CN212685732U - D post assembly, back of body door frame assembly and car - Google Patents
D post assembly, back of body door frame assembly and car Download PDFInfo
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- CN212685732U CN212685732U CN202021459446.8U CN202021459446U CN212685732U CN 212685732 U CN212685732 U CN 212685732U CN 202021459446 U CN202021459446 U CN 202021459446U CN 212685732 U CN212685732 U CN 212685732U
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Abstract
The application provides a D-pillar assembly, a back door frame assembly and an automobile, wherein the D-pillar assembly comprises a D-pillar inner plate upper section, a D-pillar inner plate middle section and a D-pillar inner plate lower section which are sequentially connected, and a connecting reinforcing plate, a D-pillar reinforcing plate upper section and a D-pillar reinforcing plate lower section which are sequentially connected; the upper section of the D-column inner plate is fixedly connected with a connecting reinforcing plate, and the connecting reinforcing plate is fixedly connected with a top cover rear cross beam of the vehicle body; the middle section of the D-column inner plate is fixedly connected with the upper section of the D-column reinforcing plate, and a first cavity is formed between the middle section of the D-column inner plate and the upper section of the D-column reinforcing plate; the lower section of the D column inner plate is fixedly connected with the lower section of the D column reinforcing plate, a second cavity is formed between the lower section of the D column inner plate and the lower section of the D column reinforcing plate, and the first cavity is communicated with the second cavity. The application has promoted the structural strength and the bearing capacity of D post, has promoted the torsional rigidity performance and the mode of back of the body door frame and white automobile simultaneously, has reduced whole car weight.
Description
Technical Field
The application relates to the technical field of auto-parts, especially, relate to a D post assembly, back of body door frame assembly and car.
Background
With the development of automobile technology and the gradual improvement of living standard of people, the requirements of customers on the durability and the reliability of automobiles are increasingly strict. In a body-in-white structure, a D column is the most important part of the whole tail door frame structure, the upper end of the D column is connected with a top cover rear cross beam assembly, the lower end of the D column is connected with a tail skirt assembly, and the middle of the D column is used as a supporting structure.
The tail gate frame structure is an open ring structure for the car body, so the mode and rigidity of the whole ring structure are very important, and the torsional rigidity performance of the whole white car body is directly influenced. In the actual use process of the existing automobile tail door frame, due to the fact that torsional rigidity is low, the automobile tail door frame cannot bear larger load impact, and the problem of welding point cracking often occurs.
Traditional D post structure generally divide into the multistage welding and forms, through CAE analysis and actual way examination problem analysis again, increases thicker reinforcing plate structure at inside upper and lower end of D post, perhaps increases part thickness and realizes the promotion of rigidity, mode, and this kind of improvement effect is not only unobvious, and can cause whole car weight to increase more.
SUMMERY OF THE UTILITY MODEL
An object of this application provides a D post assembly, back of body door frame assembly and car to promote the structural strength and the bearing capacity of D post, promote the torsional rigidity performance and the mode of back of body door frame and white automobile body simultaneously, reduce whole car weight.
The application provides a D-column assembly, which comprises a D-column inner plate upper section, a D-column inner plate middle section and a D-column inner plate lower section which are sequentially connected, and a connecting reinforcing plate, a D-column reinforcing plate upper section and a D-column reinforcing plate lower section which are sequentially connected;
the upper section of the D-column inner plate is fixedly connected with the connection reinforcing plate, and the connection reinforcing plate is fixedly connected with a top cover rear beam of the vehicle body;
the middle section of the D-column inner plate is fixedly connected with the upper section of the D-column reinforcing plate, and a first cavity is formed between the middle section of the D-column inner plate and the upper section of the D-column reinforcing plate;
the lower section of the D-column inner plate is fixedly connected with the lower section of the D-column reinforcing plate, a second cavity is formed between the lower section of the D-column inner plate and the lower section of the D-column reinforcing plate, and the first cavity is communicated with the second cavity.
In one possible implementation mode, the device further comprises a D column upper outer plate and a D column lower outer plate;
one side of the D-column upper outer plate is fixedly connected with the upper section of the D-column reinforcing plate, and the other side of the D-column upper outer plate is fixedly connected with an outer skin of a side wall of the vehicle body;
the inner side surface of the D-column lower outer plate is fixedly connected with the lower section of the D-column inner plate and the lower section of the D-column reinforcing plate respectively.
In a possible implementation manner, the D-pillar inner plate further comprises a connecting reinforcement, and the connecting reinforcement is fixedly connected with the middle section of the D-pillar inner plate.
In one possible implementation manner, the thickness of the upper section of the D-pillar inner plate is 1.6mm, the thickness of the middle section of the D-pillar inner plate is 1.2mm, and the thickness of the lower section of the D-pillar inner plate is 1.2 mm;
and the upper section of the D column inner plate, the middle section of the D column inner plate and the lower section of the D column inner plate are all cold continuous rolling low-carbon steel plates.
The application also provides a back door frame assembly, wherein the back door frame assembly comprises the D-pillar assembly provided by the application, and the back door frame assembly further comprises a top cover rear cross beam and a rear skirt portion;
the D post assembly symmetry is provided with two, every the both ends of D post assembly equally divide respectively with roof rear frame member with back skirt portion fixed connection.
In a possible implementation manner, the top cover rear cross beam comprises a top cover rear cross beam inner plate and a top cover rear cross beam outer plate, two sides of the upper section of the D column inner plate are respectively fixedly connected with the top cover rear cross beam inner plate and the top cover rear cross beam outer plate, a third cavity is formed between the upper section of the D column inner plate and the top cover rear cross beam inner plate, and the third cavity is communicated with the first cavity.
In one possible implementation, a roof cavity is formed between the roof rear cross rail inner panel and the roof rear cross rail outer panel.
In a possible implementation manner, the rear skirt portion comprises a rear skirt portion outer plate and a skirt portion inner skin, the lower section of the D column inner plate is fixedly connected with the skirt portion inner skin, and one surface of the D column lower outer plate, which is deviated from the lower section of the D column inner plate, is fixedly connected with the rear skirt portion outer plate.
In one possible implementation, a skirt cavity is formed between the rear skirt outer panel and the skirt inner skin.
The application also provides an automobile, wherein, including the back door frame assembly that the application provided.
The technical scheme provided by the application can achieve the following beneficial effects:
the application provides a D post assembly, back of body door frame assembly and car, through set up first cavity and second cavity in D post assembly, the structural strength of D post assembly has effectively been promoted, and through the top cap cavity that sets up, the skirt section cavity, first cavity, second cavity and third cavity form the continuous cavity in position in making back of the body door frame assembly, can guarantee top cap rear frame, the reliable connection between D post assembly and the back skirt section, the torsional rigidity performance and the mode of back of the body door frame and white automobile body have effectively been promoted.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
FIG. 1 is an exploded view of a D-pillar assembly provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a back door frame assembly according to an embodiment of the present disclosure;
FIG. 3 is an exploded view of a back door frame assembly provided by an embodiment of the present application;
FIG. 4 is a cross-sectional view at A-A of FIG. 2;
FIG. 5 is a cross-sectional view at B-B of FIG. 2;
FIG. 6 is a cross-sectional view at C-C of FIG. 2;
FIG. 7 is a cross-sectional view taken at D-D of FIG. 2;
FIG. 8 is a cross-sectional view at E-E of FIG. 2;
fig. 9 is a cross-sectional view at F-F in fig. 2.
Reference numerals:
1-a D column assembly;
11-D column inner plate upper section;
111-a third cavity;
the middle section of the inner plate of the 12-D column;
121-a first cavity;
13-D column inner plate lower section;
131-a second cavity;
14-connecting a reinforcing plate;
15-D column reinforcing plate upper section;
the 16-D column reinforcing plate lower section;
17-D column upper and outer plates;
18-D column lower outer plate;
19-an outer skin;
2-top cover rear cross beam;
21-top cover rear beam inner plate;
22-a top cover rear cross beam outer plate;
23-a roof cavity;
3-rear skirt;
31-a rear skirt outer plate;
32-skirt inner skin;
33-skirt cavity;
4-a top cover;
5-connecting the reinforcement.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, it should be understood that the terms "upper" and "lower" used in the description of the embodiments of the present application are used in a descriptive sense only and not for purposes of limitation. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
As shown in fig. 1 to 3, an embodiment of the present application provides a D-pillar assembly, which includes a D-pillar inner plate upper section 11, a D-pillar inner plate middle section 12, and a D-pillar inner plate lower section 13, which are connected in sequence, and a connection reinforcing plate 14, a D-pillar reinforcing plate upper section 15, and a D-pillar reinforcing plate lower section 16, which are connected in sequence; the D-pillar inner plate upper section 11 is fixedly connected with a connecting reinforcing plate 14, and the connecting reinforcing plate 14 is fixedly connected with a top cover rear cross beam 2 of the vehicle body; the D-column inner plate middle section 12 is fixedly connected with the D-column reinforcing plate upper section 15, and a first cavity 121 is formed between the D-column inner plate middle section 12 and the D-column reinforcing plate upper section 15; the D-pillar inner plate lower section 13 is fixedly connected with the D-pillar reinforcement plate lower section 16, a second cavity 131 is formed between the D-pillar inner plate lower section 13 and the D-pillar reinforcement plate lower section 16, and the first cavity 121 is communicated with the second cavity 131.
The first cavity 121 and the second cavity 131 form a continuous closed cavity in the D-pillar assembly, so that the structural strength of the D-pillar assembly 1 and the torsional rigidity performance and mode of the body-in-white are effectively improved.
It should be noted that, the D-pillar inner plate upper section 11, the D-pillar inner plate middle section 12, and the D-pillar inner plate lower section 13 are welded in sequence, the connection reinforcing plate 14, the D-pillar reinforcing plate upper section 15, and the D-pillar reinforcing plate lower section 16 are welded in sequence, and the D-pillar inner plate upper section 11, the connection reinforcing plate 14, the D-pillar inner plate middle section 12, the D-pillar reinforcing plate upper section 15, the D-pillar inner plate lower section 13, and the D-pillar reinforcing plate lower section 16 can all be welded in connection, thereby ensuring the strength and stability of the overall structure of the D-pillar assembly.
Specifically, the material of D post inner panel upper segment 11, D post inner panel middle section 12 and D post inner panel lower segment 13 all can be cold continuous rolling mild steel plate DC03 to make each section of D post inner panel have good stamping property, have higher intensity simultaneously, promote anti sunken performance.
In addition, the thickness of the D column inner plate upper section 11 can be 1.6mm, and the thickness of the D column inner plate middle section 12 and the thickness of the D column inner plate lower section 13 can be 1.2 mm.
It should be noted that the upper and lower end portions of the D-pillar assembly are critical to the body-in-white mode and torsional rigidity, and therefore, the rigidity of the D-pillar assembly 1 near the connection position with the roof rear cross beam 2 can be increased by relatively increasing the thickness of the D-pillar inner plate upper section 11, which is beneficial to improving the body-in-white torsional rigidity performance and mode.
The material of the connecting reinforcing plate 14, the D-column reinforcing plate upper section 15 and the D-column reinforcing plate lower section 16 can be gapless atom high-strength cold-rolled steel B210P1/B250P1, the material can enable the connecting reinforcing plate 14, the D-column reinforcing plate upper section 15 and the D-column reinforcing plate lower section 16 to have good rigidity characteristics while reducing the thickness, and the thickness of the connecting reinforcing plate 14, the D-column reinforcing plate upper section 15 and the D-column reinforcing plate lower section 16 can be 1.2 mm.
As a specific implementation, as shown in fig. 3 and 6, the D-pillar assembly further includes a D-pillar upper outer plate 17 and a D-pillar lower outer plate 18; one side of the D-column upper outer plate 17 is fixedly connected with the D-column reinforcing plate upper section 15, and the other side of the D-column upper outer plate 17 is fixedly connected with an outer skin 19 of the side wall of the vehicle body; the inner side surface of the D-pillar lower outer plate 18 is fixedly connected with the D-pillar inner plate lower section 13 and the D-pillar reinforcement plate lower section 16 respectively.
The outer panel 17, the outer panel 18 under the D post and the outer covering 19 of automobile body side wall constitute the cover structure of D post assembly on the D post to increase the shock resistance of automobile body in D post position department, simultaneously, outer panel 17 covers D post inner panel upper segment 11 and partial D post inner panel middle section 12 on the D post, and outer panel 18 covers D post inner panel hypomere 13 and partial D post inner panel middle section 12 under the D post, thereby can strengthen the holistic structural strength of D post assembly.
The material of the D-column upper outer plate 17, the D-column lower outer plate 18 and the outer skin 19 of the vehicle body side wall can be cold continuous rolling low-carbon steel plate DC03/DC06, the material can enable the D-column upper outer plate 17, the D-column lower outer plate 18 and the outer skin 19 of the vehicle body side wall to have good rigidity characteristics while reducing the thickness, the D-column upper outer plate 17, the D-column lower outer plate 18 and the outer skin 19 of the vehicle body side wall are used as an outer covering structure of the D-column assembly 1, the force bearing capacity and the torsional rigidity of the D-column assembly 1 and a white vehicle body are small, therefore, the thickness of the D-column upper outer plate 17 and the D-column lower outer plate 18 can be 0.7 mm-0.8 mm, the thickness of the outer skin 19 of the vehicle body side wall is 0.65 mm-0.7 mm, and the light weight of the vehicle body can be achieved.
As a specific implementation manner, as shown in fig. 6, the D-pillar assembly further includes a connection reinforcement 5, and the connection reinforcement 5 is fixedly connected to the D-pillar inner panel middle section 12.
The connecting reinforcement 5 can be connected with the C column and the rear wheel shell assembly, so that partial force borne by the D column assembly can be borne by the connecting reinforcement 5, the C column and the rear wheel shell assembly, the bearing capacity of the D column assembly is improved, and the structural strength of the D column assembly is enhanced.
The embodiment of the application also provides a back door frame assembly, which comprises the D column assembly 1 provided by any embodiment of the application, the back door frame assembly further comprises a top cover rear cross beam 2 and a rear skirt part 3, and the top cover rear cross beam 2 is fixedly connected with a top cover 4 of a vehicle body; the two D column assemblies 1 are symmetrically arranged, and two ends of each D column assembly 1 are fixedly connected with the top cover rear cross beam 2 and the rear skirt portion 3 respectively.
From this, D post assembly 1, top cap rear frame member 2 and back skirt portion 3 have constituted a frame construction, wherein, can weld between D post assembly 1, top cap rear frame member 2 and the back skirt portion 3 and become an organic whole to can effectively promote the holistic torsional rigidity performance of back door frame and white automobile body and mode.
As a specific implementation manner, as shown in fig. 5, the rear roof cross beam 2 may include a rear roof cross beam inner plate 21 and a rear roof cross beam outer plate 22, two sides of the D-pillar inner plate upper section 11 are respectively fixedly connected with the rear roof cross beam inner plate 21 and the rear roof cross beam outer plate 22, a third cavity 111 is formed between the D-pillar inner plate upper section 11 and the rear roof cross beam inner plate 21, and the third cavity 111 is communicated with the first cavity 121.
Through setting up third cavity 111, can promote the structural strength of D post assembly 1 and top cap rear beam 2 hookup location department, and third cavity 111, first cavity 121 and second cavity 131 communicate in proper order, have also promoted the holistic structural strength of D post assembly.
As a specific implementation, as shown in fig. 4, a roof cavity 23 is formed between the roof rear cross rail inner panel 21 and the roof rear cross rail outer panel 22.
This top cap cavity 23 can strengthen the structural strength of crossbeam 2 behind the top cap, and simultaneously, D post assembly 1 passes through D post inner panel upper segment 11 and links to each other with crossbeam 2 behind the top cap, can make third cavity 111 and top cap cavity 23 position adjacent to can guarantee the structural strength of D post assembly and 2 hookup location departments behind the top cap through the cooperation of third cavity 111 and top cap cavity 23, reinforcing connection reliability.
As a specific implementation manner, as shown in fig. 7 and 8, the rear skirt portion 3 may include a rear skirt portion outer plate 31 and a skirt portion inner skin 32, the D-pillar inner plate lower segment 13 is fixedly connected to the skirt portion inner skin 32, and a surface of the D-pillar lower outer plate 18 facing away from the D-pillar inner plate lower segment 13 is fixedly connected to the rear skirt portion outer plate 31.
The position shown in fig. 7 is the corner position where the D-pillar assembly 1 and the rear skirt 3 start to be connected, and the corner position is particularly important for the body-in-white mode and the torsional rigidity, and at the position, the D-pillar reinforcement plate lower section 16, the D-pillar lower outer plate 18 and the rear skirt outer plate 31 are sequentially welded and connected, so that the structural strength of the connection part of the D-pillar assembly 1 and the rear skirt 3 can be effectively enhanced, and meanwhile, the second cavity 131 is formed in front of the D-pillar inner plate lower section 13, the D-pillar reinforcement plate lower section 16 and the D-pillar lower outer plate 18, which is also beneficial for enhancing the torsional rigidity of the body-in-white.
As a specific implementation, a skirt cavity 33 is formed between the rear skirt outer panel 31 and the skirt inner skin 32, as shown in fig. 9.
This skirt portion cavity 33 can strengthen rear skirt portion 3's structural strength, and simultaneously, second cavity 131 on the D post assembly 1 and skirt portion cavity 33 position are close to, can guarantee the structural strength of D post assembly 1 and rear skirt portion 3 hookup location department.
Therefore, the top cover cavity 23 and the skirt part cavity 33 can form continuous cavities with the first cavity 121, the second cavity 131 and the third cavity 111 on the D-pillar assembly 1, so that the back door frame is integrally formed with the continuous cavities, the reliable connection among the top cover rear cross beam 2, the D-pillar assembly 1 and the rear skirt part 3 is ensured, and the torsional rigidity performance and the mode of the back door frame and the white automobile body are effectively improved.
The embodiment of the application also provides an automobile, which comprises the back door frame assembly provided by any embodiment of the application.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A D-pillar assembly is characterized by comprising a D-pillar inner plate upper section (11), a D-pillar inner plate middle section (12) and a D-pillar inner plate lower section (13) which are sequentially connected, and a connecting reinforcing plate (14), a D-pillar reinforcing plate upper section (15) and a D-pillar reinforcing plate lower section (16) which are sequentially connected;
the D-pillar inner plate upper section (11) is fixedly connected with the connecting reinforcing plate (14), and the connecting reinforcing plate (14) is fixedly connected with a top cover rear cross beam (2) of the vehicle body;
the D-column inner plate middle section (12) is fixedly connected with the D-column reinforcing plate upper section (15), and a first cavity (121) is formed between the D-column inner plate middle section (12) and the D-column reinforcing plate upper section (15);
the D-column inner plate lower section (13) is fixedly connected with the D-column reinforcing plate lower section (16), a second cavity (131) is formed between the D-column inner plate lower section (13) and the D-column reinforcing plate lower section (16), and the first cavity (121) is communicated with the second cavity (131).
2. The D-pillar assembly according to claim 1, further comprising a D-pillar upper outer plate (17) and a D-pillar lower outer plate (18);
one side of the D-column upper outer plate (17) is fixedly connected with the D-column reinforcing plate upper section (15), and the other side of the D-column upper outer plate (17) is fixedly connected with an outer skin (19) of a side wall of a vehicle body;
the inner side surface of the D-column lower outer plate (18) is fixedly connected with the D-column inner plate lower section (13) and the D-column reinforcing plate lower section (16) respectively.
3. The D-pillar assembly according to claim 1, further comprising a connection reinforcement (5), wherein the connection reinforcement (5) is fixedly connected with the D-pillar inner panel middle section (12).
4. The D-pillar assembly according to claim 1, wherein the thickness of the D-pillar inner panel upper section (11) is 1.6mm, the thickness of the D-pillar inner panel middle section (12) is 1.2mm, and the thickness of the D-pillar inner panel lower section (13) is 1.2 mm;
and the D column inner plate upper section (11), the D column inner plate middle section (12) and the D column inner plate lower section (13) are all made of cold continuous rolling low-carbon steel plates.
5. A back door frame assembly, comprising the D-pillar assembly of any of claims 1-4, further comprising a roof rear cross member (2) and a rear skirt (3);
d post assembly (1) symmetry is provided with two, every the both ends of D post assembly (1) equally divide respectively with crossbeam (2) behind the top cap with rear skirt portion (3) fixed connection.
6. The back door frame assembly according to claim 5, wherein the rear roof rail comprises a rear roof rail inner plate (21) and a rear roof rail outer plate (22), two sides of the D-pillar inner plate upper section (11) are respectively and fixedly connected with the rear roof rail inner plate (21) and the rear roof rail outer plate (22), a third cavity (111) is formed between the D-pillar inner plate upper section (11) and the rear roof rail inner plate (21), and the third cavity (111) is communicated with the first cavity (121).
7. The back door frame assembly of claim 6, wherein a roof cavity (23) is formed between the roof rear rail inner panel (21) and the roof rear rail outer panel (22).
8. The tailgate frame assembly according to claim 5, characterized in that the rear skirt (3) comprises a rear skirt outer plate (31) and a skirt inner skin (32), the D-pillar inner plate lower section (13) being fixedly connected to the skirt inner skin (32), and the side of the D-pillar lower outer plate (18) facing away from the D-pillar inner plate lower section (13) being fixedly connected to the rear skirt outer plate (31).
9. The tailgate frame assembly, according to claim 8, characterized in that a skirt cavity (33) is formed between the rear skirt outer panel (31) and the skirt inner skin (32).
10. An automobile comprising the back door frame assembly of any one of claims 5-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021459446.8U CN212685732U (en) | 2020-07-22 | 2020-07-22 | D post assembly, back of body door frame assembly and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021459446.8U CN212685732U (en) | 2020-07-22 | 2020-07-22 | D post assembly, back of body door frame assembly and car |
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| Publication Number | Publication Date |
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| CN212685732U true CN212685732U (en) | 2021-03-12 |
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| CN202021459446.8U Active CN212685732U (en) | 2020-07-22 | 2020-07-22 | D post assembly, back of body door frame assembly and car |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115743313A (en) * | 2022-11-23 | 2023-03-07 | 重庆长安新能源汽车科技有限公司 | Vehicle body structure and have its vehicle |
| ES2957702A1 (en) * | 2022-06-17 | 2024-01-24 | Seat Sa | Reinforcement system for a lower D-pillar of a vehicle (Machine-translation by Google Translate, not legally binding) |
-
2020
- 2020-07-22 CN CN202021459446.8U patent/CN212685732U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2957702A1 (en) * | 2022-06-17 | 2024-01-24 | Seat Sa | Reinforcement system for a lower D-pillar of a vehicle (Machine-translation by Google Translate, not legally binding) |
| CN115743313A (en) * | 2022-11-23 | 2023-03-07 | 重庆长安新能源汽车科技有限公司 | Vehicle body structure and have its vehicle |
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