CN210653344U - C post lower joint structure - Google Patents
C post lower joint structure Download PDFInfo
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- CN210653344U CN210653344U CN201920738039.1U CN201920738039U CN210653344U CN 210653344 U CN210653344 U CN 210653344U CN 201920738039 U CN201920738039 U CN 201920738039U CN 210653344 U CN210653344 U CN 210653344U
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Abstract
The utility model provides a C post lower clutch structure, including back longeron, threshold and side wall assembly, the back longeron includes longeron anterior segment and longeron back end, the threshold include with the threshold anterior segment that longeron anterior segment multilayer is connected and with the longeron back end reaches the threshold back end that side wall assembly multilayer is connected. The utility model discloses a with the double-deck overlap joint of longeron anterior segment and threshold, back end and threshold, side wall assembly three-layer overlap joint make C post lower clutch and peripheral one form a complete cross-section, are favorable to improving joint rigidity, reduce the deflection of back door opening when the automobile body turn round.
Description
Technical Field
The utility model relates to an automobile parts field especially relates to a C post lower clutch structure.
Background
With the improvement of the consumption level of China, the requirements of consumers on the safety and the comfort of automobiles are higher and higher. The novel C-column lower joint structure can effectively improve the rigidity of the C-column lower joint, reduce the deformation of a rear door opening during bending and twisting of a vehicle body, improve the dynamic rigidity of a chassis mounting point and improve the comfort of a user; by adopting the aluminum alloy material, the weight of the vehicle body can be reduced, and the fuel economy of the whole vehicle is improved.
In the current traditional vehicle body design, a rear longitudinal beam is in lap joint with a threshold, a C-pillar lower inner plate is in lap joint with the threshold, but the rear longitudinal beam is not in lap joint with the C-pillar lower inner plate, and the rear longitudinal beam is in only one flanging lap joint with the threshold, so that the strength and the rigidity of a C-pillar lower joint are poor, and the dynamic rigidity of a chassis mounting point is difficult to improve.
Fig. 1 is a schematic structural diagram of a cross section of a C-pillar lower joint in the prior art, wherein 1-a side wall outer plate, 2-a C-pillar connecting plate, 3-a rear floor panel, 4-a threshold reinforcing plate, 5-a threshold inner plate and 6-a rear longitudinal beam are provided, and the C-pillar lower joint has the following defects:
(1) the number of parts is large, and the welding process is complex.
(2) The cross section of the threshold (the threshold reinforcing plate 4 and the threshold inner plate 5) and the cross section of the rear longitudinal beam 6 are staggered in the Y direction, so that the rigidity difference of the joint is caused.
(3) When the automobile body is bent and twisted, the deformation of the door opening is large.
(4) And the dynamic stiffness of the torsion beam mounting point on the rear longitudinal beam is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a C-pillar lower joint structure that can enhance the rigidity of the C-pillar lower joint structure and the chassis mounting point dynamic rigidity, and can reduce the weight to improve the endurance mileage of the vehicle.
The utility model provides a C post lower clutch structure, including back longeron, threshold and side wall assembly, the back longeron includes longeron anterior segment and longeron back end, the threshold include with the threshold anterior segment that longeron anterior segment multilayer is connected and with the longeron back end reaches the threshold back end that side wall assembly multilayer is connected.
Further, the longitudinal beam front section comprises a double-layer cross section, and a first connecting section and a second connecting section which are formed by respectively extending the tail ends of the double-layer cross section upwards and downwards, the first connecting section is connected with the upper tower of the threshold front section, and the second connecting section is connected with the lower tower of the threshold front section to form a double-layer tower connection cross section structure.
Furthermore, the rear section of the longitudinal beam, the side wall assembly and the rear section of the doorsill form an enclosed cross-section structure.
Furthermore, the longitudinal beam rear section comprises three layers of cross sections, a third connecting section and a fourth connecting section which are formed by upwards and downwards extending the tail ends of the three layers of cross sections, and a fifth connecting section which is arranged on the three layers of cross sections and below the second connecting section, wherein the third connecting section is connected with the side wall assembly in a tower manner, and the fourth connecting section and the fifth connecting section are respectively connected with the doorsill rear section in a tower manner, so that a closed cross-section structure of the three layers of tower connections is formed.
Further, the rear longitudinal beam is fixedly connected with the threshold through FDS and bolts.
Further, the front section of the longitudinal beam is fixedly connected with the side wall assembly through spot welding and/or CO2 shielded welding.
Furthermore, the upper part of the side wall assembly is connected with the rear section of the longitudinal beam through SPR, and the lower part of the side wall assembly is connected with the side part of the threshold, which is opposite to the rear longitudinal beam, through FDS.
Further, the rear longitudinal beam is of a high-pressure cast aluminum structure, the doorsill is of an aluminum extrusion structure, and the side wall assembly is of a steel plate stamping structure.
To sum up, the utility model enables the lower joint of the C-pillar and the peripheral parts to form a complete cross section by lapping the front section of the longitudinal beam with the threshold in a double-layer way and lapping the rear section of the longitudinal beam with the threshold and the side wall assembly in a three-layer way, which is beneficial to improving the rigidity of the joint and reducing the deformation of the rear door opening when the automobile body is bent; meanwhile, the aluminum alloy material is adopted, so that the weight of the vehicle body is effectively reduced, and the fuel economy of the whole vehicle is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a cross-sectional view of a C-pillar lower joint in the prior art;
fig. 2 is a schematic structural view of a lower joint structure of a C-pillar according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;
FIG. 4 is a schematic cross-sectional view taken along the line A-A in FIG. 3;
FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3;
FIG. 6 is a schematic structural view of the rear side rail of FIG. 2;
FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;
FIG. 8 is a schematic cross-sectional view taken along the line C-C in FIG. 7;
fig. 9 is a schematic cross-sectional view taken along the direction D-D in fig. 7.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the invention, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 2 to 9, the utility model provides a C-pillar lower joint structure, which comprises a rear longitudinal beam 10, a door sill 20 and a side wall assembly 30.
Wherein, as shown in fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, back longeron 10 includes longeron anterior segment 11 and longeron back end 12, and meanwhile, threshold 20 includes threshold anterior segment 21 with longeron anterior segment 11 multilayer connection and threshold back end 22 with longeron back end 12 and side wall assembly 30 multilayer connection, the utility model provides a preferred embodiment, longeron anterior segment 11 and threshold anterior segment 21 connect for the double-deck tower, and longeron back end 12 connects for the three-deck tower with side wall assembly 30 and threshold back end 22, and forms enclosed type cross-sectional structure, makes C post lower clutch and peripheral form a complete cross-section, is favorable to improving C post lower clutch rigidity.
In detail, as shown in fig. 8, the longitudinal beam front section 11 includes a double-layer cross section 11a, and a first connecting section 11b and a second connecting section 11c formed by extending the end of the double-layer cross section 11a upward and downward, respectively, the first connecting section 11b is connected to the upper tower of the sill front section 21, and the second connecting section 11c is connected to the lower tower of the sill front section 21, so as to form a double-layer tower connection cross-sectional structure.
As shown in fig. 9, the longitudinal beam rear section 12 includes a three-layer section 12a, a third connecting section 12b and a fourth connecting section 12C formed by extending the end of the three-layer section 12a upward and downward, and a fifth connecting section 12d disposed below the third connecting section 12b on the three-layer section 12a, the third connecting section 12b is tower-connected to the side wall assembly 30, and the fourth connecting section 12C and the fifth connecting section 12d are tower-connected to the sill rear section 22 respectively to form a closed cross-sectional structure of the three-layer tower connection, so that the rigidity of the lower joint of the C-pillar is greatly improved, and the deformation of the rear door opening during the bending and twisting of the vehicle body is reduced.
The utility model discloses in, back longeron 10 passes through FDS and bolt rigid coupling with threshold 20, and longeron anterior segment 11 passes through spot welding and/or CO2 arc welding rigid coupling with side wall assembly 30, and side wall assembly 30's top passes through SPR with longeron back end 12 to be connected, and the lateral part relative with back longeron 10 on below and the threshold 20 passes through FDS to be connected, improves chassis erection point dynamic stiffness, promotes user's travelling comfort.
The utility model discloses in, the high pressure of back longeron 10 for adopting the high pressure to cast aluminium technology and form casts the aluminium structure, and the aluminium extrusion structure of threshold 20 for adopting extrusion technology to form, side wall assembly 30 is for adopting the steel sheet stamping structure that steel sheet stamping forming technology formed, can understand, the utility model discloses an adopt aluminium alloy material with back longeron 10 and threshold 20, can effectively reduce automobile body weight, in order to reach the purpose that subtracts heavy, improve the continuation of the journey mileage of vehicle, improve the fuel economy of whole car.
To sum up, the utility model has the advantages that the front section of the longitudinal beam is in double-layer lap joint with the threshold, and the rear section of the longitudinal beam is in three-layer lap joint with the threshold and the side wall assembly, so that the lower joint of the C column and the peripheral parts form a complete cross section, which is beneficial to improving the rigidity of the joint and reducing the deformation of the rear door opening during the bending of the vehicle body; meanwhile, the aluminum alloy material is adopted, so that the weight of the vehicle body is effectively reduced, and the fuel economy of the whole vehicle is improved.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person can make modifications or changes equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are within the scope of the present invention.
Claims (8)
1. The utility model provides a C post lower clutch structure, its characterized in that, includes back longeron (10), threshold (20) and side wall assembly (30), back longeron (10) include longeron anterior segment (11) and longeron back end (12), threshold (20) include with longeron anterior segment (11) multilayer connection threshold anterior segment (21) and with longeron back end (12) and side wall assembly (30) multilayer connection threshold back end (22).
2. The C-pillar lower joint structure according to claim 1, wherein the longitudinal beam front section (11) comprises a double-layer section (11a), and a first connecting section (11b) and a second connecting section (11C) which are formed by extending the tail end of the double-layer section (11a) upwards and downwards respectively, the first connecting section (11b) is tower-jointed with the upper part of the threshold front section (21), and the second connecting section (11C) is tower-jointed with the lower part of the threshold front section (21) to form a double-layer tower-jointed cross-sectional structure.
3. The C-pillar lower joint structure according to claim 2, characterized in that the side sill rear section (12) forms a closed cross-sectional structure with the side wall assembly (30) and the rocker rear section (22), respectively.
4. The C-pillar lower joint structure according to claim 3, characterized in that the longitudinal beam rear section (12) comprises a three-layer cross section (12a), a third connecting section (12b) and a fourth connecting section (12C) formed by extending the tail end of the three-layer cross section (12a) upwards and downwards, and a fifth connecting section (12d) arranged below the third connecting section (12b) on the three-layer cross section (12a), wherein the third connecting section is tower-connected with the side wall assembly (30), and the fourth connecting section (12C) and the fifth connecting section (12d) are respectively tower-connected with the doorsill rear section (22) to form a closed cross-section structure of the three-layer tower-connection.
5. The C-pillar lower joint structure according to claim 1, wherein the rear side member (10) is fixedly attached to the rocker (20) by FDS and bolts.
6. The C-pillar lower joint structure according to claim 1, characterized in that the longitudinal beam front section (11) is fixedly connected with the side wall assembly (30) through spot welding and/or CO2 shielded welding.
7. The C-pillar lower joint structure according to claim 1, wherein the side sill assembly (30) is connected at an upper side thereof to the side sill rear section (12) through SPR and at a lower side thereof to a side portion of the rocker (20) opposite to the rear side sill (10) through FDS.
8. The C-pillar lower joint structure according to claim 1, wherein the rear side member (10) is an aluminum high-pressure cast structure, the rocker (20) is an aluminum extruded structure, and the side wall assembly (30) is a steel plate stamped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920738039.1U CN210653344U (en) | 2019-05-21 | 2019-05-21 | C post lower joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920738039.1U CN210653344U (en) | 2019-05-21 | 2019-05-21 | C post lower joint structure |
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| Publication Number | Publication Date |
|---|---|
| CN210653344U true CN210653344U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920738039.1U Active CN210653344U (en) | 2019-05-21 | 2019-05-21 | C post lower joint structure |
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| CN (1) | CN210653344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115257935A (en) * | 2022-08-12 | 2022-11-01 | 浙江吉利控股集团有限公司 | Side wall plate assembly and vehicle |
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2019
- 2019-05-21 CN CN201920738039.1U patent/CN210653344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115257935A (en) * | 2022-08-12 | 2022-11-01 | 浙江吉利控股集团有限公司 | Side wall plate assembly and vehicle |
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