Column B force transmission structure and vehicle

Abstract

The utility model provides a B column force transmission structure and a vehicle. The B-pillar force transmission structure comprises a B-pillar reinforcing plate and a reinforcing plate reinforcing plate which are arranged in a B-pillar inner cavity formed between a side wall outer plate and a B-pillar inner plate; the B column reinforcing plate comprises a top section, an edge beam section and a main body section which are sequentially connected from top to bottom, the top section is in lap joint with the top cover cross beam, and the edge beam section is located at the top cover edge beam; the reinforcing plate reinforcing plate is arranged on the side, back to the side wall outer plate, of the B column reinforcing plate and connected between the top section and the main body section. According to the B column force transmission structure, the reinforcing plate reinforcing plate is additionally arranged between the top section and the main body section of the B column reinforcing plate, so that a force transmission path is additionally arranged between the top cover cross beam and the automobile B column besides the original side wall outer plate, the B column reinforcing plate and the B column inner plate; and the structural strength and the force transmission smoothness of the top of the B column are remarkably enhanced, so that the force transmission performance of the top of the B column of the automobile is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structure, and in particular to a B-pillar force transmission structure. In addition, the utility model also relates to a vehicle. Background Art

[0002] With the development of society, users' awareness of the safety performance of the whole vehicle has gradually increased, and improving the strength of the vehicle body has also become an important issue in vehicle body design.

[0003] The B-pillar is a key force transmission channel in the vehicle body, and its strength and structure have a particularly important impact on the entire vehicle. The top structure of the conventional B-pillar may bend under a strong impact, resulting in a blocked force transmission channel of the B-pillar. When the vehicle is involved in a side collision or top pressure accident, stress concentration is prone to occur at the top of the B-pillar, which may cause bending, breaking, etc., causing serious damage to the vehicle. Utility Model Content

[0004] In view of this, the utility model aims to provide a B-pillar force transmission structure to improve the force transmission performance of the top of the B-pillar of an automobile.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A B-pillar force transmission structure comprises a B-pillar reinforcement plate and a reinforcement plate patch arranged in a B-pillar inner cavity formed between a side panel outer plate and a B-pillar inner plate; the B-pillar reinforcement plate comprises a top section, a side beam section and a main body section which are connected in sequence from top to bottom, the top section is overlapped and connected to a roof cross beam, and the side beam section is located at the roof side beam; the reinforcement plate patch is arranged on a side of the B-pillar reinforcement plate which is away from the side panel outer plate, and is connected between the top section and the main body section.

[0007] Furthermore, a groove is formed at the top of the side outer panel which constitutes the top cover side beam, and the side beam section is arranged to protrude toward the inside of the groove; the reinforcing plate patch has an upper overlapping section, a supporting section and a lower overlapping section which are connected in sequence from top to bottom, the upper overlapping section overlaps the top section, the lower overlapping section overlaps the main section, and a chamber is formed between the supporting section and the side beam section.

[0008] Furthermore, the length of the lower overlapping section overlapping the main section is less than 200 mm.

[0009] Furthermore, the upper overlapping section, the top section, the top edge of the side outer panel, and the end of the top cover crossbeam are stacked together and fixedly connected by multi-layer welding.

[0010] Furthermore, the length of the upper overlapping section overlapping the top section is more than 15 mm, and the width of the upper overlapping section is between 100 mm and 120 mm.

[0011] Furthermore, the angle between the side beam section and the main body section is 100° to 120°.

[0012] Furthermore, the upper overlapping section is bent relative to the upper overlapping section, and the angle between the upper overlapping section and the supporting section is 110° to 130°.

[0013] Furthermore, the reinforcing plate patch is made of hot-formed high-strength steel, and the thickness of the reinforcing plate patch is 1.0 mm to 3.0 mm.

[0014] Furthermore, the top of the B-pillar inner panel is bent to form an upper side beam inner panel, and the upper side beam inner panel is connected to the end of the roof cross beam; the B-pillar force transmission structure also includes a side panel connecting plate arranged on the side of the B-pillar inner panel facing the interior of the vehicle, and the two ends of the side panel connecting plate are respectively connected to the roof cross beam and the B-pillar inner panel, and a cavity is formed between the side panel connecting plate and the upper side beam inner panel.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The B-pillar force transmission structure of the present invention adds a reinforcing plate supplementary plate between the top section and the main section of the B-pillar reinforcement plate, thereby adding another force transmission path between the roof crossbeam and the B-pillar of the automobile in addition to the original side panel outer panel, the B-pillar reinforcement plate, and the B-pillar inner panel, which has a prominent enhancement effect on the structural strength and force transmission smoothness of the top of the B-pillar, thereby facilitating the improvement of the force transmission performance of the top of the B-pillar of the automobile.

[0017] In addition, based on the setting of the profile groove on the side outer panel, the side beam section of the B-pillar reinforcement plate is set to be bent and protrude into the profile groove, so that a chamber can be formed between the side beam section and the support section. The side beam section and the support section form a structure similar to an arch bridge. The support section adopts a straight plate structure to disperse the stress at the bent part of the side beam section, which is beneficial to enhancing the force transmission stability of the B-pillar reinforcement plate and the reinforcement plate supplement plate.

[0018] Another object of the present invention is to provide a vehicle, wherein the B-pillar of the vehicle adopts the B-pillar force transmission structure of the present invention. The vehicle of the present invention has the technical advantages possessed by the above-mentioned B-pillar force transmission structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention. The directional terms such as front and back, top and bottom involved therein are only used to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

[0020] Figure 1 An exploded view of the components related to the B-pillar force transmission structure according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the B-pillar force transmission structure according to an embodiment of the utility model after the side panel connecting plate and the B-pillar inner panel are hidden;

[0022] Figure 3 for Figure 2 A partial enlarged view of the part shown in A;

[0023] Figure 4 This is a structural schematic diagram of a reinforcing plate patch according to an embodiment of the utility model;

[0024] Figure 5 It is a cross-sectional view of the B-pillar force transmission structure described in an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1. Side panel outer plate; 2. B-pillar reinforcement plate; 3. Top cover outer plate; 4. Top cover crossbeam; 5. Side panel connecting plate; 6. Top beam inner plate; 7. B-pillar inner plate; 8. Reinforcement plate patch; 9. B-pillar inner cavity;

[0027] 20, top section; 21, side beam section; 22, main section; 80, upper lap section; 81, support section; 82, lower lap section;

[0028] 100, groove; 200, chamber; 500, cavity. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0030] In the description of the present invention, it should be stated that if there are terms indicating directions or positional relationships such as "up, down, left, right, front, back, inside, outside", etc., they are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed or operate in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0031] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] Embodiment 1

[0034] This embodiment relates to a B-pillar force transmission structure, which can improve the force transmission performance of the top of the B-pillar of an automobile; an exemplary structure thereof is as follows Figures 1 to 5 shown.

[0035] In general, the B-pillar force transmission structure includes a B-pillar reinforcement plate 2 and a reinforcement plate patch 8 disposed in a B-pillar inner cavity 9 formed between a side panel outer panel 1 and a B-pillar inner panel 7. The B-pillar reinforcement plate 2 includes a top section 20, a side beam section 21 and a main body section 22 connected in sequence from top to bottom, the top section 20 is overlapped and connected to the roof cross beam 4, and the side beam section 21 is located at the roof side beam; the reinforcement plate patch 8 is disposed on the side of the B-pillar reinforcement plate 2 facing away from the side panel outer panel 1, and is connected between the top section 20 and the main body section 22.

[0036] Specifically, when setting the reinforcing plate patch 8, the reinforcing plate patch 8 can be pre-welded with the B-pillar reinforcing plate 2 as a whole, and then welded with the side outer panel 1, the roof cross beam 4 and the B-pillar inner panel 7 and other sheet metal. Specifically, the upper lap section 80, the top section 20, the top edge of the side outer panel 1, and the end of the roof cross beam 4 are stacked together and fixedly connected by multi-layer welding. Of course, the edge of the roof outer panel 3 also needs to be welded with the above-mentioned components. The above-mentioned components overlap at the end of the roof cross beam 4, and are fixedly connected by multi-layer spot welding, which is convenient for assembly operation and can ensure the firmness of the connection between the components.

[0037] The material of the reinforcing plate patch 8 is preferably hot-formed high-strength steel, and the plate thickness of the reinforcing plate patch 8 can be controlled between 1.0 mm and 3.0 mm, preferably set to 2.0 mm. The reinforcing plate patch 8 is made of high-strength steel by hot pressing, which has good strength performance. Controlling it within an appropriate thickness range can reduce its weight while ensuring its force transmission performance.

[0038] In order to produce the appearance of the side beam of the automobile roof, the side outer panel 1 is usually provided with a groove 100 to make the appearance of the side beam of the roof full and beautiful. Based on the above situation, in this embodiment, the top of the side outer panel 1 that constitutes the side beam of the roof is formed with a groove 100, and the side beam section 21 is protruded toward the inside of the groove 100; the reinforcing plate patch 8 has an upper lap section 80, a support section 81 and a lower lap section 82 that are connected in sequence from top to bottom, the upper lap section 80 is overlapped on the top section 20, and the lower lap section 82 is overlapped on the main section 22, and a chamber 200 is formed between the support section 81 and the side beam section 21.

[0039] By setting the side beam section 21 of the B-pillar reinforcement plate 2 to be bent and protruding into the groove 100, a chamber 200 can be formed between the side beam section 21 and the support section 81. The side beam section 21 and the support section 81 form a structure similar to an arch bridge. The support section 81 adopts a straight plate structure to disperse the stress at the bent part of the side beam section 21, which is beneficial to enhancing the force transmission stability of the B-pillar reinforcement plate 2 and the reinforcement plate patch 8.

[0040] There are of course many design styles for the specific structural form and size of the reinforcing plate patch 8. Figure 4 and Figure 5 As shown, the length L of the lower lap section 82 lapped on the main section 22 is less than 200 mm. Under the premise of ensuring the connection strength between the main section 22 and the lower lap section 82, the lap length L of the lower lap section 82 is controlled to be less than 200 mm, which can effectively reduce the weight of the reinforcing plate patch 8.

[0041] The length H of the upper overlap section 80 overlapped on the top section 20 is more than 15 mm, and the width W of the upper overlap section 80 is between 100 mm and 120 mm. Setting a reasonable size for the upper overlap section 80 can not only ensure the reliability of the overlap connection between the upper overlap section 80 and the top section 20, but also provide a layout space for the spot welding between the upper overlap section 80 and the top section 20. When welding, three welding points can be arranged so that the reinforcing plate patch 8 has sufficient connection firmness and support effect, ensuring the smoothness of its force transmission.

[0042] In addition, if Figure 5 As shown, the upper overlap section 80 of the reinforcing plate patch 8 is bent relative to the upper overlap section 80, based on the bending between the side beam section 21 and the main section 22 of the B-pillar reinforcing plate 2, and between the upper overlap section 80 and the support section 81 of the reinforcing plate patch 8. Preferably, the angle between the side beam section 21 and the main section 22 is controlled between 100° and 120°, preferably set to 112°; the angle between the upper overlap section 80 and the support section 81 is controlled between 110° and 130°, preferably set to 122°.

[0043] Based on the bending condition of the side beam section 21, an angle is inevitably formed between the side beam section 21 and the main section 22. By controlling the angle a within a reasonable range, the smoothness of the lifting and force transmission of the B-pillar reinforcement plate 2 can be ensured. Similarly, by controlling the angle b between the upper lap section 80 and the supporting section 81 of the reinforcement plate patch 8 within a range of 110° to 130°, the situation in which the reinforcement plate patch 8 is subjected to excessive force and may bend can be reduced, thereby improving the smoothness of its force transmission.

[0044] In addition, if Figure 1 Combined with Figure 5As shown, the top of the B-pillar inner plate 7 is bent to form an upper side beam inner plate 6, and the upper side beam inner plate 6 is connected to the end of the roof cross beam 4. At the same time, the B-pillar force transmission structure of this embodiment also includes a side panel connecting plate 5 provided on the side of the B-pillar inner plate 7 facing the interior of the vehicle, and the two ends of the side panel connecting plate 5 are respectively connected to the roof cross beam 4 and the B-pillar inner plate 7, and a cavity 500 is formed between the side panel connecting plate 5 and the upper side beam inner plate 6.

[0045] A side panel connecting plate 5 is provided on the inner side of the B-pillar inner plate 7. The side panel connecting plate 5 can cover the upper side beam inner plate 6 to the inside to keep the interior of the cockpit clean and tidy. At the same time, the side panel connecting plate 5 can play a good structural reinforcement effect on the connection between the B-pillar inner plate 7 and the roof crossbeam 4. The setting of the cavity 500 between the side panel connecting plate 5 and the upper side beam inner plate 6 is beneficial to improving the stability of the structure. The side panel connecting plate 5 adds another path for transmitting force at the top of the B-pillar, thereby further improving the structural performance and force transmission performance of the top of the B-pillar.

[0046] In summary, the B-pillar force transmission structure of the present embodiment, by adding a reinforcing plate patch 8 between the top section 20 and the main section 22 of the B-pillar reinforcement plate 2, adds another force transmission path between the roof cross beam 4 and the automobile B-pillar in addition to the original side panel outer panel 1, the B-pillar reinforcement plate 2, and the B-pillar inner panel 7, which has a prominent enhancement effect on the structural strength and force transmission smoothness of the top of the B-pillar, thereby helping to improve the force transmission performance of the top of the automobile B-pillar.

[0047] Embodiment 2

[0048] This embodiment relates to a vehicle, the B-pillar of the vehicle adopts the B-pillar force transmission structure provided in the first embodiment.

[0049] Since the left and right B-pillars of the automobile form a ring structure with the roof cross beam 4 and the lower body, when the vehicle collides from the side, the force is transmitted along the B-pillar to the roof cross beam 4 and the lower body, thereby resisting the impact of external forces; therefore, the force transmission performance of the B-pillar has an important impact on the safety of the vehicle. By setting a reinforcing plate patch 8 on the B-pillar reinforcement plate 2, a force transmission channel is added to the top of the B-pillar. By cleverly designing the structural shape of the reinforcing plate patch 8 and the B-pillar reinforcement plate 2, the problem of stress concentration easily occurring at the side beam section 21 of the B-pillar reinforcement plate 2 is well eliminated; thereby making the force transmission performance of the B-pillar more reliable and improving the smoothness of force transmission. By improving the force transmission performance of the B-pillar, the improvement effect on the vehicle body rigidity, torsion and bending performance is also very obvious.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A B-pillar force transmission structure, characterized in that: It comprises a B-pillar reinforcement plate (2) and a reinforcement plate supplement plate (8) which are arranged in a B-pillar inner cavity (9) formed between a side panel outer plate (1) and a B-pillar inner plate (7); The B-pillar reinforcement plate (2) comprises a top section (20), a side beam section (21) and a main section (22) which are connected in sequence from top to bottom, the top section (20) is overlapped and connected to the roof cross beam (4), and the side beam section (21) is located at the roof side beam; The reinforcing plate patch (8) is arranged on the side of the B-pillar reinforcing plate (2) facing away from the side outer plate (1), and is connected between the top section (20) and the main body section (22).

2. The B-pillar force transmission structure according to claim 1, characterized in that: A groove (100) is formed at the top of the side outer plate (1) forming a roof side beam, and the side beam section (21) is arranged to protrude toward the inside of the groove (100); The reinforcing plate patch (8) comprises an upper overlapping section (80), a supporting section (81) and a lower overlapping section (82) which are connected in sequence from top to bottom, the upper overlapping section (80) is overlapped on the top section (20), the lower overlapping section (82) is overlapped on the main section (22), and a chamber (200) is formed between the supporting section (81) and the side beam section (21).

3. The B-pillar force transmission structure according to claim 2, characterized in that: The length of the lower overlapping section (82) overlapping the main section (22) is less than 200 mm.

4. The B-pillar force transmission structure according to claim 2, characterized in that: The upper overlapping section (80), the top section (20), the top edge of the side outer panel (1), and the end of the top cover crossbeam (4) are stacked together and fixedly connected by multi-layer welding.

5. The B-pillar force transmission structure according to claim 2, characterized in that: The length of the upper overlapping section (80) overlapping the top section (20) is greater than 15 mm, and the width of the upper overlapping section (80) is between 100 mm and 120 mm.

6. The B-pillar force transmission structure according to claim 2, characterized in that: The included angle between the side beam section (21) and the main body section (22) is 100° to 120°.

7. The B-pillar force transmission structure according to claim 2, characterized in that: The upper overlapping section (80) is bent relative to the upper overlapping section (80), and the angle between the upper overlapping section (80) and the supporting section (81) is 110° to 130°.

8. The B-pillar force transmission structure according to any one of claims 1 to 7, characterized in that: The reinforcing plate patch (8) is made of hot-formed high-strength steel, and the plate body thickness of the reinforcing plate patch (8) is 1.0 mm to 3.0 mm.

9. The B-pillar force transmission structure according to any one of claims 1 to 7, characterized in that: The top of the B-pillar inner plate (7) is bent to form an upper side beam inner plate (6), and the upper side beam inner plate (6) is connected to the end of the roof cross beam (4); The B-pillar force transmission structure also includes a side panel connecting plate (5) arranged on the side of the B-pillar inner plate (7) facing the interior of the vehicle, the two ends of the side panel connecting plate (5) are respectively connected to the roof crossbeam (4) and the B-pillar inner plate (7), and a cavity (500) is formed between the side panel connecting plate (5) and the upper side beam inner plate (6).

10. A vehicle, characterized in that: The B-pillar of the vehicle adopts the B-pillar force transmission structure according to any one of claims 1 to 9.

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