Vehicle body D column joint structure and vehicle

Abstract

The utility model relates to the technical field of vehicle body structures, in particular to a vehicle body D column connector structure and a vehicle. The automobile body D column connector structure comprises a D column inner plate and a D column upper reinforcing assembly, the D column upper reinforcing assembly is provided with an adaptive part with a relatively narrowed shape, the adaptive part and a combining part define a cavity area with the through interior, and the adaptive part is further provided with a structure reinforcing belt. The D column upper reinforcing assembly is arranged, the shape of the adaptive part on the side, close to the D column upper reinforcing assembly, of the D column upper reinforcing assembly is set to be relatively narrowed, and the structural reinforcing belt is arranged on the part, so that the connecting strength of the connecting part can be increased, a metal plate structure is not prone to cracking at the part, and the strength of the D column of the automobile body can be guaranteed; meanwhile, internal components at the joints are omitted, so that the vehicle body D column can apply a single total assembly technology, a flexible total assembly route is achieved, a cavity area is formed, it is guaranteed that force transmission of the D column is complete, the torsional mode of a vehicle body is improved, and therefore the performance of the vehicle body is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle body structures, and particularly to a vehicle body D-pillar joint structure and a vehicle. Background Art

[0002] Vehicles are mainly used for transporting goods, passengers, etc. The vehicle body structure is formed by a white vehicle body, including a vehicle body D-pillar. The vehicle body D-pillar mainly functions to support the roof, and together with the A-pillar, B-pillar, and C-pillar of the vehicle body, it can protect the passenger compartment from deforming and avoid casualties to the vehicle occupants in case of accidents. Moreover, the D-pillar structure of the vehicle body will affect the torsional mode of the vehicle body. However, in the existing technology, the D-pillar structure of the vehicle has problems such as easy cracking of the sheet metal at the connection and poor torsional mode of the vehicle body. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a vehicle body D-pillar joint structure that can improve the torsional mode of the vehicle body and whose sheet metal structure at the connection is not easily broken.

[0004] To solve the above technical problems, the present application provides the following technical solutions:

[0005] A vehicle body D-pillar joint structure, the vehicle body D-pillar joint structure includes: an inner D-pillar panel, a part of the area of the inner D-pillar panel is a joint part; a D-pillar upper strengthening component, which is a plate-like structure with undulations in shape as a whole. The D-pillar upper strengthening component and the inner D-pillar panel are fastened and fixed to each other. The D-pillar upper strengthening component has an adaptation part with a relatively narrowed shape at a position adjacent to its own side. The adaptation part and the joint part are opposite in position and enclose an internally through cavity area, and the adaptation part is also provided with a structural reinforcement belt.

[0006] It can be understood that by setting the D-pillar upper strengthening component in the present application, the shape of the adaptation part adjacent to its own side of the D-pillar upper strengthening component is set to be relatively narrowed, and a structural reinforcement belt is provided at this part, which can not only increase the connection strength of this connection part and make the sheet metal structure not easily crack at this place, but also ensure the self-strength of the vehicle body D-pillar; at the same time, the internal components at the connection are omitted, so that the vehicle body D-pillar can use the single general assembly technology to realize a flexible general assembly route, and the adaptation part and the joint part of the D-pillar upper strengthening component are combined to enclose an internally through cavity area, ensuring the complete force transmission of the D-pillar and improving the torsional mode of the vehicle body, thereby improving the vehicle body performance.

[0007] In one embodiment, the outer edge of the D-pillar upper strengthening component has a flanging part, and the flanging part is attached to the joint part; the flanging part is arranged continuously or at intervals along the D-pillar upper strengthening component.

[0008] It can be understood that the arrangement of the hemming part facilitates the connection between the internal structure of the reinforcement component on the D-pillar and the inner panel of the D-pillar, making the processing of the white body more convenient.

[0009] In one embodiment, the fitting part has a length direction, and the structural reinforcement belt extends along the width direction of the fitting part; the structural reinforcement belts are arranged at intervals or continuously penetrate the entire fitting part along the width direction of the fitting part.

[0010] It can be understood that when the structural reinforcement belt extends to the entire fitting part, the connection strength at the joint of the fitting part of the reinforcement component on the D-pillar can be increased, that is, the risk of cracking in the sheet metal heat-affected zone can be avoided.

[0011] In one embodiment, the structural reinforcement belt has a double-layer structure and / or forms a reinforcing rib by folding.

[0012] It can be understood that both the double-layer structure and the reinforcing rib can improve the rigidity of the structure, further making the position where they are located not easily cracked or broken, and improving the structural strength of the D-pillar of the vehicle body.

[0013] In one embodiment, the reinforcement component on the D-pillar includes: an upper reinforcement plate of the D-pillar, one side of the upper reinforcement plate of the D-pillar provides a part of the fitting part; a middle joint of the D-pillar, which is connected to one side of the upper reinforcement plate of the D-pillar and provides the remaining part of the fitting part. The edges of the middle joint of the D-pillar and the upper reinforcement plate of the D-pillar overlap and are fixed to each other at the connection part, forming a double-layer structure at the overlapping part and serving as the structural reinforcement belt.

[0014] It can be understood that the upper reinforcement plate of the D-pillar overlaps with the middle joint of the D-pillar and is connected through the structural reinforcement belt to form a multi-layer structure, further strengthening the structure at the joint and further avoiding the risk of sheet metal cracking at this place.

[0015] In one embodiment, at the overlapping part, the middle joint of the D-pillar is laminated on the outside of the upper reinforcement plate of the D-pillar.

[0016] In one embodiment, at the overlapping part, both the middle joint of the D-pillar and the upper reinforcement plate of the D-pillar have hemming parts, and the hemming parts of the two overlap with the inner panel of the D-pillar to form a three-layer structure.

[0017] It can be understood that the middle joint of the D-pillar and the upper reinforcement plate of the D-pillar can be connected through the hemming part and overlap with the inner panel of the D-pillar to form a three-layer structure, further strengthening the connection structure of the three, and meeting the requirements of the structural strength of the D-pillar of the vehicle body.

[0018] In one embodiment, the overlapping part between the hemming part and the inner panel of the D-pillar, and between the middle joint of the D-pillar and the upper reinforcement plate of the D-pillar is fixed by single-piece total-patch welding.

[0019] It is understandable that the setting of single general assembly welding and fixing meets the production requirements of the flexible general assembly route of the production base of the vehicle body D-pillar, simplifies the production line structure requirements for D-pillar production, and reduces production costs.

[0020] The present application also provides the following technical solutions:

[0021] A vehicle body D-pillar includes the vehicle body D-pillar joint structure in any of the above embodiments.

[0022] The present application also provides the following technical solutions:

[0023] A vehicle includes the vehicle body D-pillar in any of the above embodiments.

[0024] Compared with the prior art, in the vehicle body D-pillar joint structure, by providing a D-pillar upper strengthening component, the shape of the fitting part on the side adjacent to itself of the D-pillar upper strengthening component is set to be relatively narrowed, and a structural reinforcement belt is provided at this part, which can not only increase the connection strength of this connection part and prevent the sheet metal structure from cracking at this place, but also ensure the self-strength of the vehicle body D-pillar; at the same time, the internal components at the connection are omitted, enabling the vehicle body D-pillar to use the single general assembly technology to achieve a flexible general assembly route, and the fitting part and the joint part of the D-pillar upper strengthening component are combined to enclose an internally through cavity area, ensuring the complete force transmission of the D-pillar and improving the torsional mode of the vehicle body, thereby improving the vehicle body performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic diagram of the vehicle body D-pillar joint structure provided by the present application.

[0027] Figure 2 It is a schematic diagram of the D-pillar upper strengthening component structure provided by the present application.

[0028] Figure 3 Provided by the present application Figure 2 The partial enlarged view at A in

[0029] Figure 4 It is a line schematic diagram of the vehicle body D-pillar joint structure provided by the present application.

[0030] The reference numerals of each component are as follows:

[0031] 100. Body D-pillar joint structure; 10. Inner D-pillar panel; 11. Joint part; 20. Upper D-pillar strengthening component; 21. Adaptation part; 211. Structural reinforcement band; 22. Cavity; 23. Flanging part; 24. Upper D-pillar reinforcement plate; 25. Middle D-pillar joint; 26. Three-layer structure. Detailed implementation manners

[0032] To make the above objects, features and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0033] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first feature is in direct contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meanings as those commonly understood by those skilled in the technical field to which this application pertains. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the related listed items.

[0037] Please refer to Figure 1 and Figure 4 , this application provides a body D-pillar joint structure 100, which is applied to the composition of the D-pillar structure of the body and is mainly used to connect D-pillar structural components to improve the torsional mode of the body, strengthen the sheet metal structure at the D-pillar connection, avoid the risk of cracking, and improve the body performance.

[0038] As Figures 1 to 4 shown, the body D-pillar joint structure 100 includes a D-pillar inner panel 10 and a D-pillar upper reinforcement assembly 20. Among them, a part of the area of the D-pillar inner panel 10 is a joint portion 11; the D-pillar upper reinforcement assembly 20 is generally a plate-like structure with shape undulations. The D-pillar upper reinforcement assembly 20 and the D-pillar inner panel 10 are fastened and fixed to each other. The D-pillar upper reinforcement assembly 20 has an adaption portion 21 with a relatively narrowed shape at a position adjacent to its own side. The adaption portion 21 and the joint portion 11 are opposite in position and enclose an internally through cavity 22 area. The adaption portion 21 is also provided with a structural reinforcement band 211.

[0039] It should be noted that the D-pillar structure of the vehicle body is composed of the upper D-pillar reinforcement component 20 connected to the inner D-pillar plate 10. When the upper D-pillar reinforcement component 20 is welded to the inner D-pillar plate 10, a support plate needs to be arranged inside the connection structure between the two to enhance the structural strength. However, the support plate arranged inside can only be connected by welding, and at the position of the heat-affected zone of the welding connection, the sheet metal becomes thinner, there is a risk of cracking during the intensive road test, and the torsional modal performance of the vehicle body is reduced; at the same time, with such a structural arrangement, the D-pillar of the vehicle body can only adopt the double-gathering process on the production line, and cannot meet the flexible gathering route. In the present application, by arranging the upper D-pillar reinforcement component 20, the shape of the adaptation part on the side of the upper D-pillar reinforcement component 20 adjacent to itself is set to be relatively narrowed, and a structural reinforcement belt 211 is arranged at this part, which can not only increase the connection strength of this connection part, and the sheet metal structure is not easy to crack at this place, but also ensure the self-strength of the D-pillar of the vehicle body; at the same time, the internal components at the connection are omitted, so that the D-pillar of the vehicle body can use the single-gathering technology to realize the flexible gathering route, effectively solving the problem of the trouble of switching routes on the same production line, and enclosing the joint part 11 of the adaptation part 21 of the upper D-pillar reinforcement component 20 and the inner D-pillar plate 10 to form an internally through cavity 22 area, effectively transmitting the force generated by the vehicle body torsion in the D-pillar, ensuring the integrity of the force transmission of the D-pillar, and significantly improving the torsional mode of the vehicle body, thereby improving the vehicle body performance.

[0040] Here, as Figure 2 shown, the adaptation part 21 is relatively narrowed along the direction from a1 to a2, so as to moderately reduce the vehicle body weight while ensuring that the D-pillar structure meets the vehicle body weight requirements, thereby further improving the vehicle body performance.

[0041] Preferably, the inner D-pillar plate 10 and the upper D-pillar reinforcement component 20 can be spot-welded and / or welded. In an embodiment, when the inner D-pillar plate 10 and the upper D-pillar reinforcement component 20 are spot-welded, the torsional mode of the white vehicle body is 39.32 Hz, and the torsional mode of the vehicle body is significantly improved.

[0042] In an embodiment, please refer to Figure 1 and Figure 3 , the adaptation part 21 has a length direction y, and the structural reinforcement belt 211 extends along the width direction x of the adaptation part 21; the structural reinforcement belt 211 is arranged at intervals or continuously penetrates the entire adaptation part 21 along the width direction x of the adaptation part 21. The structural reinforcement belt 211 extending to the entire adaptation part 21 can effectively supplement the sheet metal thickness of the adaptation part 21, thicken the structure of this connection area, thereby weakening the phenomenon of sheet metal thinning caused by the heat influence during welding, thus avoiding the occurrence of sheet metal brittle cracking and improving the vehicle body performance.

[0043] Furthermore, the structural reinforcement belt 211 has a double-layer structure and / or forms reinforcing ribs by folding. In this way, the rigidity of the structure is improved through the double-layer structure and / or the reinforcing rib structure, further making the connection position not easily disconnected and enhancing the structural strength of the vehicle body D-pillar.

[0044] As Figure 1 shown, the outer edge of the upper reinforcement component 20 of the D-pillar has a flanging part 23, and is attached to the joint part 11 through the flanging part 23; the flanging part 23 is arranged continuously or at intervals along the upper reinforcement component 20 of the D-pillar. The flanging part 23 facilitates the mutual connection between the upper reinforcement component 20 of the D-pillar and the inner panel 10 of the D-pillar.

[0045] Please continue to refer to Figure 1 and Figure 3 also visible Figure 4 As shown, the upper reinforcement component 20 of the D-pillar includes an upper reinforcement plate 24 of the D-pillar and a middle joint 25 of the D-pillar. One side of the upper reinforcement plate 24 of the D-pillar provides a part of the fitting part 21; the middle joint 25 of the D-pillar is connected to one side of the upper reinforcement plate 24 of the D-pillar and provides the remaining part of the fitting part 21. The middle joint 25 of the D-pillar and the upper reinforcement plate 24 of the D-pillar are mutually overlapped and fixed at the edge of the connection part, and form a double-layer structure at the overlapping part and serve as the structural reinforcement belt 211. In this way, the structure of the connection part can be further strengthened, and the sheet metal cracking in the heat-affected zone can be further avoided.

[0046] Exemplarily, at the overlapping part, the middle joint 25 of the D-pillar is laminated on the outside of the upper reinforcement plate 24 of the D-pillar. The middle joint 25 of the D-pillar being laminated on the outside of the upper reinforcement plate 24 of the D-pillar enables spot welding and / or brazing connection between the two, so that it can meet the production line requirements of single general assembly and double general assembly, and realize flexible general assembly.

[0047] Furthermore, at the overlapping part, both the middle joint 25 of the D-pillar and the upper reinforcement plate 24 of the D-pillar have flanging parts 23, and the flanging parts 23 of the two are laminated with the inner panel 10 of the D-pillar to form a three-layer structure 26. It can be understood that the middle joint 25 of the D-pillar and the upper reinforcement plate 24 of the D-pillar can be connected through the flanging part 23 and laminated with the inner panel 10 of the D-pillar to form a three-layer structure 26, further strengthening the connection structure of the three, and meeting the requirements of the structural strength of the vehicle body D-pillar.

[0048] In one embodiment, the overlapping parts between the flanging part 23 and the inner panel 10 of the D-pillar, and between the middle joint 25 of the D-pillar and the upper reinforcement plate 24 of the D-pillar are fixed by single general assembly welding. Single general assembly welding can be applicable to the brazing connection form, further increasing the adaptability of the production line and meeting the technical requirements of flexible general assembly.

[0049] The present application also provides a vehicle body D-pillar, and the vehicle body D-pillar includes the vehicle body D-pillar joint structure 100 in any of the above embodiments.

[0050] The present application further provides a vehicle, which includes the body D-pillar in any of the above embodiments.

[0051] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0052] The above embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed. However, it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A vehicle body D-pillar joint structure, characterized in that: The vehicle body D-pillar joint structure comprises: A D-pillar inner panel (10), wherein a portion of the D-pillar inner panel (10) is a joint portion (11); The D-pillar upper reinforcement component (20) is a plate-like structure with an undulating shape as a whole. The D-pillar upper reinforcement component (20) and the D-pillar inner plate (10) are interlocked and fixed to each other. The D-pillar upper reinforcement component (20) has a relatively narrowed adapter portion (21) at a position adjacent to one side thereof. The adapter portion (21) and the connecting portion (11) are positioned opposite to each other and enclose an internally continuous cavity (22) region. The adapter portion (21) is also provided with a structural reinforcement belt (211).

2. The vehicle body D-pillar joint structure according to claim 1, characterized in that: The outer edge of the D-pillar upper reinforcement component (20) has a folded edge portion (23), and is fitted with the joint portion (11) through the folded edge portion (23); The folded edge portions (23) are arranged continuously or at intervals along the D-pillar upper reinforcement component (20).

3. The vehicle body D-pillar joint structure according to claim 1, characterized in that: The adapting portion (21) has a length direction, and the structural reinforcement belt (211) extends along the width direction of the adapting portion (21); The structural reinforcement belts (211) are arranged at intervals along the width direction of the adapting portion (21) or continuously pass through the entire adapting portion (21).

4. The vehicle body D-pillar joint structure according to claim 1, characterized in that: The structural reinforcement belt (211) has a double-layer structure and / or is formed into reinforcement ribs by folding.

5. The vehicle body D-pillar joint structure according to claim 2, characterized in that: The D-pillar upper reinforcement assembly (20) comprises: A D-pillar upper reinforcement plate (24), one side of which provides a portion of the adapter portion (21); The D-pillar middle joint (25) is connected to one side of the D-pillar upper reinforcement plate (24) and provides the rest of the adapter portion (21). The D-pillar middle joint (25) and the D-pillar upper reinforcement plate (24) are overlapped and fixed to each other at the edges of the connection portion, forming a double-layer structure at the overlapped portion and serving as the structural reinforcement belt (211).

6. The vehicle body D-pillar joint structure according to claim 5, characterized in that: At the overlapped position, the D-pillar middle joint (25) overlaps the outer side of the D-pillar upper reinforcement plate (24).

7. The vehicle body D-pillar joint structure according to claim 5, characterized in that: At the overlapped portion, both the D-pillar middle joint (25) and the D-pillar upper reinforcement plate (24) have folded edge portions (23), and the folded edge portions (23) of the two are overlapped with the D-pillar inner plate (10) to form a three-layer structure (26).

8. The vehicle body D-pillar joint structure according to claim 5, characterized in that: The overlapped portion between the folded edge portion (23) and the D-pillar inner plate (10), and between the D-pillar middle joint (25) and the D-pillar upper reinforcement plate (24) are fixed by single overall assembly welding.

9. A vehicle body D-pillar, characterized in that: The vehicle body D-pillar joint structure comprises the vehicle body D-pillar joint structure according to any one of claims 1 to 8.

10. A vehicle, characterized in that: The vehicle body D-pillar comprises the vehicle body D-pillar as claimed in claim 9.

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