Automobile A column, automobile body structure and automobile

Abstract

The utility model provides an automobile A column, an automobile body structure and an automobile, and relates to the technical field of automobile manufacturing. The automobile A column is in a long strip shape, the windward side of the automobile A column comprises a first curved surface and a second curved surface, and the first curved surface and the second curved surface are bent in the width direction of the automobile A column; the first curved surface and the second curved surface are connected in the length direction of the automobile A column in a first chamfer mode, the chamfer radius of the first chamfer is larger than or equal to 7.5 mm, the first curved surface is used for receiving airflow in the front face in the automobile running process, and the second curved surface is used for guiding the airflow in the lateral direction. According to the technical scheme, the external shape of the automobile A column is changed, the wind noise generated by the high-speed airflow is reduced, and the technical problem that after the high-speed airflow is guided to the A column through the front windshield, the high-speed airflow is separated multiple times to generate a Karman vortex street structure to form the wind noise, and then the voice communication definition of an automobile cab is affected can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle manufacturing, and in particular to an automobile A-pillar, a body structure and an automobile. Background Art

[0002] With the development of automobile technology, consumers have higher requirements for the clarity of voice communication in the car during driving. Therefore, studying the causes of noise during driving has become a top priority in automobile manufacturing.

[0003] When a passenger car is traveling at high speed, the high-speed airflow is guided to the A-pillar of the car through the front windshield, resulting in the first airflow separation. The separated airflow continues to move backward along the A-pillar of the car, resulting in the second airflow separation. The airflow after the second separation passes through the rearview mirror, resulting in the third airflow separation. The airflow separated multiple times forms more Karman vortex street structures, which in turn generates wind noise. This wind noise seriously affects the clarity of voice communication in the vehicle cab.

[0004] At present, in order to reduce the wind noise generated by high-speed airflow and improve the clarity of voice communication in the vehicle cab, the airflow separation generated by the rearview mirror is mainly reduced by changing the shape and structure of the rearview mirror of the passenger car, thereby reducing the formation of the Karman vortex street structure, reducing the wind noise in the car cab, and improving the clarity of voice communication in the vehicle cab. However, this solution requires the redesign and manufacture of the rearview mirror, which will increase the production cost. Therefore, it is urgent to solve the technical problem that after the high-speed airflow is guided to the A-pillar through the front windshield, the high-speed airflow is separated multiple times to form a Karman vortex street structure, thereby generating wind noise and affecting the clarity of voice communication in the car cab. Utility Model Content

[0005] The embodiment of the present application provides an automobile A-pillar, a body structure and an automobile, the main purpose of which is to reduce multiple separations of high-speed airflow and avoid the formation of Karman vortex street structures by changing the structure of the automobile A-pillar, thereby reducing the wind noise formed by the high-speed airflow and improving the clarity of voice communication in the automobile cab.

[0006] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0007] In a first aspect, the present application provides an A-pillar for an automobile, comprising:

[0008] The A-pillar of the automobile is in the shape of a long strip, and the windward surface of the A-pillar of the automobile comprises: a first curved surface and a second curved surface, and the first curved surface and the second curved surface are curved along the width direction of the A-pillar of the automobile;

[0009] The first curved surface and the second curved surface are connected by a first chamfer along the length direction of the A-pillar of the automobile, and the chamfer radius of the first chamfer is greater than or equal to 7.5 mm, wherein the first curved surface is used to receive the airflow from the front during driving of the automobile, and the second curved surface is used to guide the airflow laterally.

[0010] The purpose of the utility model and the solution to its technical problems can also be further achieved by adopting the following technical measures.

[0011] In some embodiments, in the aforementioned automobile A-pillar, when the curvature of the first curved surface is 0, the width of the first curved surface is greater than or equal to 20 mm.

[0012] In some embodiments, in the aforementioned automobile A-pillar, the third curved surface of the automobile A-pillar is curved along the width direction of the automobile A-pillar, and the third curved surface is connected to a side of the first curved surface facing away from the second curved surface;

[0013] The first curved surface and the third curved surface are connected by a second chamfer along the length direction of the A-pillar of the automobile, and the chamfer radius of the second chamfer is greater than or equal to 2 mm.

[0014] In some embodiments, in the aforementioned automobile A-pillar, the chord height of the second curved surface is 7±0.5 mm.

[0015] In some embodiments, in the aforementioned automobile A-pillar, the fourth curved surface of the automobile A-pillar is curved along the width direction of the automobile A-pillar, and the fourth curved surface is connected to a side of the second curved surface facing away from the first curved surface;

[0016] The second curved surface and the fourth curved surface are connected by a third chamfer along the length direction of the A-pillar of the automobile, and the chamfer radius of the third chamfer is greater than or equal to 3 mm.

[0017] In some embodiments, the aforementioned automobile A-pillar, wherein the automobile A-pillar is an integrally formed structure.

[0018] A second aspect of the present application provides a vehicle body structure, comprising:

[0019] At least one of the above-mentioned motor vehicle A-pillars;

[0020] The above-mentioned automobile A-pillar comprises:

[0021] The A-pillar of the automobile is in the shape of a long strip, and the windward surface of the A-pillar of the automobile comprises: a first curved surface and a second curved surface, and the first curved surface and the second curved surface are curved along the width direction of the A-pillar of the automobile;

[0022] The first curved surface and the second curved surface are connected by a first chamfer along the length direction of the A-pillar of the automobile, and the chamfer radius of the first chamfer is greater than or equal to 7.5 mm, wherein the first curved surface is used to receive the airflow from the front during driving of the automobile, and the second curved surface is used to guide the airflow laterally.

[0023] The purpose of the utility model and the solution to its technical problems can also be further achieved by adopting the following technical measures.

[0024] In some embodiments, the aforementioned vehicle body structure further includes:

[0025] Side windows;

[0026] The extension line of the side edge of the second curved surface of the automobile A-pillar away from the first curved surface in the width direction of the automobile A-pillar is parallel to the plane where the glass of the side window is located.

[0027] In some embodiments, the aforementioned vehicle body structure further includes:

[0028] Side trim strips, which are connected to the sides of the side windows;

[0029] An extension line of the second curved surface of the automobile A-pillar, which is away from one side of the first curved surface, in the width direction of the automobile A-pillar has a preset distance from the side decorative strip in the first direction, and the preset distance is less than or equal to 5 mm. The first direction is perpendicular to the plane direction of the glass of the side window.

[0030] A third aspect of the present application provides an automobile, comprising: at least one of the above-mentioned body structures.

[0031] By means of the above technical solution, the automobile A-pillar, the vehicle body structure and the automobile of the utility model have at least the following advantages:

[0032] The present application provides an automobile A-pillar, the windward surface of which includes a first curved surface and a second curved surface, wherein the first curved surface and the second curved surface are curved along the width direction of the automobile A-pillar; the first curved surface and the second curved surface are connected by a first chamfer along the length direction of the automobile A-pillar, and the chamfer radius of the first chamfer is greater than or equal to 7.5 mm. When the vehicle is traveling at high speed, the high-speed airflow is guided from the front windshield to the first curved surface of the automobile A-pillar. Since the automobile A-pillar has the first chamfer, the high-speed airflow guided to the first curved surface of the automobile A-pillar flows smoothly to the outside of the vehicle along the first chamfer, reducing the high-speed airflow guided to the second curved surface. Through the application of the utility model, the problem of wind noise caused by multiple separations of the high-speed airflow after the high-speed airflow is guided to the A-pillar through the front windshield and the formation of a large number of Karman vortex street structures after the separation of the airflow is solved, thereby improving the clarity of voice communication in the vehicle cab.

[0033] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments disclosed by the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments disclosed by the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the structure of an automobile A-pillar disclosed in an embodiment of the utility model;

[0036] Figure 2 A schematic diagram of another A-pillar structure of an automobile disclosed in an embodiment of the utility model;

[0037] Figure 3 Another schematic diagram of the structure of the A-pillar of an automobile disclosed in the embodiment of the utility model;

[0038] Figure 4 A schematic diagram of the cross-sectional structure of an automobile A-pillar in its width direction disclosed in an embodiment of the utility model;

[0039] Figure 5 The utility model discloses another schematic diagram of the cross-sectional structure of an automobile A-pillar in the width direction thereof.

[0040] Description of reference numerals:

[0041] 1. Automobile A-pillar;

[0042] 11. First curved surface; 12. Second curved surface; 13. First chamfer; 14. Third curved surface; 15. Second chamfer; 16. Fourth curved surface; 17. Third chamfer; 18. Side window; 19. Extension line of the width direction of the A-pillar of the car; 20. Side decorative strip; 21. Preset distance. DETAILED DESCRIPTION

[0043] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs.

[0045] At present, there is a technical problem that when a passenger car is driving at high speed, the high-speed airflow is guided to the A-pillar of the car through the front windshield and then continues to be guided to the rearview mirror, causing the high-speed airflow to be separated multiple times to form more Karman vortex street structures, thereby generating wind noise. The main solution is to change the shape and structure of the passenger car rearview mirror to reduce the airflow separation generated by the rearview mirror, thereby reducing the Karman vortex street structure, reducing the wind noise in the car cab, and improving the clarity of voice communication in the vehicle cab.

[0046] To solve the above problems, the inventor found through in-depth research that by changing the shape and structure of the rearview mirror of a passenger car, not only does it require designers to redesign, but also requires the factory to re-produce the newly designed rearview mirror, which not only takes a lot of time, but also greatly increases the production cost. Therefore, the inventor thought of solving the problem at the root of the separation of high-speed airflow, that is, changing the external shape of the A-pillar of the car. By changing the structure of the A-pillar of the car, it is possible to avoid the situation where the high-speed airflow is separated multiple times after being guided to the A-pillar of the car, thereby reducing the formation of the Karman vortex street structure, reducing the wind noise generated by the high-speed airflow, and improving the clarity of voice communication in the vehicle cab.

[0047] Embodiment 1

[0048] Based on the above considerations, if Figure 1 As shown, the utility model provides an automobile A-pillar (1), which is in the shape of an elongated strip, and the windward surface of the automobile A-pillar comprises: a first curved surface (11) and a second curved surface (12), wherein the first curved surface (11) and the second curved surface (12) are curved along the width direction of the automobile A-pillar; the first curved surface (11) and the second curved surface (12) are connected by a first chamfer (13) along the length direction of the automobile A-pillar, and the chamfer radius of the first chamfer (13) is greater than or equal to 7.5 mm, wherein the first curved surface (11) is used to receive airflow from the front during the driving of the automobile, and the second curved surface (12) is used to guide the airflow laterally.

[0049] Specifically, the automobile A-pillar (1) provided by the utility model is a sheet metal structure arranged between a front windshield and a front door frame of an automobile, and is preferably made of metal materials, such as carbon steel, aluminum alloy or magnesium aluminum alloy, etc., formed by sheet metal molding; the structure of the automobile A-pillar (1) is mainly in the shape of a long strip, and is compatible with the front windshield and the front door frame of the automobile; the windward surface of the automobile A-pillar is on the side of the automobile A-pillar body away from the cab, and the first curved surface (11) of the windward surface is used to receive the airflow in the front during the driving process of the automobile, and the second curved surface (12) is used to guide the airflow laterally. The design of the automobile A-pillar surrounded by two curved surfaces can make the airflow directed to the automobile A-pillar flow more smoothly, thereby reducing the wind noise generated by the high-speed airflow and reducing the air resistance. In addition, in the wind tunnel test, as shown in Table 1, which shows the correspondence between the size of the first chamfer and the clarity of the cab language communication, it can be seen that the car having a structure in which the first curved surface (11) and the second curved surface (12) are connected by a first chamfer (13), and the chamfer radius of the first chamfer (13) is greater than or equal to 7.5 mm, has a cab language communication clarity that is 2.2% higher than that of the car without such a structure. Therefore, the chamfer design allows the airflow directed to the A-pillar of the car to be more smoothly directed to the outside of the car along the first chamfer (13), thereby reducing air resistance and wind noise.

[0050] In the technical solution of the utility model, the automobile A-pillar is in the shape of an elongated strip, and the windward surface of the automobile A-pillar has a first curved surface (11) and a second curved surface (12), and the first curved surface (11) and the second curved surface (12) are connected by a first chamfer (13), and the chamfer radius of the first chamfer (13) is greater than or equal to 7.5 mm. Compared with the prior art, the automobile A-pillar only has a single high-speed airflow guiding function, that is, the high-speed separated airflow is directly guided from the first curved surface (11) to the second curved surface (12), and due to a certain gap between the two curved surfaces, the separated airflow is separated again at the connection of the two curved surfaces, thereby forming a plurality of Karman vortex street structures, generating wind noise. The utility model provides a first chamfer (13) between the first curved surface (11) and the second curved surface (12), and the chamfer radius of the first chamfer (13) is greater than or equal to 7.5 mm. The additional first chamfer (13) can guide the separated high-speed airflow to the outside of the vehicle, thereby reducing the re-separation of the high-speed airflow, reducing the formation of the Karman vortex street structure, and further reducing the wind noise generated by the high-speed airflow, thereby improving the clarity of voice communication in the vehicle cab.

[0051] Table 1

[0052]

[0053] like Figure 1 As shown, in a specific embodiment, the aforementioned automobile A-pillar, wherein, when the curvature of the first curved surface (11) is 0, the width of the first curved surface (11) is greater than or equal to 20 mm.

[0054] Specifically, when the first curved surface (11) has a curvature of zero, the curved surface may be planar. In this case, the width of the first curved surface (11) is defined as the maximum distance between any two points on the curved surface along the width direction of the A-pillar of the automobile.

[0055] As shown in Table 2, the width of the first curved surface corresponds to the clarity of the cab language communication. Under the wind tunnel test, when the curvature is 0, compared with the vehicle without the structure of the first curved surface (11) with a width of 0 mm, the cab language clarity of the vehicle with a structure of the first curved surface (11) with a width greater than or equal to 20 mm is 6.8% higher. It can be seen that when the curvature of the first curved surface (11) is 0, the design structure of the first curved surface (11) with a width greater than or equal to 20 mm can change the direction of the airflow directed to the A-pillar of the automobile, thereby reducing the generation of the Karman vortex street structure, thereby reducing the wind noise generated by the high-speed airflow. At the same time, increasing the width of the first curved surface (11) can also improve the overall rigidity and impact resistance of the A-pillar of the automobile, providing a safer and more comfortable driving environment for passengers. In addition, it should be noted that when the curvature of the first curved surface (11) is not 0, the shape and size of the curved surface still need to be optimized and adjusted according to the specific vehicle model and design requirements.

[0056] like Figure 2 As shown, in a specific embodiment, the aforementioned automobile A-pillar, wherein the third curved surface (14) of the automobile A-pillar is bent along the width direction of the automobile A-pillar, and the third curved surface (14) is connected to the side of the first curved surface (11) away from the second curved surface (12); the first curved surface (11) and the third curved surface (14) are connected to each other at a second chamfer (15) along the length direction of the automobile A-pillar, and the chamfer radius of the second chamfer (15) is greater than or equal to 2 mm.

[0057] Specifically, the automobile A-pillar is surrounded by a first curved surface (11), a second curved surface (12) and a third curved surface (14), and the first curved surface (11) is used to receive the airflow in the front during the driving process of the automobile, the second curved surface (12) is used to guide the airflow laterally, and the third curved surface (14) is adapted to the front windshield side, and its convex surface is closely fitted to the front windshield side, and the concave surface of the third curved surface (14) faces the inside of the automobile A-pillar body, forming a smooth transition area. This automobile A-pillar design surrounded by three curved surfaces can better guide the flow of airflow, reduce the turbulence of airflow and the generation of wind noise, and at the same time can also increase the strength and rigidity of the automobile A-pillar, so that the A-pillar has better load-bearing capacity and stability when bearing loads, and improve driving comfort and safety. In addition, the first curved surface (11) and the third curved surface (14) are connected to each other at a second chamfer (15) along the length direction of the A-pillar of the automobile, and the chamfer radius of the second chamfer (15) is greater than or equal to 2 mm. This chamfer design enables the high-speed airflow to be smoothly guided to the outside of the automobile along the chamfer after being directed to the A-pillar.

[0058] Table 2

[0059]

[0060] Table 3

[0061]

[0062] As shown in Table 3, which shows the correspondence between the size of the second chamfer and the clarity of the language communication in the cab, under the wind tunnel test, by comparing the test results of different chamfer radii, it can be seen that the language clarity of the cab of a car with a second chamfer and a second chamfer radius greater than or equal to 2mm is 1.7% higher than that of a car with a second chamfer radius equal to 1mm. It can be seen that a car with a second chamfer (15) and a second chamfer radius greater than or equal to 2mm can reduce the wind noise generated by high-speed airflow.

[0063] like Figure 2 As shown, in some embodiments, the chord height of the second curved surface (12) of the aforementioned automobile A-pillar is 7±0.5 mm.

[0064] Specifically, the chord height of the second curved surface (12) refers to the vertical distance from the vertex of the second curved surface (12) to any point on the curved surface. If the chord height of the second curved surface (12) is too high, such as greater than 7.5 mm, it will cause the high-speed airflow to be blocked, increasing wind resistance and wind noise; if the chord height of the second curved surface (12) is too low, such as less than 6.5 mm, it will cause the second curved surface (12) to be uneven, affecting the high-speed airflow guiding effect.

[0065] like Figure 3 As shown, in some embodiments, the fourth curved surface (16) of the aforementioned automobile A-pillar is bent along the width direction of the automobile A-pillar, and the fourth curved surface (16) is connected to the side of the second curved surface (12) away from the first curved surface (11); the second curved surface (12) and the fourth curved surface (16) are connected to each other at a third chamfer (17) along the length direction of the automobile A-pillar, and the chamfer radius of the third chamfer (17) is greater than or equal to 3 mm.

[0066] Specifically, the automobile A-pillar is surrounded by a first curved surface (11), a second curved surface (12), a third curved surface (14) and a fourth curved surface (16), wherein the first curved surface (11) is used to receive the airflow in the front during the driving process of the automobile, the second curved surface (12) is used to guide the airflow in the side, the third curved surface (14) is adapted to the front windshield side, and its convex surface is closely fitted to the front windshield side, and the concave surface of the third curved surface (14) faces the inside of the automobile A-pillar body, forming a smooth transition area, and the fourth curved surface (16) is adapted to the door frame of the vehicle, and its convex surface is closely fitted to the side door frame, and the concave surface of the fourth curved surface (16) faces the inside of the automobile A-pillar body, forming a smooth transition area. This design surrounded by four curved surfaces can better guide the flow of high-speed airflow, reduce the turbulence and noise of the high-speed airflow, and at the same time, can also increase the strength and rigidity of the automobile A-pillar, so that the A-pillar has better bearing capacity and stability when bearing loads, and improve the comfort and safety of the driver.

[0067] As shown in Table 4, which shows the correspondence between the third chamfer size and the clarity of the language communication in the cab, under the wind tunnel test, by comparing the test results of different chamfer radii, it can be seen that the language clarity of the cab of the car with the third chamfer (17) and the third chamfer radius greater than or equal to 3mm is 0.4% higher than that of the car with the third chamfer radius of 0. It can be seen that the design of the A-pillar of the car with the third chamfer (17) and the chamfer radius of the third chamfer (17) greater than or equal to 3mm can make the high-speed airflow smoothly guided to the rear side of the car body along this chamfer after being guided to the A-pillar, thereby reducing the wind noise generated by the high-speed airflow.

[0068] like Figure 3 As shown, in some embodiments, the aforementioned automobile A-pillar is an integrally formed structure.

[0069] Specifically, the automobile A-pillar is preferably made of metal materials, such as carbon steel, aluminum alloy or magnesium aluminum alloy, etc., which are formed by sheet metal. In the manufacturing process, in order to ensure the accuracy of the shape of the automobile A-pillar (1) as an integrally formed structure, advanced forming technology and welding technology can be used. In addition, the integrally formed structure design of the automobile A-pillar can ensure the continuity of the curved surface of the automobile A-pillar, can better absorb and disperse the impact force of high-speed airflow, can not only reduce the wind noise generated by the high-speed airflow, but also reduce the assembly links, improve the production efficiency of the automobile, and reduce its manufacturing cost.

[0070] Table 4

[0071]

[0072] Embodiment 2

[0073] The second embodiment of the utility model proposes a vehicle body structure, which comprises: an automobile A-pillar (1) in the shape of a long strip, the windward surface of the automobile A-pillar comprises: a first curved surface (11) and a second curved surface (12), the first curved surface (11) and the second curved surface (12) are curved along the width direction of the automobile A-pillar; the first curved surface (11) and the second curved surface (12) are connected by a first chamfer (13) along the length direction of the automobile A-pillar, the chamfer radius of the first chamfer (13) is greater than or equal to 7.5 mm, wherein the first curved surface (11) is used to receive airflow from the front during the driving of the automobile, and the second curved surface (12) is used to guide the airflow laterally.

[0074] Specifically, the automobile A-pillar described in the second embodiment can directly use the automobile A-pillar provided in the first embodiment. The specific implementation structure can refer to the relevant content described in the first embodiment, which will not be repeated here.

[0075] like Figure 4 As shown, in a specific embodiment, the above-mentioned vehicle body structure also includes: a side window (18); an extension line (19) of a side edge of the second curved surface (12) of the vehicle A-pillar away from the first curved surface (11) in the width direction of the vehicle A-pillar is parallel to the plane where the glass of the side window is located.

[0076] Specifically, the side windows (18) are important components of the vehicle body structure and are usually composed of glass and a metal frame. They are located on both sides of the vehicle to provide a clear field of vision for the driver and passengers.

[0077] As shown in Table 5, the relationship between the extension line of the side edge of the second curved surface of the A-pillar of the automobile away from the first curved surface in the width direction of the automobile A-pillar and the plane where the glass of the side window is located and the correspondence table of the clarity of the language communication in the cab, it can be seen that in the wind tunnel test, the car with a structure in which the extension line (19) of the side edge of the second curved surface (12) of the automobile A-pillar away from the first curved surface (11) in the width direction of the automobile A-pillar is parallel to the plane where the glass of the side window is located has a 2.2% higher clarity of the language in the cab than the car with a structure in which the extension line is not parallel to the plane where the glass is located. It can be seen that this design makes the lines of the automobile A-pillar more smooth, can guide the high-speed airflow directed to the automobile A-pillar to the direction of the side window glass, reduce the generation of the Karman vortex street structure, and then reduce the wind noise generated by the high-speed airflow, and improve the clarity of the language in the automobile cab.

[0078] Table 5

[0079]

[0080] like Figure 4 As shown, in a specific embodiment, the above-mentioned vehicle body structure also includes: a side panel decorative strip (20), which is cooperatively connected with the four sides of the side window; an extension line of the second curved surface (12) of the automobile A-pillar away from the first curved surface (11) on the side edge in the width direction of the automobile A-pillar has a preset distance (21) with the side panel decorative strip in the first direction, and the preset distance (21) is less than or equal to 5 mm, and the first direction is perpendicular to the plane direction of the glass of the side window.

[0081] Table 6

[0082]

[0083] Specifically, the side trim strip (20) is usually made of plastic or rubber material and is used to decorate and protect the side of the automobile body. In addition, as shown in Table 6, which shows the correspondence between the preset distance and the clarity of the language communication in the cab, in the wind tunnel test, the extension line (19) of the side edge of the second curved surface (12) of the above-mentioned automobile A-pillar away from the first curved surface (11) in the width direction of the automobile A-pillar and the side trim strip (20) has a preset distance (21) in the first direction, and the preset distance (21) is less than or equal to 5mm. Compared with the automobile with a preset distance greater than 5mm, the clarity of the language in the cab is 2.8% higher. It can be seen that this design can effectively guide the airflow to flow backward, reduce the turbulence of the airflow and the generation of noise, thereby improving the clarity of the language in the cab and providing the driver with a clearer and more comfortable driving environment.

[0084] Embodiment 3

[0085] A third embodiment of the utility model provides a car, comprising: a body structure; the body structure comprises: an A-pillar (1) of the car in a long strip shape, the windward surface of the A-pillar of the car comprising: a first curved surface (11) and a second curved surface (12), the first curved surface (11) and the second curved surface (12) being curved along the width direction of the A-pillar of the car; the first curved surface (11) and the second curved surface (12) being connected by a first chamfer (13) along the length direction of the A-pillar of the car, the chamfer radius of the first chamfer (13) being greater than or equal to 7.5 mm, wherein the first curved surface (11) is used to receive airflow from the front during driving of the car, and the second curved surface (12) is used to guide the airflow laterally.

[0086] Specifically, the vehicle body structure described in the third embodiment can directly apply the vehicle body structure provided in the second embodiment. The specific implementation structure can refer to the relevant contents described in the second embodiment, which will not be described here.

[0087] The utility model discloses these embodiments to make the utility model disclosure thorough and complete, and to fully express the scope of the utility model disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​described in these embodiments should be interpreted as merely exemplary, rather than as limiting.

[0088] It should be noted that in the description of this specification, the terms "upper", "lower", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "connect", "install", "fixed", etc. should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0089] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0090] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An automobile A-pillar, characterized in that: The automobile A-pillar (1) is in the shape of an elongated strip, and the windward surface of the automobile A-pillar comprises: a first curved surface (11) and a second curved surface (12), wherein the first curved surface (11) and the second curved surface (12) are curved along the width direction of the automobile A-pillar; The first curved surface (11) and the second curved surface (12) are connected by a first chamfer (13) along the length direction of the A-pillar of the automobile, and the chamfer radius of the first chamfer (13) is greater than or equal to 7.5 mm, wherein the first curved surface (11) is used to receive the airflow from the front during the driving of the automobile, and the second curved surface (12) is used to guide the airflow laterally.

2. The automobile A-pillar according to claim 1, characterized in that: When the curvature of the first curved surface (11) is 0, the width of the first curved surface (11) is greater than or equal to 20 mm.

3. The automobile A-pillar according to claim 1, characterized in that: The third curved surface (14) of the automobile A-pillar is curved along the width direction of the automobile A-pillar, and the third curved surface (14) is connected to a side of the first curved surface (11) that is away from the second curved surface (12); The first curved surface (11) and the third curved surface (14) are connected at a second chamfer (15) along the length direction of the automobile A-pillar, and the chamfer radius of the second chamfer (15) is greater than or equal to 2 mm.

4. The automobile A-pillar according to claim 1, characterized in that: The chord height of the second curved surface (12) is 7±0.5 mm.

5. The automobile A-pillar according to claim 1, characterized in that: The fourth curved surface (16) of the automobile A-pillar is curved along the width direction of the automobile A-pillar, and the fourth curved surface (16) is connected to a side of the second curved surface (12) facing away from the first curved surface (11); The second curved surface (12) and the fourth curved surface (16) are connected at a third chamfer (17) along the length direction of the A-pillar of the automobile, and the chamfer radius of the third chamfer (17) is greater than or equal to 3 mm.

6. The automobile A-pillar according to any one of claims 1 to 5, characterized in that: The automobile A-pillar (1) is an integrally formed structure.

7. A vehicle body structure, characterized in that: include: The automobile A-pillar as claimed in any one of claims 1 to 6.

8. The vehicle body structure according to claim 7, characterized in that: Also includes: Side windows (18); An extension line (19) of a side edge of the second curved surface (12) of the automobile A-pillar that is away from the first curved surface (11) in the width direction of the automobile A-pillar is parallel to the plane where the glass of the side window (18) is located.

9. The vehicle body structure according to claim 8, characterized in that: Also includes: A side panel decorative strip (20), wherein the side panel decorative strip (20) is cooperatively connected to the periphery of the side window (18); An extension line (19) of a side edge of the second curved surface (12) of the automobile A-pillar that is away from the first curved surface (11) in the width direction of the automobile A-pillar is at a preset distance (21) from the side decorative strip (20) in a first direction, the preset distance (21) being less than or equal to 5 mm, and the first direction is perpendicular to the plane direction of the glass of the side window (18).

10. An automobile, characterized in that: include: A vehicle body structure as claimed in any one of claims 7 to 9.

Images