinforcing rib 23 form abutting fit, which can quickly position the installation position when the base 20 and the front cabin longitudinal beam 30 are assembled.

Claims

1. A crossbeam for the front compartment of an automobile, characterized in that: The two ends of the crossbeam body (10) arranged along the width of the vehicle overlap on the base (20), and the base (20) is fixedly connected to the upper plate (31) and inner side plate (32) of the front longitudinal beam (30) near the front end.

2. The automotive front compartment crossbeam according to claim 1, characterized in that: The base (20) includes an angle plate (21), the vertical plate (211) of the angle plate (21) is fixedly connected to the inner side plate (32) of the front cabin longitudinal beam (30), and the horizontal plate (212) of the angle plate (21) is fixedly connected to the upper plate (31) of the longitudinal beam (30).

3. The automotive front compartment crossbeam according to claim 2, characterized in that: The upper edge of the vertical plate (211) is folded inward to form a flat support plate (22), and both ends of the crossbeam body (10) are fixedly connected to the support plate (22).

4. The automotive front compartment crossbeam according to claim 3, characterized in that: The support plate (22) is provided with a reinforcing rib plate (23) between the front and rear edges of the vertical plate (211) and the horizontal plate (212), and the surface of the reinforcing rib plate (23) is perpendicular to the length of the vehicle.

5. The automotive front compartment crossbeam according to claim 1, characterized in that: The beam body (10) is wider at the top and narrower at the bottom.

6. The automotive front compartment crossbeam according to claim 1, characterized in that: The crossbeam body (10) is provided with a front cabin accessory mounting bracket (40).

7. The automotive front compartment crossbeam according to claim 4, characterized in that: The outer side of the reinforcing rib (23) and the outer side of the upper plate (31) form a T-shaped structure.

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