CN114590215B - Front guard bar mounting bracket, front guard bar body and automobile - Google Patents
Front guard bar mounting bracket, front guard bar body and automobile Download PDFInfo
- Publication number
- CN114590215B CN114590215B CN202011400730.2A CN202011400730A CN114590215B CN 114590215 B CN114590215 B CN 114590215B CN 202011400730 A CN202011400730 A CN 202011400730A CN 114590215 B CN114590215 B CN 114590215B
- Authority
- CN
- China
- Prior art keywords
- front bumper
- arm
- mounting bracket
- cantilever
- assembly
- Prior art date
- 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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- 238000005452 bending Methods 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 238000005336 cracking Methods 0.000 abstract description 7
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
Abstract
The invention discloses a front guard mounting bracket, a front guard body matched with the front guard mounting bracket for use and an automobile adopting the front guard mounting bracket and the front guard body. The cantilever of the front bumper mounting bracket extends to the front of the front bumper assembly through the through hole on the front bumper assembly without bypassing the front wall of the automobile, so that the length of the cantilever is shortened, the bending stiffness is increased, the modal vibration frequency is improved (the measured modal vibration frequency can be improved to be more than 20 Hz), and the front bumper assembly and the automobile body structure connected with the front bumper assembly can be delayed from cracking.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a front bumper assembly structure of an automobile.
Background
The front bumper assembly is an added component to the front bumper assembly, which can increase the safety performance of the automobile. The front guard assembly specifically includes a front guard body and a front guard mounting bracket.
At present, the arrangement form of the front bumper assembly is as follows: the front bumper mounting bracket is arranged at the bottom of the front bumper assembly, the rear side of the front bumper mounting bracket is connected with the frame, the cantilever of the front bumper mounting bracket bypasses the front periphery of the automobile to extend to the front of the front bumper assembly, and the front bumper body is connected to the front side of the cantilever.
The front guard assembly is adopted in an automobile, and after the automobile runs for a short time, the front guard assembly and a vehicle body structure connected with the front guard assembly are easy to crack.
In view of this, it is a technical problem that needs to be solved by those skilled in the art how to avoid the risk of short-time cracking of the front bumper assembly and the vehicle body structure connected to the front bumper assembly.
Disclosure of Invention
In order to solve the technical problems, the invention provides a front bumper assembly, wherein the front bumper mounting bracket comprises a cantilever, the cantilever is provided with a first arm part extending forwards, the front end of the first arm part is provided with a first connecting structure for connecting a front bumper body, and the first arm part can pass through a through hole on the front bumper assembly to enable the first connecting structure to extend to the front of the front bumper assembly.
Optionally, the cantilever further comprises a second arm part, the second arm part is formed by bending the rear end of the first arm part downwards, and a second connecting structure for connecting a frame longitudinal beam is arranged at the lower end of the second arm part.
Optionally, the left and right sides of front guard bar installing support respectively are equipped with one the cantilever, two link to each other through the connecting plate between the cantilever, the connecting plate is the bent plate that the upside was bent forward relative downside.
Optionally, reinforcing plates are arranged between the first arm part and the second arm part of the two cantilevers, the connecting plate is connected between the two reinforcing plates, reinforcing ribs are arranged at the joint positions of the first arm part and the second arm part, and flanges are arranged at the edges of the first arm part and the second arm part.
Optionally, the two reinforcing plates and the connecting plate are provided with lightening holes.
Optionally, the front guard mounting bracket is of a left-right symmetrical integrated structure.
The invention also provides a front guard body which is matched with the front guard mounting bracket for use, and the front guard body is connected with and supported on the top surface of the front end of the first arm part of the front guard mounting bracket.
Optionally, the left and right sides of front guard body respectively is equipped with two linking arms, is first linking arm and is located the second linking arm in the first linking arm outside respectively, be equipped with the third connection structure that is used for connecting the frame on the first linking arm, be equipped with the fourth connection structure that is used for connecting the automobile body on the second linking arm.
The invention also provides an automobile, which comprises a front bumper assembly, the front bumper mounting bracket and the front bumper body, wherein the front bumper assembly is provided with a through hole for the first arm part of the front bumper mounting bracket to pass through.
Optionally, the automobile further comprises a front anti-collision beam extending along the left-right direction, the cantilever of the front bumper mounting bracket comprises a second arm part, the second arm part is formed by bending the rear end of the first arm part downwards, the second arm part is connected to the front end face of the frame longitudinal beam, and the front anti-collision beam is connected to the front side of the second arm part.
Analysis has found that the reason for the short-time cracking of the front bumper assembly and the body structure to which the front bumper assembly is attached is:
in the past, front bumper installing support arranges in front bumper assembly bottom, so the cantilever of front bumper installing support need walk around the front wall before can reach front bumper assembly the place ahead and front bumper body coupling, this just leads to cantilever length very long, therefore bending rigidity is than little, the modal vibration of low frequency (the modal frequency of front bumper assembly in the past is measured and is less than 10 Hz) appears easily, the modal vibration of low frequency easily causes the vibration fatigue of whole car, thereby lead to the quick fracture of front bumper assembly itself and the automobile body structure who links to each other with front bumper assembly.
In contrast, in this scheme, the cantilever of front bumper installing support passes the via hole on the front bumper assembly and stretches to front bumper assembly the place ahead, and need not walk around the front wall, and consequently the length of cantilever is shortened, and consequently bending rigidity has increased, and the modal vibration frequency has promoted (can promote more than 20Hz through measuring modal vibration frequency), consequently can delay front bumper assembly and the fracture of body structure that links to each other with front bumper assembly.
Drawings
FIG. 1 is a schematic view of one embodiment of a front bumper mounting bracket provided by the present invention;
FIG. 2 is a schematic view of an embodiment of a front bumper body provided by the present invention;
FIG. 3 is a schematic view of a portion of an automobile employing the front bumper mounting bracket of FIG. 1 and the front bumper body of FIG. 2;
FIG. 4 is a schematic view of the front guard mounting bracket and front guard body of FIG. 3 removed;
FIG. 5 is a schematic view of a front bumper assembly;
fig. 6 is a schematic view of the connection of the frame rails, front bumper beams and front bumper mounting brackets.
The reference numerals are explained as follows:
10 front guard mounting bracket, 11 cantilever, 111 first arm, 112 second arm, 12 connecting plate, 13 reinforcing plate, 14 reinforcing rib, a first connecting structure, b second connecting structure;
20 front guard bar body, 21 first connecting arm, 22 second connecting arm, 23 main body, 24 guard board, 25 elbow, c third connecting structure and d fourth connecting structure;
30 front bumper assembly, 301 via, 302 grille;
40 front bumper beam; 50 frame rails; 60 car body.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the following description is provided with reference to the accompanying drawings and the specific embodiments.
In the description of the present invention, the lateral direction of the automobile is taken as the left-right direction, the position relatively close to the lateral center is taken as the inside, the position relatively far from the lateral center is taken as the outside, the longitudinal direction of the automobile is taken as the front-back direction, the position relatively close to the head is taken as the front, and the position relatively far from the head is taken as the back.
In the past, after the automobile runs for a short time, the front guard assembly (comprising a front guard bracket and a front guard body) and a vehicle body structure (comprising a vehicle frame and a vehicle body) connected with the front guard assembly can crack, so that the automobile is low in safety and large in running noise.
Analysis suggests that cracking occurs in a short period of time because:
in the past, front guard bar installing support arranges in front bumper assembly bottom, so the cantilever of front guard bar installing support need walk around the front wall before can reach front bumper assembly, and this just leads to cantilever length very long, therefore bending rigidity is than little, the modal vibration of low frequency (the modal frequency of front guard bar assembly in the past is measured to be less than 10 Hz), the modal vibration of low frequency very easily causes the vibration fatigue of whole car, thereby lead to front guard bar assembly and the automobile body structure that links to each other with it to appear the fracture soon.
In order to solve the problem of rapid cracking of a front bumper assembly and a vehicle body structure connected with the front bumper assembly, the invention provides a front bumper mounting bracket 10, a front bumper body 20 matched with the front bumper mounting bracket 10, and an automobile adopting the front bumper mounting bracket 10 and the front bumper body 20.
As shown in fig. 1, the front guard mounting bracket 10 includes a cantilever arm 11, the cantilever arm 11 having a first arm portion 111 extending forward. The front end of the first arm portion 111 is provided with a first connection structure a so as to connect the front fender body 20. The first arm 111 is capable of passing through the through hole 301 in the front bumper assembly 30 such that the front end extends forward of the front bumper assembly 30.
Since the cantilever 11 of the front bumper mounting bracket 10 extends to the front of the front bumper assembly 30 through the via hole 301 of the front bumper assembly 30 without bypassing the front wall of the vehicle, the length of the cantilever 11 is shortened, and thus the bending rigidity is increased, and the modal vibration frequency is increased (the measured modal vibration frequency can be increased to 20Hz or more), so that the cracking of the front bumper assembly and the vehicle body structure connected to the front bumper assembly can be delayed.
In the illustrated embodiment, the first connecting structure a is a through hole through which a bolt passes, the bottom surface of the front bumper body 20 is supported on the top surface of the front end of the first arm 111, a threaded hole is provided on the bottom surface of the front bumper body 20, and the bolt passes through the through hole of the first arm 111 and is screwed into the threaded hole, so that the front bumper mounting bracket 10 is connected with the front bumper body 20 through the bolt. In the figure, the first connection structure a comprises two through holes which are staggered in the front-rear direction.
Specifically, as shown in fig. 1, the cantilever 11 further includes a second arm portion 112, where the second arm portion 112 is formed by bending a rear end of the first arm portion 111 downward, so that the cantilever 11 is substantially L-shaped, and a second connection structure b is provided at a lower end of the second arm portion 112 to connect with the frame. The cantilever 11 in this shape has high supporting strength and rigidity, so that the modal vibration frequency can be further raised, and the cracking can be further delayed.
In the illustrated embodiment, the second connecting structure b is a through hole through which a bolt passes, a threaded hole is provided in the front end face of the frame rail 50, and the bolt passes through the through hole of the second arm 112 and is screwed into the threaded hole, so that the front fender bracket 10 and the frame rail 50 are connected by the bolt. In the figure, the first connection structure a comprises four through holes, and the four through holes are arranged in a diamond shape.
Specifically, as shown in fig. 1, the left and right sides of the front bumper mounting bracket 10 are respectively provided with a cantilever 11, and the front ends of the two cantilevers 11 are used to jointly support and connect the front bumper body 20, so that the connection reliability of the front bumper body 20 and the front bumper mounting bracket 10 can be effectively improved.
The two cantilevers 11 are connected through the connecting plate 12, the connecting plate 12 is a bending plate with the upper side bent forwards relative to the lower side, and the bending plate is arranged, so that the vertical mode of the front guard mounting bracket 10 can be further improved, and the structural stability of the front guard mounting bracket 10 is better.
Specifically, as shown in fig. 1, a reinforcing plate 13 is disposed between a first arm 111 and a second arm 112 of the cantilever 11, a connecting plate 12 is connected between the two reinforcing plates 13, a joint position of the first arm 111 and the second arm 112 (i.e., a bending position of the L-shaped cantilever 11) is provided with a reinforcing rib 14, and edges of the first arm 111 and edges of the second arm 112 are provided with flanges. The reinforcing plate 13, the reinforcing ribs 14 and the flanging can further improve the vertical mode of the cantilever 11, so that the structural stability of the front guard bar mounting bracket 10 is better.
Specifically, as shown in fig. 1, the reinforcing plates 13 and the connecting plates 12 are provided with weight reducing holes, in the drawing, two reinforcing plates 13 are respectively provided with a weight reducing hole, and the connecting plates 12 are provided with three weight reducing holes. In this way, the torsional mode of the front guard mounting bracket 10 can be improved, so that the structural stability of the front guard mounting bracket 10 is better.
In the illustrated embodiment, the front bumper mounting bracket 10 has a laterally symmetrical structure and is of an integrally formed structure, so that the structural stability is better and the processing and forming are facilitated.
As shown in fig. 2, two connecting arms are respectively provided on the left and right sides of the front bumper body 20, namely, a first connecting arm 21 and a second connecting arm 22 located outside the first connecting arm 21. The first connecting arm 21 is provided with a third connecting structure c for connecting to the frame. A fourth connecting structure d is provided on the second connecting arm 22 to connect the vehicle body 60.
Through setting up first linking arm 21 and second linking arm 22, can effectively improve the local modal distribution of front guard body 20 on the one hand, especially with the torsional mode performance of improving more obvious, on the other hand plays auxiliary stay effect, makes front guard body 20 install more firm to make front guard assembly's structural stability better.
Specifically, the front bumper body 20 further includes a main body portion 23, a shield plate 24 provided on the front side below the main body portion 23, and bent pipes 25 provided on the left and right sides of the main body portion 23. The main body portion 23 of the front guard body 20 is supported on the front end top surface of the first arm portion 111 of the front guard mounting bracket 10.
As shown in fig. 3, the automobile includes the front bumper mounting bracket 10, the front bumper body 20, and the front bumper assembly 30 described above. As shown in connection with fig. 4, the front bumper assembly 30 is located below the front bumper body 20.
As shown in fig. 3, the first arm 111 of the front bumper mounting bracket 10 extends through the front bumper assembly 30 to the front of the front bumper assembly 30, and as shown in fig. 5, the via holes 301 through which the first arm 111 passes are provided on the grill area 302 of the front bumper assembly 30, specifically, one via hole 301 is provided on each of the upper left and upper right sides of the grill area 302.
As shown in fig. 3 and 6 in combination, the lower end of the second wall portion 112 of the front-bumper mounting bracket 10 is attached to the front end face of the frame rail 50. The vehicle is further provided with a front impact beam 40, the front impact beam 40 extending in the left-right direction, the front impact beam 40 being attached to the front side of the second arm portion 112, that is, the second arm portion 112 being attached between the frame rail 50 and the front impact beam 40. The arrangement makes full use of the arrangement space of the front side of the automobile, so that the front bumper assembly is compact and stable in structure.
The front guard mounting bracket, the front guard body and the automobile provided by the invention are described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (7)
1. The front guard mounting bracket is characterized in that the front guard mounting bracket (10) is of a left-right symmetrical integrated structure, the left side and the right side of the front guard mounting bracket (10) are respectively provided with a cantilever (11), the two cantilevers (11) are connected through a connecting plate (12), and the connecting plate (12) is a bending plate with the upper side bent forwards relative to the lower side;
the cantilever (11) is provided with a first arm part (111) extending forwards, the front end of the first arm part (111) is provided with a first connecting structure (a) for connecting the front bumper body (20), and the first arm part (111) can pass through a through hole (301) on the front bumper assembly (30) so that the first connecting structure (a) extends to the front of the front bumper assembly (30);
the cantilever (11) further comprises a second arm part (112), the second arm part (112) is formed by bending the rear end of the first arm part (111) downwards, and a second connecting structure (b) for connecting the frame longitudinal beam (50) is arranged at the lower end of the second arm part (112).
2. Front bumper mounting bracket according to claim 1, characterized in that a reinforcing plate (13) is arranged between the first arm (111) and the second arm (112) of the two cantilevers (11), the connecting plate (12) is connected between the two reinforcing plates (13), the joint position of the first arm (111) and the second arm (112) is provided with a reinforcing rib (14), and the edges of the first arm (111) and the second arm (112) are provided with turned edges.
3. Front bumper mounting bracket according to claim 2, characterized in that both the reinforcing plate (13) and the connecting plate (12) are provided with lightening holes.
4. Front bumper body, characterized in that the front bumper body (20) is used together with the front bumper mounting bracket (10) according to any one of claims 1-3, and the front bumper body (20) is connected to and supported on the top surface of the front end of the first arm portion (111) of the front bumper mounting bracket (10).
5. Front bumper body according to claim 4, characterized in that the left and right sides of the front bumper body (20) are respectively provided with two connecting arms, namely a first connecting arm (21) and a second connecting arm (22) positioned outside the first connecting arm (21), the first connecting arm (21) is provided with a third connecting structure (c) for connecting a frame, and the second connecting arm (22) is provided with a fourth connecting structure (d) for connecting a vehicle body (60).
6. An automobile comprising a front bumper assembly (30), characterized by further comprising a front bumper mounting bracket (10) according to any one of claims 1-3 and a front bumper body (20) according to any one of claims 4-5, wherein the front bumper assembly (30) is provided with a via (301) through which a first arm (111) of the front bumper mounting bracket (10) passes.
7. The vehicle according to claim 6, further comprising a front bumper beam (40) extending in a left-right direction, wherein the cantilever (11) of the front bumper mounting bracket (10) includes a second arm portion (112), the second arm portion (112) is formed by bending down a rear end of the first arm portion (111), the second arm portion (112) is attached to a front end face of the frame rail (50), and the front bumper beam (40) is attached to a front side of the second arm portion (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011400730.2A CN114590215B (en) | 2020-12-04 | 2020-12-04 | Front guard bar mounting bracket, front guard bar body and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011400730.2A CN114590215B (en) | 2020-12-04 | 2020-12-04 | Front guard bar mounting bracket, front guard bar body and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114590215A CN114590215A (en) | 2022-06-07 |
| CN114590215B true CN114590215B (en) | 2024-03-19 |
Family
ID=81802761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011400730.2A Active CN114590215B (en) | 2020-12-04 | 2020-12-04 | Front guard bar mounting bracket, front guard bar body and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114590215B (en) |
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| JPH1178967A (en) * | 1997-09-09 | 1999-03-23 | Nissan Shatai Co Ltd | Front end structure of frame |
| KR19990018377U (en) * | 1997-11-10 | 1999-06-05 | 이관기 | Car bumper guard bar |
| JP2000038098A (en) * | 1998-07-22 | 2000-02-08 | Suzuki Motor Corp | Bumper mounting structure |
| US6231093B1 (en) * | 1999-02-02 | 2001-05-15 | Ron D. Storer | Push bar mounting system |
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| JP2018075911A (en) * | 2016-11-08 | 2018-05-17 | トヨタ自動車株式会社 | Mounting structure of bumper reinforcement |
| CN208134274U (en) * | 2018-04-27 | 2018-11-23 | 北京长安汽车工程技术研究有限责任公司 | A kind of vehicle and its body shear thick stick bracket |
| CN109733312A (en) * | 2019-02-22 | 2019-05-10 | 奇瑞汽车股份有限公司 | The mounting structure of radiator grid assembly |
| CN209600434U (en) * | 2019-01-30 | 2019-11-08 | 东风汽车集团有限公司 | Han Qu prevents front bumper impact failure device and its mounting structure when testing |
| CN210116563U (en) * | 2019-02-26 | 2020-02-28 | 北京汽车股份有限公司 | Fender mounting bracket for vehicle and vehicle with same |
| CN211684976U (en) * | 2020-01-19 | 2020-10-16 | 中国重汽集团济南动力有限公司 | Preceding lower protection assembly with bumper installation function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2942098C (en) * | 2015-09-16 | 2022-03-01 | Wabash National, L.P. | Rear impact guard |
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2020
- 2020-12-04 CN CN202011400730.2A patent/CN114590215B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1178967A (en) * | 1997-09-09 | 1999-03-23 | Nissan Shatai Co Ltd | Front end structure of frame |
| KR19990018377U (en) * | 1997-11-10 | 1999-06-05 | 이관기 | Car bumper guard bar |
| JP2000038098A (en) * | 1998-07-22 | 2000-02-08 | Suzuki Motor Corp | Bumper mounting structure |
| US6231093B1 (en) * | 1999-02-02 | 2001-05-15 | Ron D. Storer | Push bar mounting system |
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| JP2018075911A (en) * | 2016-11-08 | 2018-05-17 | トヨタ自動車株式会社 | Mounting structure of bumper reinforcement |
| CN206654012U (en) * | 2017-04-07 | 2017-11-21 | 神龙汽车有限公司 | Front anticollision beam of automobile assembly |
| CN107117123A (en) * | 2017-04-26 | 2017-09-01 | 上汽通用汽车有限公司 | A kind of body structure of bumper holder and vehicle |
| CN207360266U (en) * | 2017-11-07 | 2018-05-15 | 重庆易纳科技有限公司 | A kind of bumper holder that can reduce connecting sewing |
| CN208134274U (en) * | 2018-04-27 | 2018-11-23 | 北京长安汽车工程技术研究有限责任公司 | A kind of vehicle and its body shear thick stick bracket |
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| CN109733312A (en) * | 2019-02-22 | 2019-05-10 | 奇瑞汽车股份有限公司 | The mounting structure of radiator grid assembly |
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| CN211684976U (en) * | 2020-01-19 | 2020-10-16 | 中国重汽集团济南动力有限公司 | Preceding lower protection assembly with bumper installation function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114590215A (en) | 2022-06-07 |
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