Automobile B column and automobile

Abstract

The utility model discloses an automobile column and a vehicle. The automobile column comprises a B column inner plate, a B column outer plate and a supporting plate. The B column inner plate extends in the first direction; the B column outer plate is connected with the B column inner plate, the B column outer plate extends in the first direction, and the B column outer plate and the B column inner plate are matched to form an energy absorption cavity extending in the first direction; the supporting plate is located in the energy absorption cavity, the supporting plate is fixedly connected with the B column inner plate, the supporting plate and the B column outer plate are arranged in a spaced mode, the supporting plate comprises a reinforcing part extending in the first direction, the reinforcing part is provided with a plurality of first protruding parts and a plurality of first concave parts, and the first protruding parts and the first concave parts are alternately arranged in the first direction. Therefore, the supporting plate is located in the energy absorption cavity defined by the B-pillar inner plate and the B-pillar outer plate, the supporting plate and the B-pillar inner plate are fixedly connected, the reinforcing part of the supporting plate is provided with the multiple first protruding parts and the multiple first concave parts which are alternately arranged in the first direction, and therefore the top anti-pressure capacity of the B-pillar can be improved, and the safety of passengers and a driver is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobiles, and particularly to an automobile B-pillar and a vehicle. Background Art

[0002] In the domestic market, the number of automobiles in use is increasing continuously. With the development of the automobile industry and the improvement of traffic safety awareness, the requirements for the safety performance of automobiles are also getting higher and higher. Improving the anti-compression standard of automobiles is to ensure that the automobiles can provide sufficient protection and reduce the risk of injury to passengers and drivers in case of collision or other accidents. The B-pillar can effectively improve the anti-compression ability of the top of the automobile, but the existing implementation standards no longer meet the current industry situation and the requirements for traffic safety.

[0003] According to the provisions of the newly revised GB 26134 "Compressive Strength of Passenger Car Tops", the new standard requires an increase in the test loading load, which is increased from 1.5 times the curb weight of the original vehicle to 3 times. Therefore, on the premise of pursuing a lightweight body design, how to significantly improve the anti-compression performance of the car roof is an urgent problem to be solved. Utility Model Content

[0004] The main purpose of the present application is to provide one, aiming to solve the above-mentioned technical problems existing in the prior art.

[0005] To solve the above problems, the present application provides an automobile B-pillar, which includes a B-pillar inner panel, a B-pillar outer panel and a support plate. The B-pillar inner panel extends along a first direction; the B-pillar outer panel is connected to the B-pillar inner panel and extends along the first direction. The B-pillar outer panel and the B-pillar inner panel cooperate to form an energy-absorbing cavity extending along the first direction; the support plate is located in the energy-absorbing cavity, is fixedly connected to the B-pillar inner panel, and is spaced from the B-pillar outer panel. The support plate includes a reinforcing portion extending along the first direction, and the reinforcing portion is provided with a plurality of first protrusions and a plurality of first depressions, and the plurality of first protrusions and the plurality of first depressions are alternately arranged along the first direction.

[0006] In some embodiments, there are two reinforcing portions. The support plate includes a compressive portion extending along the first direction. The two reinforcing portions are located on both sides of the compressive portion in a second direction perpendicular to the first direction. The compressive portion is respectively connected to the two reinforcing portions, and the compressive portion is spaced from both the B-pillar outer panel and the B-pillar inner panel.

[0007] In some embodiments, the gap between the compressive portion and the B-pillar outer panel is between 3 mm and 8 mm.

[0008] In some embodiments, the support plate further includes a welding portion extending along the first direction. The welding portion is connected to the side of the reinforcing portion away from the compressive portion, and the welding portion extends outward in the second direction relative to the reinforcing portion. The support plate is fixed to the B-pillar inner panel through the welding portion.

[0009] In some embodiments, the number of welding parts is two, and one welding part is respectively connected to one reinforcing part.

[0010] In some embodiments, the welding part is provided with a plurality of second protrusions and a plurality of second depressions. The plurality of second protrusions and the plurality of second depressions are alternately arranged in the first direction. The second depressions are welded and fixed to the inner panel of the B-pillar, and the second protrusions are arranged at intervals from the inner panel of the B-pillar.

[0011] In some embodiments, one first protrusion and one second protrusion are correspondingly connected, and one first depression and one second depression are correspondingly connected.

[0012] In some embodiments, the size of the support plate in the first direction is between one-fifth and two-fifths of the size of the inner panel of the B-pillar in the first direction.

[0013] In some embodiments, the size of the support plate in the first direction is between 220 mm and 280 mm.

[0014] To solve the above problems, the present application provides a vehicle, which includes the automotive B-pillar as described above.

[0015] Compared with the prior art, an automotive pillar of the present application includes an inner panel of the B-pillar, an outer panel of the B-pillar, and a support plate. The inner panel of the B-pillar extends along the first direction; the outer panel of the B-pillar is connected to the inner panel of the B-pillar, the outer panel of the B-pillar extends along the first direction, and the outer panel of the B-pillar and the inner panel of the B-pillar cooperate to form an energy absorption cavity extending along the first direction; the support plate is located in the energy absorption cavity, the support plate is fixedly connected to the inner panel of the B-pillar, and is arranged at intervals from the outer panel of the B-pillar. The support plate includes a reinforcing part extending along the first direction, and the reinforcing part is provided with a plurality of first protrusions and a plurality of first depressions. The plurality of first protrusions and the plurality of first depressions are alternately arranged in the first direction. Through the above implementation manner, the support plate is located in the energy absorption cavity surrounded by the inner panel of the B-pillar and the outer panel of the B-pillar, and the support plate is fixedly connected to the inner panel of the B-pillar. The reinforcing part of the support plate is provided with a plurality of first protrusions and a plurality of first depressions alternately arranged in the first direction, so as to improve the top compressive capacity of the B-pillar and improve the safety of passengers and drivers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the automotive B-pillar provided by the present application;

[0018] Figure 2 Yes Figure 1 Schematic structural diagram of an embodiment of the inner plate and the support plate described

[0019] Figure 3 Yes Figure 2 Enlarged schematic structural diagram of the inner plate and the support plate shown

[0020] Figure 4 Yes Figure 1 Cross-sectional view taken along the A-A direction shown

[0021] Figure 5 Yes Figure 2 Schematic structural diagram of an embodiment of the support plate shown

[0022] Reference numerals in the drawings: Automobile B-pillar 10; B-pillar inner plate 100; B-pillar outer plate 200; Energy absorption cavity 300; Support plate 400; Reinforcing portion 410; First convex portion 411; First concave portion 412; Compression-resistant portion 420; Welding portion 430; Second convex portion 431; Second concave portion 432; First direction X; Second direction Y Detailed implementation manners

[0023] Hereinafter, embodiments of the technical solution of the present application will be described in detail with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and thus are only examples and cannot be used to limit the protection scope of the present application

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion

[0025] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality" means more than two unless otherwise specifically defined

[0026] Referring to "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments

[0027] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0028] In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0029] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0030] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0031] In terms of the domestic market, the number of automobiles in use is increasing continuously. With the development of the automobile industry and the improvement of traffic safety awareness, the requirements for the safety performance of automobiles are also getting higher and higher. Improving the anti-compression standard of automobiles is to ensure that in the event of a collision or other accidents, the automobile can provide sufficient protection and reduce the risk of injury to passengers and drivers.

[0032] To solve the related technical problems, the present application provides a vehicle, which includes an automotive B-pillar. The automotive B-pillar can effectively improve the anti-compression ability of the top of the automobile, thereby improving the safety of passengers and drivers when riding in the automobile.

[0033] However, the existing implementation standards no longer meet the needs of the industry status quo and traffic safety. According to the regulations of the newly revised GB26134 "Roof Crush Strength of Passenger Cars", the new standard requires an increase in the test loading load, which is increased from 1.5 times the curb weight of the original vehicle to 3 times. Therefore, on the premise of pursuing lightweight body design, how to significantly improve the roof crush resistance is an urgent problem to be solved. To solve the related technical problems, the present application also provides an automotive B-pillar.

[0034] See Figures 1 to 3 , Figure 1 which is a schematic structural view of an embodiment of the automotive B-pillar provided by the present application. Figure 2 is Figure 1 a schematic structural view of an embodiment of the inner panel and the support plate described above. Figure 3 is Figure 2 an enlarged schematic structural view of the inner panel and the support plate shown in the figure.

[0035] The automotive B-pillar 10 includes a B-pillar inner panel 100, a B-pillar outer panel 200, and a support plate 400. The B-pillar inner panel 100 extends along a first direction X; the B-pillar outer panel 200 is connected to the B-pillar inner panel 100, the B-pillar outer panel 200 extends along the first direction X, and the B-pillar outer panel 200 and the B-pillar inner panel 100 cooperate to form an energy absorption cavity 300 extending along the first direction X; the support plate 400 is located in the energy absorption cavity 300, the support plate 400 is fixedly connected to the B-pillar inner panel 100, and is spaced from the B-pillar outer panel 200. The support plate 400 includes a reinforcing portion 410 extending along the first direction X, and the reinforcing portion 410 is provided with a plurality of first protrusions 411 and a plurality of first recesses 412, and the plurality of first protrusions 411 and the plurality of first recesses 412 are alternately arranged along the first direction X.

[0036] The B-pillar inner panel 100 extends along the first direction X. The first direction X can be understood as the height direction of the vehicle. The two ends of the B-pillar inner panel 100 are connected to the vehicle body to support the vehicle body. The B-pillar inner panel 100 may be provided with two spaced through grooves along the first direction X. The two through grooves are spaced in a second direction Y. The two sides of the two through grooves away from each other extend along the second direction Y, and the two sides of the two through grooves close to each other extend in the direction of their respective through grooves and are connected to each other in the second direction Y. The second direction Y can be understood as the length direction of the vehicle. The planes where the two side walls of the through groove of the B-pillar inner panel 100 are located are the same as the direction in which the automotive B-pillar 10 is pressed and bent, which can improve the bending resistance of the B-pillar, and thus can improve the compressive capacity of the vehicle.

[0037] The outer panel 200 of the B-pillar extends along the first direction X. The outer panel 200 of the B-pillar has a through groove, and both sides of the through groove extend along the second direction Y. The extended parts are fixedly connected to the two mutually separated sides of the through grooves of the inner panel 100 of the B-pillar. The radial dimension of the through groove of the outer panel 200 of the B-pillar is larger than the radial dimension of the through groove of the inner panel 100 of the B-pillar, so that the inner panel 100 and the outer panel 200 of the B-pillar cooperate with each other to form an energy absorption cavity 300. The plane where the side wall of the through groove of the outer panel 200 of the B-pillar is located is the same as the bending direction of the automotive B-pillar 10, thereby improving the bending resistance of the B-pillar, and further improving the compressive resistance of the vehicle. In addition, the thickness of the energy absorption cavity 300, that is, the distance from the inner panel 100 to the outer panel 200 of the B-pillar, gradually decreases from the bottom to the top of the vehicle in the first direction X. And while the energy absorption cavity 300 extends along the first direction X, it also rotates towards the interior of the vehicle body, so that the automotive B-pillar 10 has a streamlined shape, which can reduce the wind resistance of the vehicle.

[0038] The support plate 400 is arranged inside the energy absorption cavity 300. The support plate 400 is fixedly connected to the inner panel 100 of the B-pillar and is spaced from the outer panel 200 of the B-pillar. The support plate 400 includes a strengthening portion 410. When the automotive B-pillar 10 is subjected to a large pressure, the strengthening portion 410 can be supported between the inner panel 100 and the outer panel 200 of the B-pillar. The pressure received by the inner panel 100 and the outer panel 200 of the B-pillar can be transmitted to the strengthening portion 410, thereby improving the bending resistance of the automotive B-pillar 10. The strengthening portion 410 includes a plurality of first protrusions 411 and a plurality of first depressions 412. The plurality of first protrusions 411 and the plurality of first depressions 412 are alternately arranged along the first direction X, and the same sides of the plurality of first protrusions 411 and the plurality of first depressions 412 are connected to the inner panel 100 of the B-pillar, and the same other sides extend towards the direction close to the outer panel 200 of the B-pillar. The alternating arrangement of the first protrusions 411 and the first depressions 412 can strengthen the bending resistance of the automotive B-pillar 10 and also reduce the risk of the support plate 400 breaking.

[0039] Through the above embodiments, the support plate 400 is located in the energy absorption cavity 300 surrounded by the inner panel 100 and the outer panel 200 of the B-pillar, and the support plate 400 is fixedly connected to the inner panel 100 of the B-pillar. The strengthening portion 410 of the support plate 400 is provided with a plurality of first protrusions 411 and a plurality of first depressions 412 alternately arranged along the first direction X, thereby improving the compressive resistance of the top of the B-pillar to improve the safety of passengers and drivers.

[0040] In some embodiments, there are two reinforcing portions 410. The support plate 400 includes a compressive portion 420 extending along the first direction X. The two reinforcing portions 410 are located on both sides of the compressive portion 420 in the second direction Y perpendicular to the first direction X. The compressive portion 420 is respectively connected to the two reinforcing portions 410. The compressive portion 420 is spaced apart from both the B-pillar outer panel 200 and the B-pillar inner panel 100. The support plate 400 includes a compressive portion 420 extending along the first direction X. The compressive portion 420 is respectively connected to the two reinforcing portions 410 on both sides in the second direction Y. The compressive portion 420 is spaced apart from the B-pillar inner panel 100. That is to say, the reinforcing portion 410 has a certain width. Therefore, the reinforcing portion 410 can improve the bending resistance of the vehicle B-pillar 10. The compressive portion 420 is spaced apart from the B-pillar outer panel 200. That is, when the vehicle B-pillar 10 is subjected to a small pressure, the compressive portion 420 does not need to bear the pressure received by the B-pillar outer panel 200, which can reduce the pressure received by the support plate 400, and thus relieve the metal fatigue of the support plate 400. When the vehicle B-pillar 10 is subjected to a large pressure, the compressive portion 420 approaches the B-pillar outer panel 200 and then abuts against the B-pillar outer panel 200. The abutment between the compressive portion 420 and the B-pillar outer panel 200 indirectly increases the thickness of the B-pillar outer panel 200, and thus enables the support plate 400 and the B-pillar outer panel 200 to jointly resist the received pressure, thereby improving the bending resistance of the vehicle B-pillar 10.

[0041] See Figure 4 and Figure 5 , Figure 4 is a cross-sectional view taken along the A-A direction shown in FIG. 1. Figure 5 is Figure 2 a schematic structural view of an embodiment of the support plate shown in FIG.

[0042] In some embodiments, the gap between the pressure-resistant portion 420 and the outer B-pillar panel 200 is between 3 mm and 8 mm. Since the entire automotive B-pillar 10 is bent towards the interior of the vehicle, when the automotive B-pillar 10 is subjected to pressure, it is the inner B-pillar panel 100 that bends first. The inner B-pillar panel 100 is fixedly connected to the support plate 400. Therefore, the inner B-pillar panel 100 and the support plate 400 bend together. As the pressure gradually increases, the pressure-resistant portion 420 of the support plate 400 gradually abuts against the outer B-pillar panel 200. If the interval between the pressure-resistant portion 420 and the outer B-pillar panel 200 is relatively close or they are in direct contact, it will cause the outer B-pillar panel 200 to frequently collide with the pressure-resistant portion 420 even when subjected to a relatively small pressure, thereby generating noise. If the interval between the pressure-resistant portion 420 and the outer B-pillar panel 200 is large, when subjected to a large pressure, before the pressure-resistant portion 420 abuts against the outer B-pillar panel 200, the inner B-pillar panel 100 will bend first due to excessive pressure, which will cause the entire automotive B-pillar 10 to bend. Therefore, when the interval between the pressure-resistant portion 420 and the outer B-pillar panel 200 is within the range of 3 mm - 8 mm, the contact area between the support plate 400 and the outer B-pillar panel 200 can be reduced, thereby reducing the vibration transmission between the two, reducing the noise generated by the vibration of the automotive B-pillar 10, and improving the structural stability of the automotive B-pillar 10. Exemplarily, the interval between the pressure-resistant portion 420 and the outer B-pillar panel 200 can be 5 mm, which can reduce the noise generated by the automotive B-pillar 10. The support plate 400 can also bear the pressure for the outer B-pillar panel 200 in a timely manner, thereby improving the bending resistance of the automotive B-pillar 10. The interval between the pressure-resistant portion 420 and the outer B-pillar panel 200 can also be 3 mm, 5 mm, 6 mm, 8 mm, etc., or the range formed by any two of the above values, for example, 3 mm - 5 mm, 5 mm - 6 mm, 6 mm - 8 mm, etc.

[0043] In some embodiments, the support plate 400 further includes a welding portion 430 extending along the first direction X. The welding portion 430 is connected to the side of the strengthening portion 410 away from the pressure-resistant portion 420. The welding portion 430 extends outward in the second direction Y relative to the strengthening portion 410. The support plate 400 is fixed to the inner B-pillar panel 100 through the welding portion 430. Specifically, the welding portion 430 is fixedly connected to the bottom wall of the through groove of the inner B-pillar panel 100. The welding portion 430 and the strengthening portion 410 can be integrally formed. The welding portion 430 is equivalent to the part of the strengthening portion 410 extending outward in the second direction Y. Therefore, compared with the strengthening portion 410 being directly fixedly connected to the inner B-pillar panel 100, the contact area between the welding portion 430 and the inner B-pillar panel 100 is larger, so that the support plate 400 is more firmly fixedly connected to the inner B-pillar panel 100, and the pressure transmitted from the inner B-pillar panel 100 to the welding portion 430 can be made more uniform, thereby improving the pressure that the inner B-pillar panel 100 can withstand.

[0044] In some embodiments, the number of welding portions 430 is two, and one welding portion 430 is respectively connected to one reinforcing portion 410. The number of welding portions 430 may be the same as the number of reinforcing portions 410. Specifically, the number of welding portions 430 and reinforcing portions 410 may each be two. The welding portion 430, the reinforcing portion 410, and the compression-resistant portion 420 may be an integral body. The compression-resistant portion 420 is respectively connected to one reinforcing portion 410 on both sides in the second direction Y, and the side of the reinforcing portion 410 away from the compression-resistant portion 420 extends toward the inner panel 100 of the B-pillar. One side of the welding portion 430 close to the compression-resistant portion 420 is connected to the reinforcing portion 410, and the other side extends in the second direction Y with respect to the reinforcing portion 410. Thus, the compression-resistant portion 420 and the two reinforcing portions 410 are fixedly connected to the inner panel 100 of the B-pillar through the two welding portions 430, which can make the structure of the support plate 400 more stable and can withstand greater pressure.

[0045] In some embodiments, the welding portion 430 is provided with a plurality of second protrusions 431 and a plurality of second recesses 432. The plurality of second protrusions 431 and the plurality of second recesses 432 are alternately arranged in the first direction X. The second recess 432 is welded and fixed to the inner panel 100 of the B-pillar, and the second protrusion 431 is arranged at an interval from the inner panel 100 of the B-pillar. The second protrusions 431 and the second recesses 432 of the welding portion 430 are similar in structure to the first protrusions 411 and the first recesses 412 of the reinforcing portion 410. The plurality of second protrusions 431 and the plurality of second recesses 432 are alternately arranged in the first direction X. The welding portion 430 is fixedly connected to the inner panel 100 of the B-pillar through the second recess 432. The alternate arrangement of the plurality of second protrusions 431 and the plurality of second recesses 432 can offset the internal stress of the material of the support plate 400 during stamping to reduce the springback of the support plate 400. Furthermore, when the support plate 400 is welded to the inner panel 100 of the B-pillar, the gap between the welding portion 430 and the inner panel 100 of the B-pillar can be reduced, and the gap between each second recess 432 and the inner panel 100 of the B-pillar can be made similar, so that the welding points between the second recess 432 and the inner panel 100 of the B-pillar are more uniform. After welding and fixing, the welding points themselves will not continuously receive the force generated by the springback of the support plate 400, thereby making the support plate 400 and the inner panel 100 of the B-pillar more firmly fixed. As Figure 5 shown, the dots on the second recess 432 are welding points. The welding points being circular is only for convenience of representation and can be adjusted according to the actual situation.

[0046] In some embodiments, a first protrusion 411 and a second protrusion 431 are correspondingly connected, and a first recess 412 and a second recess 432 are correspondingly connected. A first protrusion 411 of the reinforcing portion 410 corresponds to a second protrusion 431 of the welding portion 430, and a first recess 412 of the reinforcing portion 410 corresponds to a second recess 432 of the welding portion 430, so that there is no structural mutation between the reinforcing portion 410 and the welding portion 430, and a smooth transition can be achieved, thereby improving the structural stability at the transition between the reinforcing portion 410 and the welding portion 430, and further improving the bending resistance of the support plate 400.

[0047] In some embodiments, the dimension of the support plate 400 in the first direction X is between one-fifth and two-fifths of the dimension of the B-pillar inner panel 100 in the first direction X. To give the vehicle body a streamlined appearance, the thickness of the automotive B-pillar 10 gradually decreases in the first direction X from the bottom to the top of the vehicle, and the automotive B-pillar 10 gradually bends towards the interior of the vehicle body, such that the upper part of the automotive B-pillar 10 has a smaller compressive capacity than the lower part. Therefore, the support plate 400 mainly bears the pressure for the upper part of the automotive B-pillar 10. The support plate 400 can be located at the upper part of the automotive B-pillar 10, and the dimension of the support plate 400 in the first direction X can be between one-fifth and two-fifths of the dimension of the B-pillar inner panel 100 in the first direction X. The dimension of the support plate 400 within this range can ensure that the support plate 400 can more effectively bear a large pressure for the B-pillar inner panel 100 and the B-pillar outer panel 200. The dimension of the support plate 400 in the first direction X can be 1 / 5, 1 / 4, 3 / 10, 7 / 20, 2 / 5, etc. of the dimension of the B-pillar inner panel 100 in the first direction X, or a range formed by any two of the above values. For example, 1 / 5 - 1 / 4, 1 / 4 - 3 / 10, 3 / 10 - 7 / 20, 7 / 20 - 2 / 5, etc.

[0048] In some embodiments, the dimension of the support plate 400 in the first direction X is between 220 mm and 280 mm. While ensuring that the support plate 400 can effectively bear the pressure received by the B-pillar inner panel 100 and the B-pillar outer panel 200, it is also necessary to minimize the weight of the support plate 400 as much as possible to achieve vehicle lightweighting. Therefore, the dimension of the support plate 400 in the first direction X within the above range can ensure that the weight of the support plate 400 is small, and it can also effectively support between the B-pillar inner panel 100 and the B-pillar outer panel 200. The dimension of the support plate 400 in the first direction X can be 220 mm, 235 mm, 250 mm, 265 mm, 280 mm, etc., or a range formed by any two of the above values. For example, 220 mm - 235 mm, 235 mm - 250 mm, 250 mm - 265 mm, 265 mm - 280 mm, etc.

[0049] In summary, the support plate 400 is located in the energy absorption cavity 300 formed by the inner B-pillar panel 100 and the outer B-pillar panel 200, and the support plate 400 is fixedly connected to the inner B-pillar panel 100. A plurality of first protrusions 411 and a plurality of first depressions 412 are alternately arranged along the first direction X on the reinforcing portion 410 of the support plate 400, so as to improve the top bending resistance of the B-pillar and enhance the safety of passengers and drivers.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application, and they should all be covered by the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A B-pillar for an automobile, characterized in that: The car B-pillar includes: A B-pillar inner plate, extending along a first direction; A B-pillar outer panel connected to the B-pillar inner panel, the B-pillar outer panel extending along the first direction, the B-pillar outer panel and the B-pillar inner panel cooperate to form an energy absorption cavity extending along the first direction; A support plate is located in the energy absorption cavity, the support plate is fixedly connected to the B-pillar inner plate and is spaced apart from the B-pillar outer plate, the support plate includes a reinforcement portion extending along the first direction, the reinforcement portion is provided with a plurality of first protrusions and a plurality of first recesses, and the plurality of first protrusions and the plurality of first recesses are alternately arranged along the first direction.

2. The automobile B-pillar according to claim 1, characterized in that: There are two reinforcing parts, and the support plate includes an anti-pressure part extending along the first direction. The two reinforcing parts are located on both sides of the anti-pressure part in a second direction perpendicular to the first direction. The anti-pressure part connects the two reinforcing parts respectively, and the anti-pressure part is spaced apart from the B-pillar outer panel and the B-pillar inner panel.

3. The automobile B-pillar according to claim 2, characterized in that: The gap between the anti-pressure portion and the B-pillar outer panel is between 3 mm and 8 mm.

4. The automobile B-pillar according to claim 2, characterized in that: The support plate also includes a welding portion extending along the first direction, the welding portion is connected to the side of the reinforcement portion away from the pressure-resistant portion, the welding portion extends outwardly in the second direction relative to the reinforcement portion, and the support plate is fixed to the B-pillar inner plate through the welding portion.

5. The automobile B-pillar according to claim 4, characterized in that: The number of the welding parts is two, and one welding part is respectively connected to one of the reinforcing parts.

6. The automobile B-pillar according to claim 4, characterized in that: The welding portion is provided with a plurality of second protrusions and a plurality of second recesses, the plurality of second protrusions and the plurality of second recesses are alternately arranged along the first direction, the second recesses are welded and fixed to the B-pillar inner panel, and the second protrusions are spaced apart from the B-pillar inner panel.

7. The automobile B-pillar according to claim 6, characterized in that: One of the first protrusions is connected to one of the second protrusions, and one of the first recessed portion is connected to one of the second recessed portion.

8. The automobile B-pillar according to any one of claims 1 to 7, characterized in that: The size of the support plate in the first direction is between one fifth and two fifths of the size of the B-pillar inner plate in the first direction.

9. The automobile B-pillar according to any one of claims 1 to 7, characterized in that: The dimension of the support plate in the first direction is between 220 mm and 280 mm.

10. A vehicle, characterized in that: The vehicle comprises the automobile B-pillar as described in any one of claims 1-9.

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