CN217374666U

CN217374666U - A post and vehicle

Info

Publication number: CN217374666U
Application number: CN202220734610.4U
Authority: CN
Inventors: 李小梅; 侯兆平; 付年; 覃庆鸾
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-09-06
Anticipated expiration: 2032-03-31

Abstract

The utility model discloses a A post and vehicle, the A post includes interior sheet metal plate and outer sheet metal plate, the first end rigid coupling of outer sheet metal plate and the first end rigid coupling of interior sheet metal plate, the second end rigid coupling of outer sheet metal plate and the second end rigid coupling of interior sheet metal plate and outer sheet metal plate and interior sheet metal plate enclose jointly and are equipped with the cavity, outer sheet metal plate has set gradually the first fillet of bending upwards, the second fillet of bending outwards, the third fillet of bending downwards, the fourth fillet of bending inwards and the fifth fillet of bending downwards of bending from first end to second end direction, the face between third fillet of bending and the fourth fillet of bending is outside bellied curved surface section.

Description

A post and vehicle

Technical Field

The utility model relates to an auto-parts technical field especially relates to a A post and vehicle.

Background

Wind noise has become one of the dominant noise sources for current high speed vehicles as powertrain noise, tire/road noise are effectively controlled and vehicle speeds continue to increase. When the vehicle speed exceeds 120km/h, the wind noise of the vehicle becomes more and more important, the wind noise energy of the vehicle increases with the traveling speed of the vehicle to about 6 th power, and other noises increase with the vehicle speed to be far lower than the wind noise. Both of these aspects result in wind noise being a significant source of noise for automobiles. Wind noise affects both the riding comfort of people inside the vehicle and the acoustic environment outside the vehicle.

A large number of wind noise experiments and simulation analysis show that the pneumatic noise sources of the automobile are many and complex, and the shape of the automobile changes to the protruding parts (the edges of rearview mirrors, the corners of sheet metal parts and the like) on the outer surface of the automobile, the cavity grooves and the edges and the corners of fine design parts. These noise sources may be highlighted in the wind noise spectrum curve. Wind noise can be transmitted into the vehicle through various paths, the windows and windscreens of the side doors are main transmission paths of the wind noise, and the wind noise can also enter the vehicle through weak links such as door and window sealing, rearview mirror/door handle installation gaps and the like.

The shape of the A-pillar is critical to the overall wind noise of the vehicle. The side windshield and the front windshield are main sources of noise in the cabin, the A column is used as a receiving part of the front windshield and the side windshield, the appearance of the A column has very important influence on the front windshield and the flow near the side windshield, and the existing A column appearance has the problem of large A column wind noise energy through wind noise analysis.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a A post and vehicle, its advantage is: the air flow separation is reduced, the wind noise is reduced, and the riding comfort is improved.

The utility model discloses a A post, including interior sheet metal plate and outer sheet metal plate, the first end of outer sheet metal plate and the first end rigid coupling of interior sheet metal plate, the second tip of outer sheet metal plate and the second end rigid coupling of interior sheet metal plate and outer sheet metal plate and interior sheet metal plate enclose jointly and are equipped with the cavity, outer sheet metal plate has set gradually the first fillet of bending upward from first end to second end direction, the second fillet of bending outward, the third fillet of bending downward, the fourth fillet of bending inward and the fifth fillet of bending downward of bending inward, the face between third fillet of bending and the fourth fillet of bending is outside bellied arc curved surface section.

Preferably, the radius of the second bending fillet is 2-4 mm.

Preferably, the radius of the third bending fillet is 15-25 mm.

Preferably, the maximum distance between the arcuate curved panel section and the chord line is 3-6 mm.

Preferably, the second bending fillet is the highest point in the Z-axis direction, the fourth bending fillet is the outermost end in the Y-axis direction, and the distance between the intersection point of the Z-axis and the Y-axis and the fourth bending fillet is 40-50 mm.

Preferably, the metal plate comprises a reinforcing metal plate arranged between the inner metal plate and the outer metal plate.

The utility model aims at providing a vehicle still, including foretell A post.

The utility model discloses a A post and vehicle, the advantage that has for prior art is: the first end part of the outer sheet metal plate is fixedly connected with the first end part of the inner sheet metal plate, the second end part of the outer sheet metal plate is fixedly connected with the second end part of the inner sheet metal plate, a cavity is formed by the outer sheet metal plate and the inner sheet metal plate together, a first bending fillet which is bent upwards, a second bending fillet which is bent outwards, a third bending fillet which is bent downwards, a fourth bending fillet which is bent inwards and a fifth bending fillet which is bent downwards are sequentially arranged on the outer sheet metal plate from the first end part to the second end part, and the plate surface between the third bending fillet and the fourth bending fillet is an arc-shaped curved plate section which protrudes outwards so as to slow down the separation of air flow on the A-column-shaped surface, thereby realizing the effect of reducing the A-column sound source.

Drawings

Fig. 1 is a schematic view of a state of the a-pillar mounted on a vehicle according to the present invention.

Fig. 2 is a schematic sectional view of a column a of the present invention in the direction of a-a.

Description of the figures

1. An inner sheet metal plate; 2. an outer sheet metal plate; 21. a first bending fillet; 22. a second bending fillet; 23. Thirdly, bending a round corner; 24. a fourth bending fillet; 25. fifthly, bending a round corner; 26. an arcuate curved panel section; 3. a cavity; 4. and reinforcing the sheet metal plate.

Detailed Description

An a-pillar and a vehicle according to the present invention will be described in further detail with reference to fig. 1 and 2 of the drawings.

The utility model relates to a A post, please refer to fig. 1 and fig. 2, including interior sheet metal board 1 and outer sheet metal board 2.

The first end part of the outer sheet metal plate 2 is fixedly connected with the first end part of the inner sheet metal plate 1, the second end part of the outer sheet metal plate 2 is fixedly connected with the second end part of the inner sheet metal plate 1, and the outer sheet metal plate 2 and the inner sheet metal plate 1 together enclose a cavity 3.

The outer sheet metal plate 2 is provided with a first bending fillet 21 bending upwards, a second bending fillet 22 bending outwards, a third bending fillet 23 bending downwards, a fourth bending fillet 24 bending inwards and a fifth bending fillet 25 bending downwards in sequence from the first end to the second end, the surface between the third bending fillet 23 and the fourth bending fillet 24 is an arc-shaped curved plate section 26 protruding outwards, so that the separation of air flow on the A-column profile is reduced, and the effect of reducing the A-column sound source is realized.

The utility model discloses a A post, please refer to fig. 1 and fig. 2, can also be on the basis of preceding technical scheme: the radius of the second rounded corner 22 is 2-4mm to reduce separation of the air flow at the leading edge of the a-pillar, thereby further reducing the a-pillar sound source. At a radius of 3mm for the second rounded corner 22, the aerodynamic effect of the air flow on the leading edge surface of the a-pillar is optimal.

The utility model discloses a A post, please refer to fig. 1 and fig. 2, can also be on the basis of preceding technical scheme: the radius of the third rounded corner 23 is 15-25mm to slow down the separation of the air flow on the a-cylinder profile, thereby further reducing the a-cylinder profile sound source. The aerodynamic effect of the air flow on the a-cylinder profile is best when the radius of the third rounded corner 23 is 20 mm.

The utility model discloses a A post, please refer to fig. 1 and fig. 2, can also be on the basis of preceding technical scheme: the maximum distance between the curved panel segment 26 and the chord line is 3-6mm to further slow the separation of the air flow over the a-cylinder profile and thereby further reduce the a-cylinder profile source. The aerodynamic effect of the airflow on the a-cylinder profile is further enhanced at a maximum distance of 4mm between the curved panel segment 26 and the chord line.

The utility model discloses a A post, please refer to fig. 1 and fig. 2, can also be on the basis of preceding technical scheme: the second bending round angle 22 is the highest point in the Z-axis direction, the fourth bending round angle 24 is the outermost end in the Y-axis direction, and the distance between the intersection point of the Z-axis and the Y-axis and the fourth bending round angle 24 is 40-50mm, so that the separation of airflow on the A-column profile is further slowed down, and the A-column sound source is further reduced. When the distance between the intersection point of the Z axis and the Y axis and the fourth bending fillet 24 is 45mm, the aerodynamic effect of the airflow on the A-column profile is further improved.

The utility model discloses a A post, please refer to fig. 1 and fig. 2, can also be on the basis of preceding technical scheme: and the reinforced sheet metal plate 4 is arranged between the inner sheet metal plate 1 and the outer sheet metal plate 2 to reinforce the integral structure of the A column.

The utility model also provides a vehicle, including the automobile body, the automobile body includes foretell A post. The utility model discloses a vehicle is owing to including foretell A post to realize reducing wind noise, improve the effect of riding comfort.

The above description is only for the description of several embodiments of the present invention, but the scope of the present invention should not be considered as falling within the scope of the present invention, in which all the equivalent changes or modifications or the equal-scale enlargement or reduction etc. according to the design spirit of the present invention are made.

Claims

1. An A column is characterized by comprising an inner sheet metal plate (1) and an outer sheet metal plate (2), the first end part of the outer sheet metal plate (2) is fixedly connected with the first end part of the inner sheet metal plate (1), the second end part of the outer sheet metal plate (2) is fixedly connected with the second end part of the inner sheet metal plate (1), a cavity (3) is enclosed by the outer sheet metal plate (2) and the inner sheet metal plate (1), the outer sheet metal plate (2) is sequentially provided with a first bending fillet (21) bending upwards, a second bending fillet (22) bending outwards, a third bending fillet (23) bending downwards, a fourth bending fillet (24) bending inwards and a fifth bending fillet (25) bending downwards from the first end part to the second end part, the plate surface between the third bending fillet (23) and the fourth bending fillet (24) is an arc-shaped curved plate section (26) protruding outwards.

2. An a-pillar according to claim 1, characterised in that the radius of the second bend fillet (22) is 2-4 mm.

3. An a-pillar according to claim 2, characterised in that the radius of the third bend fillet (23) is 15-25 mm.

4. An a-pillar according to claim 3, characterised in that the maximum distance between the curved panel section (26) and the chord line is 3-6 mm.

5. The A-pillar according to claim 4, wherein the second bending fillet (22) is the highest point in the Z-axis direction, the fourth bending fillet (24) is the outermost end in the Y-axis direction, and the distance between the intersection point of the Z-axis and the Y-axis and the fourth bending fillet (24) is 40-50 mm.

6. A-pillar according to any of claims 1-5, characterised in that it further comprises a reinforcement sheet metal plate (4) arranged between the inner sheet metal plate (1) and the outer sheet metal plate (2).

7. A vehicle, characterized in that it comprises an A-pillar according to any one of claims 1 to 6.