Connecting structure of steel-plastic cross beam steering column mounting bracket

Abstract

The utility model relates to a connecting structure of a steel-plastic cross beam steering column mounting bracket, which comprises a bracket limiting part arranged on the surface of a steel-plastic cross beam and a metal bracket arranged at the joint of the steel-plastic cross beam and a steering column, and the metal bracket comprises a steering column connecting part and a cross beam connecting part, the cross beam connecting part and the steel-plastic cross beam are integrally formed in a plastic coating and embedding manner; the steering column connecting parts are arranged on the two sides of the cross beam connecting part, and the support limiting part comprises a wrapping part and a limiting part, wherein the wrapping part completely wraps the cross beam connecting part and partially wraps the steering column connecting parts, and the limiting part is connected with the steel-plastic cross beam. The CCB steering column installation metal support and the steel-plastic beam front wall are connected in a plastic-coated embedded mode, integral forming is also beneficial to improvement of dimensional accuracy, reduction of subsequent screw joint and further achievement of light weight of an automobile, and the CCB steering column installation metal support and the steel-plastic beam front wall play an important role in reducing oil consumption, prolonging endurance and reducing emission.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive parts, and particularly relates to a connecting structure of a steel-plastic crossbeam steering column mounting bracket. Background Art

[0002] At present, with the rapid development of the new energy vehicle industry in China, vehicle lightweighting has become a basic technology in the development process of new energy vehicles. Vehicle lightweighting plays a crucial role in reducing fuel consumption, improving endurance, and reducing emissions, and has currently become a research hotspot in the domestic and international automotive industry. Optimizing the design of each assembly part on the basis of ensuring the original performance and continuously optimizing the vehicle model is the main idea of vehicle lightweighting.

[0003] Currently, the main materials for implementing vehicle lightweighting include carbon fiber, aluminum alloy, magnesium alloy, titanium alloy, engineering plastics, composite materials, and high-strength steel, etc., which are mainly used to transform and replace body materials. Vehicle lightweighting can be roughly divided into three categories: body lightweighting, engine lightweighting, and chassis lightweighting. Their purposes are all to reduce the vehicle weight by using lighter materials on the premise of ensuring performance, so as to achieve the functions of energy conservation and environmental protection.

[0004] In the prior art, the vehicle instrument panel crossbeam needs to ensure the body strength, and the material is usually selected as metal, and each connecting bracket part is often a metal structure or connected by welding, so the installation accuracy cannot be guaranteed, the process is complex, which is not conducive to the requirements of lightweighting, but its connection with other structures such as the steering column mounting bracket will not affect the overall strength of the body. During the lightweighting improvement process, the crossbeam can be entirely changed to a steel-plastic material, but its connection structure is complex, and it is difficult for ordinary molds to directly demold, which has increased... Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a connecting structure of a steel-plastic crossbeam steering column mounting bracket, which uses a lightweight design to connect the steel-plastic crossbeam with the steering column mounting bracket to achieve vehicle lightweighting.

[0006] The technical solution adopted by the present utility model to solve its technical problems is: to provide a connection structure for a steel-plastic crossbeam steering column mounting bracket, including a bracket limiting part provided on the surface of the steel-plastic crossbeam and a metal bracket provided at the connection between the steel-plastic crossbeam and the steering column. The metal bracket includes a steering column connection part and a crossbeam connection part. The crossbeam connection part is integrally formed with the steel-plastic crossbeam by means of plastic-coated embedding. The steering column connection parts are provided on both sides of the crossbeam connection part. One end of the steering column connection part away from the steel-plastic crossbeam is provided with a connecting piece for fixedly connecting with the steering column. The bracket limiting part includes a covering part that completely covers the crossbeam connection part and partially covers the steering column connection part, and a limiting part connected to the steel-plastic crossbeam. A plurality of glue-passing holes are opened in the parts of the crossbeam connection part and the steering column connection part covered by the bracket limiting part.

[0007] Preferably, the steering column connection part is a "concave"-shaped metal bracket. The bottom edge of the "concave" shape is the crossbeam connection part, and the two side edges of the "concave" shape are the steering column connection parts.

[0008] Preferably, the surface of the crossbeam connection part is wavy.

[0009] Preferably, a reinforcing plate is provided on the side surface of the steering column connection part, and one end of the reinforcing plate is connected to the crossbeam connection part.

[0010] Preferably, a reinforcing rib is provided between the limiting part and the covering part, and a weight-reducing groove is provided between adjacent reinforcing ribs.

[0011] Preferably, the connecting piece includes a through hole opened on the surface of the steering column connection part and a bolt passing through the through hole and mating with the steering column.

[0012] Preferably, the edge distance between the glue-passing hole and the hole on the side of the metal bracket is greater than or equal to 6 mm.

[0013] Preferably, the aperture of the glue-passing hole is φ6 mm to φ8 mm.

[0014] Preferably, the covering part is thicker on the outer side than on the inner side of the two sides of the steering column connection part covered, and the thickness of the covering part is greater than 1.4 times the thickness of the steering column connection part.

[0015] Beneficial effects

[0016] The present utility model adopts a plastic-coated embedded connection for the connection between the CCB steering column mounting metal bracket and the front panel of the steel-plastic crossbeam. The integral molding is also beneficial to improving the dimensional accuracy, reducing the subsequent screw connection, contributing to further realizing the lightweight of the vehicle, and playing a crucial role in reducing fuel consumption, improving endurance, and reducing emissions. Description of the drawings

[0017] Figure 1 It is a schematic diagram of the connection structure of a steel-plastic crossbeam steering column mounting bracket.

[0018] Figure 2 It is Figure 1 An enlarged view of the middle bracket limiting part as seen from the front.

[0019] Figure 3 It is Figure 2 Sectional view B-B in the middle.

[0020] Figure 4 It is Figure 2 An enlarged three-dimensional view of the metal bracket in the middle.

[0021] Figure 5 It is Figure 1 A schematic diagram of the connection between the metal bracket and the steering column in the middle.

[0022] Among them, 1 - bracket limiting part; 101 - reinforcing rib; 102 - weight-reducing groove; 103 - coating part; 2 - metal bracket; 201 - steering column connection part; 202 - crossbeam connection part; 203 - glue-passing hole; 204 - reinforcing plate; 3 - steering column; 4 - steel-plastic crossbeam.

[0023] The same reference numerals in each figure represent the same component. Specific embodiments

[0024] The following further elaborates the present invention in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0025] As Figures 1 to 5 shown, the present invention provides a connection structure of a steel-plastic crossbeam steering column mounting bracket, including a bracket limiting part 1 provided on the surface of the steel-plastic crossbeam 4 and a metal bracket 2 provided at the connection between the steel-plastic crossbeam 4 and the steering column 3. The metal bracket 2 includes a steering column connection part 201 and a crossbeam connection part 202. The crossbeam connection part 202 is integrally formed with the steel-plastic crossbeam 4 by means of plastic coating and embedding; the steering column connection part 201 is provided on both sides of the crossbeam connection part 202, and a connecting piece for fixedly connecting with the steering column 3 is provided at one end of the steering column connection part 201 away from the steel-plastic crossbeam 4. The bracket limiting part 1 includes a coating part 103 that completely coats the crossbeam connection part 202 and partially coats the steering column connection part 201 and a limiting part connected to the steel-plastic crossbeam 4. A plurality of glue-passing holes 203 are opened in the parts of the crossbeam connection part 202 and the steering column 3 connection part 201 that are coated by the bracket limiting part 1.

[0026] In a specific embodiment, the steering column connecting portion 201 is a "concave"-shaped metal bracket 2. The bottom side of the "concave" shape is the crossbeam connecting portion 202, and the two side edges of the "concave" shape are the steering column connecting portions 201.

[0027] The surface of the crossbeam connecting portion 202 is wavy, which increases the connection strength between the metal bracket 2 and the bracket limiting portion 1 while occupying as little space as possible.

[0028] A reinforcing plate 204 is provided on the side surface of the steering column connecting portion 201. One end of the reinforcing plate 204 is connected to the crossbeam connecting portion 202, which increases the connection strength between the metal bracket 2 and the steering column 3 while occupying as little space as possible.

[0029] Reinforcing ribs 101 are provided between the limiting portion and the covering portion 103, and a weight-reducing groove 102 is formed between adjacent reinforcing ribs 101. The weight-reducing groove 102 helps to further reduce the weight of the connection structure.

[0030] The connecting member includes a through hole formed on the surface of the steering column connecting portion 201 and a bolt passing through the through hole and mating with the steering column 3. The steering column 3 can rotate at a certain angle around the bolt to adjust the height of the steering wheel according to the needs of the driver.

[0031] The glue-passing holes 203 can increase the connection strength between the metal bracket 2 and the bracket limiting portion 1. The glue-passing holes 203 are distributed according to the shape of the metal bracket 2, and can also be arranged according to the following principle: the hole edge distance between the glue-passing holes 203 and the side edge of the metal bracket 2 is greater than or equal to 6 mm. The aperture of the glue-passing holes 203 is φ6 mm to φ8 mm.

[0032] The thickness t2 of the covering portion 103 covering the outer side of the two sides of the steering column connecting portion 201 is thicker than the inner side t1, and the thicknesses t1 and t2 of the covering portion 103 are greater than 1.4 times the thickness t of the steering column connecting portion 201.

Claims

1. A connecting structure of a steel-plastic crossbeam steering column mounting bracket, characterized in that, It includes a bracket limiting part provided on the surface of the steel-plastic cross beam and a metal bracket provided at the connection between the steel-plastic cross beam and the steering column. The metal bracket includes a steering column connection part and a cross beam connection part. The cross beam connection part is integrally formed with the steel-plastic cross beam by means of plastic-coated embedding. The steering column connection parts are arranged on both sides of the cross beam connection part, and a connecting piece for fixedly connecting with the steering column is provided at one end of the steering column connection part far away from the steel-plastic cross beam. The bracket limiting part includes a covering part that completely covers the cross beam connection part and partially covers the steering column connection part, and a limiting part connected to the steel-plastic cross beam. A number of glue-passing holes are opened in the parts of the cross beam connection part and the steering column connection part covered by the bracket limiting part.

2. The connecting structure of a steel-plastic crossbeam steering column mounting bracket according to claim 1, characterized in that, The steering column connection part is a "concave"-shaped metal bracket. The bottom edge of the "concave" shape is the cross beam connection part, and the two side edges of the "concave" shape are the steering column connection parts.

3. The connecting structure of a steel-plastic crossbeam steering column mounting bracket according to claim 1, characterized in that, The surface of the cross beam connection part is wavy.

4. The connecting structure of a steel-plastic crossbeam steering column mounting bracket according to claim 1, characterized in that, A reinforcing plate is provided on the side surface of the steering column connection part, and one end of the reinforcing plate is connected to the cross beam connection part.

5. The connecting structure of a steel-plastic crossbeam steering column mounting bracket according to claim 1, characterized in that, Reinforcing ribs are provided between the limiting part and the covering part, and a weight-reducing groove is formed between adjacent reinforcing ribs.

6. The connecting structure of a steel-plastic crossbeam steering column mounting bracket according to claim 1, characterized in that, The connecting piece includes a through hole opened on the surface of the steering column connection part and a bolt passing through the through hole and matching with the steering column.

7. The connecting structure of a steel-plastic crossbeam steering column mounting bracket according to claim 1, characterized in that, The hole edge distance between the glue-passing hole and the side of the metal bracket is greater than or equal to 6 mm.

8. The connection structure of a steel-plastic crossbeam steering column mounting bracket according to claim 1, characterized in that, The aperture of the glue-passing hole is φ6 mm to φ8 mm.

9. The connecting structure of a steel-plastic crossbeam steering column mounting bracket according to claim 1, characterized in that, The covering part covers the outer side of the two sides of the steering column connection part thicker than the inner side, and the thickness of the covering part is greater than 1.4 times the thickness of the steering column connection part (201).

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