CN115384623A - Automobile body C column upper joint connecting structure - Google Patents
Automobile body C column upper joint connecting structure Download PDFInfo
- Publication number
- CN115384623A CN115384623A CN202211042014.0A CN202211042014A CN115384623A CN 115384623 A CN115384623 A CN 115384623A CN 202211042014 A CN202211042014 A CN 202211042014A CN 115384623 A CN115384623 A CN 115384623A
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- CN
- China
- Prior art keywords
- upper joint
- column
- groove
- connection structure
- vehicle body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 35
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
Abstract
The invention discloses an automobile body C column upper joint connecting structure which comprises a C column upper joint body, wherein the C column upper joint body is of a hollow integral structure, and a C column overlapping groove, a top side beam overlapping groove and a rear top cross beam overlapping groove are formed in the C column upper joint body. This car body C post top connection structural design is reasonable, and the car body C post top connection adopts the high-pressure cast aluminium structure, changes C post, roof boundary beam, back top crossbeam into the overlap joint by original mutual butt joint, can effectively improve C post top connection intensity, integrates three and is one, connects easy and simple to handle to simple structure, light in weight is fit for the wide use of lightweight automobile body.
Description
Technical Field
The invention relates to the technical field of automobile bodies, in particular to a C column upper joint connecting structure of an automobile body.
Background
With the stricter and stricter requirements on the environmental protection of national automobile emission, the riding comfort of people for automobiles is higher and higher, and the light weight of the automobiles and the integral bending rigidity of automobile bodies must be matched with the automobile. The key stress point of the automobile body is that the strength of the stress point directly influences the bending rigidity of the whole automobile and the operation stability and the collision performance of the whole automobile at the joint of each part.
At present, the C column upper joint connecting structure of an automobile body is formed by welding and connecting a C column inner reinforcing plate, a C column inner plate, a rear top beam assembly, a top edge beam inner plate and a top edge beam reinforcing plate which are stamped by steel plates, and the C column, the top edge beam and the rear top beam are all section bar cylinder cavity structures, so that the C column, the top edge beam and the rear top beam cannot be mutually overlapped and can only be butt-welded together, the joint structure strength is low, and the bending and torsion rigidity of the whole automobile is not ensured; and the number of the part structures is large, and the welding process is complicated.
For example, chinese patent CN 209776562U discloses an upper joint structure of a C pillar of an automobile, which includes an upper pillar reinforcement plate a, an inner side surrounding plate and a lower pillar reinforcement plate C, wherein the upper end of the inner side surrounding plate is connected to the rear end of the upper pillar reinforcement plate a, a window is provided in the rear side wall, and the lower pillar reinforcement plate C is provided on the inner side surrounding plate at the front of the window; all parts are welded together, the strength is low, more reinforcing plates are arranged, and the welding process is complicated when more parts are arranged.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the joint connecting structure on the C column of the automobile body, which can effectively improve the joint connecting strength on the C column and is simple and convenient to connect.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
this automobile body C post top connection structure, including C post top connection body, C post top connection body is cavity overall structure, is equipped with C post overlap joint groove and roof boundary beam overlap joint groove and back top crossbeam overlap joint groove on the C post top connection body.
And further:
and a reinforcing rib is arranged in the hollow cavity of the C-column upper connector body.
The C column upper joint body is a high-pressure cast aluminum part.
The top side beam assembly end of the car body is positioned in the top side beam lap joint groove and is welded and connected, the rear top beam assembly end of the car body is positioned in the rear top beam lap joint groove and is welded and connected, and the upper end of the C column assembly of the car body is inserted into the C column lap joint groove and is connected through a fastener.
The C column overlapping groove is a cavity groove with one side and the lower end opened.
The top edge beam overlapping groove and the rear top cross beam overlapping groove are arc-shaped grooves.
The reinforcing ribs in the C column upper joint body are grid reinforcing ribs, and the grid reinforcing ribs are connected with the inner walls of the C column upper joint body.
And an extension plate is arranged on the C column upper joint body and forms an arc-shaped groove.
The reinforcing rib is a hollow integrated reinforcing rib.
And mould ejector pin pylons for reducing hot spot effect on the mould steel are arranged at the positions of the cross points of the reinforcing ribs of the grid type reinforcing ribs.
Compared with the prior art, the invention has the following advantages:
this car body C post top connection structural design is reasonable, and the car body C post top connection adopts the high pressure to cast the aluminium structure, changes C post, top boundary beam, back top crossbeam into the overlap joint by original mutual butt joint, can effectively improve C post top connection intensity, integrates three and is one, connects easy and simple to handle to simple structure, light in weight is fit for the wide use of lightweight automobile body.
Drawings
The following brief description of the drawings and reference numerals in the drawings forms a part of this specification:
FIG. 1 is a bottom view of the C-pillar top fitting of the present invention.
FIG. 2 is a front view of the C-pillar top sub of the present invention.
FIG. 3 is a top view of the C-pillar top sub of the present invention.
Fig. 4 is a cross-sectional view of a grid stiffener cavity pillar of the present invention.
FIG. 5 is a schematic view of the C-pillar upper joint and the peripheral component of the present invention.
FIG. 6 is an exploded view of the C-pillar upper joint structure and the peripheral component of the present invention.
FIG. 7 is a schematic view of a side panel frame of a vehicle body according to the present invention.
In the figure:
1. the novel structural column comprises reinforcing ribs, 2.C column lap grooves, 3 grid reinforcing ribs, 4 reinforcing rib cavity table columns, 5 top edge beam lap grooves, 6 rear top beam lap grooves, 7 reinforcing rib cavities, 8.C column upper connector bodies, 9 top edge beam assemblies, 10 rear top beam assemblies and 11.C column assemblies.
Detailed Description
The following description of the embodiments of the present invention will explain the present invention in further detail by referring to the accompanying drawings.
As shown in fig. 1 to 7, the C-pillar upper joint connecting structure of the automobile body comprises a C-pillar upper joint body 8, a roof side beam assembly 9, a rear roof beam assembly 10 and a C-pillar assembly 11; the C column upper joint body is a high-pressure cast aluminum piece integrally formed through high-pressure casting.
The C-column upper joint body is of a hollow integral structure, and is provided with a C-column lap joint groove 2, a top edge beam lap joint groove 5 and a rear top cross beam lap joint groove 6; the top side beam assembly end of the vehicle body is positioned in the top side beam lap joint groove and is welded and connected, the rear top beam assembly end of the vehicle body is positioned in the rear top beam lap joint groove and is welded and connected, and the upper end of the C column assembly of the vehicle body is inserted into the C column lap joint groove and is connected through a fastener. The C column, the top edge beam and the rear top cross beam are overlapped instead of being butted with each other originally, so that the connection strength of the upper joint of the C column can be effectively improved, three pieces are integrated into one piece, and the connection operation is simple and convenient.
Further, the C column lapping groove is a cavity groove with one side and the lower end opened; the top edge beam overlapping groove and the rear top cross beam overlapping groove are arc-shaped grooves; the upper joint body of the preferable C column is provided with an extension plate, the extension plate forms an arc-shaped groove, the extension plate is connected in an overlapping mode, and the welding process is simple and convenient.
A reinforcing rib 1 is arranged in the hollow cavity of the C column upper connector body; furthermore, the reinforcing ribs in the C column upper joint body are grid reinforcing ribs 3, and the grid reinforcing ribs are connected with all the inner walls of the body; the reinforcing rib is a hollow integrated reinforcing rib; a mould ejector pin column base for reducing the hot spot effect on the mould steel is arranged at the position of each reinforcing rib intersection point of the grid type reinforcing ribs to form a reinforcing rib cavity column 4; the hollow integral structure is formed, and the structural strength is high; 7 structural design of strengthening rib cavity does benefit to new forms of energy automobile body lightweight.
Preferred embodiments of the present invention are:
the C-pillar upper joint assembly is suitable for a new energy or traditional automobile light-weight body, the C-pillar upper joint is integrally formed through high-pressure casting, the side face of the C-pillar upper joint is provided with a plurality of lapping grooves, the lapping surfaces comprise lapping grooves used for connecting a top edge beam and a rear top cross beam, and through integrated structural design, a plurality of lapping surfaces are integrated into a whole, so that modularization and light weight are realized, and protection of a new energy automobile battery and improvement of endurance mileage are realized. The C column upper joint body 8, the top edge beam assembly 9, the rear top beam assembly 10 and the C column assembly 11 are connected together by structural glue and shielded welding. The C-column upper joint body is divided into a left part and a right part as shown in figure 7, and the left part and the right part are completely symmetrical in structure.
The invention relates to a C-pillar joint structure for an aluminum alloy automobile body, wherein three section bar overlapping grooves are designed on a C-pillar upper joint, and the C-pillar upper joint overlapping grooves are used for connecting a C-pillar assembly, a top edge beam assembly and a rear top beam assembly, so that structural parts of the C-pillar assembly, the top edge beam assembly and the rear top beam assembly which are all hollow cavity cylinders are ingeniously connected together.
A plurality of reinforcing ribs for improving the structural rigidity performance are arranged in the cavity of the C-column upper joint casting, the reinforcing ribs form a net structure, and mold ejector pin posts for reducing the hot spot effect on the mold steel are arranged at the cross points of the reinforcing ribs. Through implementing above-mentioned technical scheme, overcome that the automobile body C post upper joint part is in large quantity, welding precision intensity is low among the prior art, is unfavorable for the improvement of the compressive property and the bending rigidity of the automobile body of new energy automobile.
In order to further improve the plasticity of the structure, the product is subjected to heat treatment, so that the shape and size change of the product can be kept within a specified range under the condition of long-term service, and the performance stability of the new energy automobile is ensured. The required a large amount of welding jig of traditional panel beating C post top connection welding assembly has been reduced, examine utensil and mould, reduce process flow, the whole car precision of new energy automobile has been promoted, the bending resistance performance of C post top connection is improved, there are a great design space and design degree of freedom inside the structure of C post top connection body, at the reasonable strengthening rib of cavity internal design, through optimizing the trend of strengthening rib, overall arrangement and material are thick, make it form cavity network structure, further improve its rigidity intensity performance, can effectively promote new energy automobile's bending rigidity nature, lightweight coefficient and whole car production beat, it can produce property ability and product percent of pass to promote. The mold ejector pin column base is designed at the cross points of the multiple ribs, the hot spot effect on the mold steel can be effectively reduced, the performance of the rear longitudinal beam body can be further improved, the structural design of the steel mold is facilitated, the outline of a narrow conical die-casting mold is avoided, and the qualification rate of products is effectively improved.
The C-pillar upper joint is integrally formed through high-pressure casting. With high-pressure casting integrated into one piece technique, replace traditional steel sheet metal structure welding assembly for the automobile body is lighter weight, optimizes automobile body part takt. The material of the C column upper joint is AlSi10MnMg, and the material of the C column upper joint has sufficient elongation and bending angle after tensile fracture, so that the structure can have good plasticity, and the integration level of the structure is improved.
The above-mentioned technical features can be arbitrarily combined to form a plurality of embodiments of the present invention.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (10)
1. The utility model provides a car body C post top connection structure, includes C post top connection body, its characterized in that: the C-column upper joint body is of a hollow integral structure, and a C-column overlapping groove, a top boundary beam overlapping groove and a rear top cross beam overlapping groove are formed in the C-column upper joint body.
2. The vehicle body C-pillar upper joint connection structure according to claim 1, wherein: and a reinforcing rib is arranged in the hollow cavity of the C-column upper connector body.
3. The vehicle body C-pillar upper joint connection structure as set forth in claim 1, wherein: the C-column upper joint body is a high-pressure cast aluminum part.
4. The vehicle body C-pillar upper joint connection structure as set forth in claim 1, wherein: the top side beam assembly end of the car body is positioned in the top side beam lap joint groove and is welded and connected, the rear top beam assembly end of the car body is positioned in the rear top beam lap joint groove and is welded and connected, and the upper end of the C column assembly of the car body is inserted into the C column lap joint groove and is connected through a fastener.
5. The vehicle body C-pillar upper joint connection structure according to claim 1, wherein: the C column lapping groove is a cavity groove with one side and an opening at the lower end.
6. The vehicle body C-pillar upper joint connection structure according to claim 1, wherein: the top edge beam overlapping groove and the rear top cross beam overlapping groove are arc-shaped grooves.
7. The vehicle body C-pillar upper joint connection structure as set forth in claim 2, wherein: the reinforcing ribs in the C column upper joint body are grid reinforcing ribs, and the grid reinforcing ribs are connected with the inner walls of the C column upper joint body.
8. The vehicle body C-pillar upper joint connection structure according to claim 6, wherein: and an extension plate is arranged on the C-column upper joint body and forms an arc-shaped groove.
9. The vehicle body C-pillar upper joint connection structure as set forth in claim 7, wherein: the reinforcing rib is a hollow integrated reinforcing rib.
10. The vehicle body C-pillar upper joint connection structure as set forth in claim 7, wherein: and mould ejector pin pylons for reducing hot spot effect on the mould steel are arranged at the positions of the cross points of the reinforcing ribs of the grid type reinforcing ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211042014.0A CN115384623A (en) | 2022-08-29 | 2022-08-29 | Automobile body C column upper joint connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211042014.0A CN115384623A (en) | 2022-08-29 | 2022-08-29 | Automobile body C column upper joint connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115384623A true CN115384623A (en) | 2022-11-25 |
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ID=84123400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211042014.0A Pending CN115384623A (en) | 2022-08-29 | 2022-08-29 | Automobile body C column upper joint connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115384623A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882269A (en) * | 2015-12-15 | 2017-06-23 | 本田技研工业(中国)投资有限公司 | The attachment structure of body side side bar and crossbeam |
| CN206537373U (en) * | 2017-03-07 | 2017-10-03 | 上汽通用五菱汽车股份有限公司 | A kind of D posts top connection component |
| CN108674487A (en) * | 2018-04-03 | 2018-10-19 | 前途汽车（苏州）有限公司 | A kind of adapter assembly and automobile of automobile |
| CN210027608U (en) * | 2019-06-06 | 2020-02-07 | 江西江铃集团新能源汽车有限公司 | Stand connecting piece and car |
| CN216140071U (en) * | 2021-08-10 | 2022-03-29 | 北京车和家信息技术有限公司 | Rear side wall structure and vehicle |
| CN216546381U (en) * | 2021-11-02 | 2022-05-17 | 浙江零跑科技股份有限公司 | Novel rear longitudinal beam integrated structure and new energy automobile |
| CN216546382U (en) * | 2021-11-23 | 2022-05-17 | 浙江零跑科技股份有限公司 | A back longeron foundry goods structure for new energy automobile |
-
2022
- 2022-08-29 CN CN202211042014.0A patent/CN115384623A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882269A (en) * | 2015-12-15 | 2017-06-23 | 本田技研工业(中国)投资有限公司 | The attachment structure of body side side bar and crossbeam |
| CN206537373U (en) * | 2017-03-07 | 2017-10-03 | 上汽通用五菱汽车股份有限公司 | A kind of D posts top connection component |
| CN108674487A (en) * | 2018-04-03 | 2018-10-19 | 前途汽车（苏州）有限公司 | A kind of adapter assembly and automobile of automobile |
| CN210027608U (en) * | 2019-06-06 | 2020-02-07 | 江西江铃集团新能源汽车有限公司 | Stand connecting piece and car |
| CN216140071U (en) * | 2021-08-10 | 2022-03-29 | 北京车和家信息技术有限公司 | Rear side wall structure and vehicle |
| CN216546381U (en) * | 2021-11-02 | 2022-05-17 | 浙江零跑科技股份有限公司 | Novel rear longitudinal beam integrated structure and new energy automobile |
| CN216546382U (en) * | 2021-11-23 | 2022-05-17 | 浙江零跑科技股份有限公司 | A back longeron foundry goods structure for new energy automobile |
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