CN115257952A - Car frame construction and car - Google Patents
Car frame construction and car Download PDFInfo
- Publication number
- CN115257952A CN115257952A CN202211074116.0A CN202211074116A CN115257952A CN 115257952 A CN115257952 A CN 115257952A CN 202211074116 A CN202211074116 A CN 202211074116A CN 115257952 A CN115257952 A CN 115257952A
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- Prior art keywords
- mounting hole
- cross beam
- automobile
- side plate
- fixed
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- 238000010276 construction Methods 0.000 title claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000003351 stiffener Substances 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- 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
- B62D25/08—Front or rear portions
-
- 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
- B62D25/02—Side panels
-
- 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
- B62D25/06—Fixed roofs
-
- 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
- B62D25/20—Floors or bottom sub-units
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to the technical field of vehicle body structures, and particularly discloses an automobile frame structure and an automobile. The automobile frame structure comprises a C-ring structure and a V-shaped supporting structure. The C-ring structure comprises two oppositely arranged side plate supporting plates, a top cross beam connected to the tops of the two side plate supporting plates and a bottom cross beam connected between the bottoms of the two side plate supporting plates. Two ends of the V-shaped supporting structure are respectively fixed on the two side plate supporting plates or simultaneously fixed on the top cross beam, and the folded angle parts of the V-shaped supporting structure are fixed on the bottom cross beam. The V-shaped supporting structure is in a V shape and is arranged in the range of the quadrilateral C-ring structure, the C-ring structure is divided into three triangular structures, and the torsional rigidity performance of the automobile is improved by utilizing the stability characteristic of the triangular structures. And the V-shaped supporting structure improves the torsional rigidity mode, is favorable for reducing the NHV problem of the automobile and indirectly resists the impact of the trunk.
Description
Technical Field
The invention relates to the technical field of automobile body structures, in particular to an automobile frame structure and an automobile.
Background
With the improvement of living standard of people, the quality requirement of people on automobiles is higher and higher. In the driving process of automobiles, the problems of the steering stability and NHV (Noise and Vibration and Harshness) of the whole automobile are also gradually valued. From the viewpoint of automobile performance, the torsional rigidity performance of automobiles has the most direct relationship with these problems. The C-ring structure at the rear part of the automobile is a very important structure for improving the torsional rigidity performance of the automobile.
In the prior art, the main strategy for improving the torsion performance of the whole automobile is to increase the thickness of a cavity and a metal plate of a bottom structure, the structural rigidity of a whole reinforcing plate and a side wall of a skylight and the thickness of an upper structure cavity and a lower structure cavity of a rear door opening aiming at a C-ring structure at the rear part of the automobile body. These measures are costly, but have limited lift and present the problem of complex assembly processes. Therefore, how to design a reinforcing structure with convenient assembly and high torsional rigidity performance improvement degree aiming at the C-ring structure needs to be solved urgently.
Disclosure of Invention
The invention discloses an automobile frame structure and an automobile, which can improve the torsional rigidity performance of the automobile and relieve the NHV problem of the automobile.
In order to achieve the purpose, the invention provides the following technical scheme:
an automobile frame structure comprises a C-ring structure and a V-shaped supporting structure;
the C-ring structure comprises two oppositely arranged side plate supporting plates, a top cross beam connected to the tops of the two side plate supporting plates and a bottom cross beam connected between the bottoms of the two side plate supporting plates;
two ends of the V-shaped supporting structure are respectively fixed on the two side plate supporting plates or simultaneously fixed on the top cross beam, and the folded angle part of the V-shaped supporting structure is fixed on the bottom cross beam.
Since the C-ring structure is a quadrilateral structure and has no stability, a V-shaped support structure is added in the C-ring structure area. The V-shaped supporting structure is V-shaped and is arranged in a quadrilateral range, the C-ring structure is divided into three triangular structures, the torsional rigidity performance of the automobile is improved by utilizing the stability characteristic of the triangles, and the NHV problem of the automobile is further relieved. Such structural design can also indirectly resist the impact of luggage loaded on the automobile, has the advantages of simple structure and convenient installation, and is favorable for popularization and use.
Optionally, the cross section of the V-shaped support structure along the extending direction of the V-shaped support structure is corrugated.
Optionally, the bottom cross beam further comprises a reinforcing plate, and the reinforcing plate is arranged on one side of the folded corner part, which is far away from the bottom cross beam; the reinforcing plate and the folded angle part are fixed on the bottom cross beam through a first connecting piece.
Optionally, the first connecting piece is a first bolt, a first mounting hole is formed in the reinforcing plate, a second mounting hole is formed in the bent portion, and a third mounting hole is formed in the bottom cross beam; the first bolt sequentially penetrates through the first mounting hole, the second mounting hole and the third mounting hole in a threaded fit mode.
Optionally, the number of the first connecting pieces is two.
Optionally, the end of the V-shaped support structure is fixed to the corresponding side plate support plate through a second connector; or the end part of the V-shaped supporting structure is fixed on the top cross beam through a second connecting piece.
Optionally, the second connecting piece is a second bolt, and a fourth mounting hole is arranged on the end of the V-shaped supporting structure;
when the end part of the V-shaped supporting structure is fixed on the corresponding side plate supporting plate through a second connecting piece, a fifth mounting hole is formed in the side plate supporting plate; the second bolt sequentially penetrates through the fourth mounting hole to be in threaded fit with the fifth mounting hole;
when the end part of the V-shaped supporting structure is fixed on the top cross beam through a second connecting piece, a fifth mounting hole is formed in the top cross beam; and the second bolt sequentially penetrates through the fourth mounting hole to be in threaded fit with the fifth mounting hole.
Optionally, the number of the second connecting members is three between each group of the mutually corresponding side plate supporting plates and the end of the V-shaped supporting structure.
Optionally, all three of the connecting pieces are distributed in a triangular shape.
An automobile comprises an automobile body and the automobile frame structure;
the C-ring structure is fixed to the rear portion of the vehicle body.
Drawings
FIG. 1a is a schematic structural diagram of an automobile frame according to an embodiment of the present invention;
FIG. 1b is a schematic illustration of a disassembled automobile frame according to an embodiment of the present invention;
FIGS. 2a and 2b are schematic structural views of a vehicle frame according to an embodiment of the present invention;
FIG. 3 is a front view of a V-shaped support structure provided by an embodiment of the present invention;
FIG. 4 is a schematic view of a reinforcing plate and a first connecting member according to an embodiment of the present invention;
fig. 5 is a schematic view of a V-shaped supporting structure and a second connecting member according to an embodiment of the invention.
Reference numerals are as follows:
a 1-C ring structure; 11-a top cross-beam; 12-side plate support plates; 13-bottom cross beam;
a 2-V shaped support structure; 21-a second mounting hole; 22-a fourth mounting hole; 3-a reinforcing plate;
31-a first mounting hole; 4-a first connector; 5-a second connector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present application provides an automotive frame structure, as shown in fig. 1a and 1b, comprising a C-ring structure 1 and a V-shaped support structure 2. The C-ring structure 1 comprises two oppositely disposed side panel support plates 12, a top cross beam 11 connected to the top of the two side panel support plates 12 and a bottom cross beam 13 connected between the bottom of the two side panel support plates 12. Fig. 1a shows the structure of a V-shaped support structure 2 secured to a C-ring structure 1, and fig. 1b shows a disassembled schematic view of a frame structure of an automobile.
Referring to fig. 2a and 2b, the C-ring structure 1 is quadrilateral, and the C-ring structure 1 is easily deformed when being stressed due to instability of the quadrilateral structure. When the rear part of the vehicle body is subjected to torsional load, the whole vehicle is also easy to be twisted and deformed. The V-shaped support structure 2 provided in the embodiment of the present application is fixed at both ends thereof to the two side plate support plates 12 (as shown in the schematic view of fig. 2 a) or to the roof cross member 11 (as shown in the schematic view of fig. 2 b). The dog-ear K of the V-shaped support structure 2, i.e. its lowermost part, is fixed to the bottom cross member 13 of the C-ring structure 1.
In fig. 2a, the two ends of the V-shaped support structure 2 are fixed to the two side plate support plates 12, respectively, and the ends of the V-shaped support structure 2 are fixed to the ends of the side plate support plates 12 close to the top cross beam 11. The top cross beam 11 of the C-ring structure 1 and the two side beams of the V-shaped support structure 2 form an approximately triangular structure, the left side plate support plate 12 of the C-ring structure 1, the left half part of the bottom cross beam 13 and the left side beam of the V-shaped support structure 2 form an approximately triangular structure, and the right side plate support plate 12 of the C-ring structure 1, the right half part of the bottom cross beam 13 and the right side beam of the V-shaped support structure 2 also form an approximately triangular structure.
In fig. 2b, both ends of the V-shaped support structure 2 are illustrated as being fixed to the top beam 11 at the same time, and both ends of the V-shaped support structure 2 are fixed to the ends of the top beam 11, respectively. The top cross beam 11 of the C-ring structure 1 and the two side beams of the V-shaped supporting structure 2 form an approximately triangular structure, meanwhile, the left side plate support plate 12 and the left half part of the bottom cross beam 13 of the C-ring structure 1 and the left side beam of the V-shaped supporting structure 2 form an approximately triangular structure, and the right side plate support plate 12 and the right half part of the bottom cross beam 13 of the C-ring structure 1 and the right side beam of the V-shaped supporting structure 2 also form an approximately triangular structure.
Therefore, the quadrangular C-ring structure 1 is divided into three triangles by the V-shaped support structure 2, and the stability of the C-ring structure 1 is increased due to the stability characteristics of the triangles, thereby increasing the overall torsional rigidity of the automobile.
Because the torsional rigidity mode is calculated through the torsional rigidity, the torsional rigidity mode of the whole vehicle is increased while the torsional rigidity of the whole vehicle is increased. The torsional rigidity mode is closely related to the NHV problem of the automobile, because the torsional rigidity mode of the automobile is increased, the NHV problem of the automobile is relieved, and the problems of noise, vibration and stability of the automobile are improved.
Specifically, as shown in fig. 3, the cross section of the V-shaped support structure 2 is corrugated at a cut surface on the L side in the extending direction of the side members. The corrugated cross section of the V-shaped supporting structure 2 enables the V-shaped supporting structure 2 to have higher supporting strength and bending rigidity, and the V-shaped supporting structure 2 is less prone to fracture or deformation when being impacted.
Specifically, as shown in fig. 4, in order to prevent the fracture phenomenon caused by the stress on the folded part K, a reinforcing plate 3 may be further disposed on the V-shaped supporting structure 2. The reinforcing plate 3 is arranged on one side of the folded part K away from the bottom cross beam 13 and used for reinforcing the connection between the V-shaped supporting structure 2 and the C-ring structure 1. And the reinforcing plate 3 and the folded corner portion K are fixed to the bottom cross member 13 by the first connecting member 4. Wherein the first connecting member 4 may be a first bolt. In the corresponding position, the reinforcing plate 3 is provided with a first mounting hole 31, the dog-ear portion K is provided with a second mounting hole 21, and the bottom cross member 13 is provided with a third mounting hole (not shown here). The first bolt sequentially penetrates through the first mounting hole 31, the second mounting hole 21 and the third mounting hole and is matched with the threads in the holes, and the effect of mounting and fastening is achieved. The number of the first connecting pieces 4 may be two, and correspondingly, the number of the first mounting holes 31, the second mounting holes 21 and the third mounting holes is also two, so as to prevent the problem that the mounting holes are too much loaded and cannot bear due to the existence of only one mounting hole and one connecting piece.
Further, as shown in fig. 5, both end portions of the V-shaped support structure 2 are fixed to the corresponding side plate support plates 12 by the second connectors 5. The second connecting member 5 may be a second bolt, and a fourth mounting hole 22 is provided at a corresponding position of the end of the V-shaped support structure 2 and a fifth mounting hole is provided at a corresponding position of the side plate support plate 12. And enabling the second bolt to sequentially penetrate through the fourth mounting hole 22 and the fifth mounting hole and to be matched with the threads in the holes, so that two ends of the V-shaped supporting structure 2 are fixedly connected with the C ring structure 1.
It will be appreciated that the ends of the V-shaped support structure 2 may also be secured to the top cross member 11 by means of the second connectors 5. When the end of the V-shaped supporting structure 2 can be further fixed to the top beam 11 through the second connecting member 5, fifth mounting holes are respectively formed at two ends of the top beam 11. And enabling a second bolt to sequentially penetrate through the fourth mounting hole 22 and the fifth mounting hole and to be matched with the threads in the holes, so that two ends of the V-shaped supporting structure 2 are fixedly connected with the C ring structure 1.
It should be noted that the number of the second connecting members 5 may be three, and the corresponding number of the mounting holes is three. And the mounting positions of the three connecting pieces can be distributed in a triangular shape, so that the load borne by the V-shaped supporting structure 2 is uniformly borne through the three bolts and the mounting holes. As shown in fig. 4, two mounting holes provided in the embodiment of the present application are located on a straight line where the side plate support plate 12 is located, and the third mounting hole is located away from the straight line, thereby forming a triangular shape.
The embodiment of the application also provides an automobile which comprises an automobile body and the automobile frame structure, wherein the C ring structure 1 is fixed at the rear part of the automobile body. In some test experiments, the torsional rigidity of the whole vehicle is 22.03kN.m/deg under the condition that the V-shaped supporting structure 2 does not exist; and after the V-shaped supporting structure 2 is arranged, the torsional rigidity of the whole vehicle is improved to 29.1kN.m/deg. In contrast, the provision of the V-shaped support structure 2 provides an increase in the torsional stiffness of the entire vehicle of about 32%. And as the top cross beam 11 in the vehicle body can be provided with a hat rack, luggage and other articles are often placed. After the V-shaped supporting structure 2 is arranged, the V-shaped supporting structure 2 can play a role in resisting luggage impact and improving luggage impact safety.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An automobile frame structure is characterized by comprising a C-ring structure and a V-shaped supporting structure;
the C-ring structure comprises two oppositely arranged side plate supporting plates, a top cross beam connected to the tops of the two side plate supporting plates and a bottom cross beam connected between the bottoms of the two side plate supporting plates;
two ends of the V-shaped supporting structure are respectively fixed on the two side plate supporting plates or simultaneously fixed on the top cross beam, and the folded angle part of the V-shaped supporting structure is fixed on the bottom cross beam.
2. The vehicle frame structure according to claim 1, wherein the V-shaped support structure has a corrugated cross-section in an extending direction of the V-shaped support structure.
3. The automotive frame structure according to claim 1, characterized by further comprising a reinforcement plate provided on a side of the knuckle portion facing away from the bottom cross member; the reinforcing plate and the folded angle part are fixed on the bottom cross beam through a first connecting piece.
4. The vehicle frame structure of claim 3, wherein the first connector is a first bolt, the stiffener is provided with a first mounting hole, the knuckle is provided with a second mounting hole, and the bottom cross member is provided with a third mounting hole; the first bolt sequentially penetrates through the first mounting hole, the second mounting hole and the third mounting hole in a threaded fit mode.
5. The vehicle frame structure according to claim 3, wherein the number of the first connecting members is two.
6. The automotive frame structure of claim 1, wherein ends of the V-shaped support structures are secured to the corresponding side panel support plates by second connectors; or the end part of the V-shaped supporting structure is fixed to the top cross beam through a second connecting piece.
7. The vehicle frame structure of claim 6, wherein the second connecting member is a second bolt, and a fourth mounting hole is provided on an end of the V-shaped support structure;
when the end part of the V-shaped supporting structure is fixed on the corresponding side plate supporting plate through a second connecting piece, a fifth mounting hole is formed in the side plate supporting plate; the second bolt sequentially penetrates through the fourth mounting hole to be in threaded fit with the fifth mounting hole;
when the end part of the V-shaped supporting structure is fixed on the top cross beam through a second connecting piece, fifth mounting holes are formed in the two ends of the top cross beam; and the second bolt sequentially penetrates through the fourth mounting hole to be in threaded fit with the fifth mounting hole.
8. The vehicle frame construction of claim 7 wherein the number of second connectors between each set of mutually corresponding side panel support panels and the ends of the V-shaped support structure is three.
9. The vehicle frame structure of claim 8, wherein the three second connectors are each triangularly shaped.
10. An automobile, characterized by comprising an automobile body and an automobile frame structure according to any one of claims 1 to 9;
the C-ring structure is fixed to the rear portion of the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211074116.0A CN115257952A (en) | 2022-09-02 | 2022-09-02 | Car frame construction and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211074116.0A CN115257952A (en) | 2022-09-02 | 2022-09-02 | Car frame construction and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115257952A true CN115257952A (en) | 2022-11-01 |
Family
ID=83755201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211074116.0A Pending CN115257952A (en) | 2022-09-02 | 2022-09-02 | Car frame construction and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115257952A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208235A (en) * | 2005-04-27 | 2008-06-25 | 全塑胶公司 | Rear floor of a motor vehicle |
| US20130229030A1 (en) * | 2010-11-10 | 2013-09-05 | Honda Motor Co., Ltd. | Automotive floor structure |
| CN105882760A (en) * | 2015-02-18 | 2016-08-24 | 马自达汽车株式会社 | Upper vehicle-body structure of vehicle |
| CN105984503A (en) * | 2015-02-13 | 2016-10-05 | 广州汽车集团股份有限公司 | Automobile body rear supporting structure |
| CN109476350A (en) * | 2016-08-11 | 2019-03-15 | 宝马股份公司 | Motor vehicle |
| CN109987148A (en) * | 2017-12-29 | 2019-07-09 | 成都航天模塑股份有限公司 | A kind of front end frame of automobile structure |
| CN209159819U (en) * | 2018-10-23 | 2019-07-26 | 苏州英利汽车部件有限公司 | A kind of safe and reliable front end frame of automobile structure |
| CN210971289U (en) * | 2019-12-09 | 2020-07-10 | 北京车和家信息技术有限公司 | Antenna bearing structure, top cap assembly and vehicle |
| CN113165697A (en) * | 2018-11-22 | 2021-07-23 | 戴姆勒股份公司 | Front cabin structure assembly for automobile body |
-
2022
- 2022-09-02 CN CN202211074116.0A patent/CN115257952A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208235A (en) * | 2005-04-27 | 2008-06-25 | 全塑胶公司 | Rear floor of a motor vehicle |
| US20130229030A1 (en) * | 2010-11-10 | 2013-09-05 | Honda Motor Co., Ltd. | Automotive floor structure |
| CN105984503A (en) * | 2015-02-13 | 2016-10-05 | 广州汽车集团股份有限公司 | Automobile body rear supporting structure |
| CN105882760A (en) * | 2015-02-18 | 2016-08-24 | 马自达汽车株式会社 | Upper vehicle-body structure of vehicle |
| CN109476350A (en) * | 2016-08-11 | 2019-03-15 | 宝马股份公司 | Motor vehicle |
| CN109987148A (en) * | 2017-12-29 | 2019-07-09 | 成都航天模塑股份有限公司 | A kind of front end frame of automobile structure |
| CN209159819U (en) * | 2018-10-23 | 2019-07-26 | 苏州英利汽车部件有限公司 | A kind of safe and reliable front end frame of automobile structure |
| CN113165697A (en) * | 2018-11-22 | 2021-07-23 | 戴姆勒股份公司 | Front cabin structure assembly for automobile body |
| CN210971289U (en) * | 2019-12-09 | 2020-07-10 | 北京车和家信息技术有限公司 | Antenna bearing structure, top cap assembly and vehicle |
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