CN114590215A - Front bumper installing support, front bumper body and automobile - Google Patents
Front bumper installing support, front bumper body and automobile Download PDFInfo
- Publication number
- CN114590215A CN114590215A CN202011400730.2A CN202011400730A CN114590215A CN 114590215 A CN114590215 A CN 114590215A CN 202011400730 A CN202011400730 A CN 202011400730A CN 114590215 A CN114590215 A CN 114590215A
- Authority
- CN
- China
- Prior art keywords
- front bumper
- mounting bracket
- arm portion
- arm
- bumper mounting
- 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.)
- Granted
Links
- 238000005452 bending Methods 0.000 claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 6
- 230000003111 delayed effect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002146 bilateral effect Effects 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
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
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 bumper mounting bracket, a front bumper body matched with the front bumper mounting bracket, and an automobile adopting the front bumper mounting bracket and the front bumper body. Because the cantilever of the front bumper mounting bracket penetrates through the through hole on the front bumper assembly to extend to the front of the front bumper assembly without bypassing the front wall of the automobile, the length of the cantilever is shortened, the bending rigidity is increased, the modal vibration frequency is increased (the modal vibration frequency can be increased to more than 20Hz through measurement), and the cracking of the front bumper assembly and a vehicle body structure connected with the front bumper assembly can be delayed.
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 a part added on the basis of the front bumper assembly, and the safety performance of the automobile can be improved. The front bumper assembly specifically comprises a front bumper body and a front bumper 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 is enabled to extend to the front of the front bumper assembly by bypassing the front wall of the automobile, and the front bumper body is connected to the front side of the cantilever.
When the automobile adopts the front bumper assembly, the front bumper assembly and the automobile body structure connected with the front bumper assembly are easy to crack after the automobile runs for a short time.
In view of the above, how to avoid the risk of short-time cracking of the front bumper assembly and the vehicle body structure connected with the front bumper assembly is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the above technical problem, the present invention provides a front bumper assembly, where the front bumper mounting bracket includes a cantilever having a first arm portion extending forward, a first connecting structure for connecting to a front bumper body is disposed at a front end of the first arm portion, and the first arm portion can pass through a through hole in the front bumper assembly, so that the first connecting structure extends to the front of the front bumper assembly.
Optionally, the cantilever further comprises a second arm portion, the second arm portion is formed by bending a rear end of the first arm portion downwards, and a second connecting structure for connecting a frame rail is arranged at a lower end of the second arm portion.
Optionally, the left side and the right side of the front bumper mounting bracket are respectively provided with one cantilever, the two cantilevers are connected through a connecting plate, and the connecting plate is a bent plate with an upper side bent forwards relative to a lower side.
Optionally, a reinforcing plate is arranged between the first arm and the second arm of each of the two cantilevers, the connecting plate is connected between the two reinforcing plates, a reinforcing rib is arranged at the joint position of the first arm and the second arm, and flanges are arranged at the edges of the first arm and the second arm.
Optionally, weight reduction holes are formed in both the reinforcing plates and the connecting plate.
Optionally, the front bumper mounting bracket is of a bilaterally symmetrical integrally-formed structure.
The invention also provides a front bumper body which is matched with any one of the front bumper mounting brackets for use, and the front bumper body is connected with and supported on the top surface of the front end of the first arm part of the front bumper mounting bracket.
Optionally, the left and right sides of preceding fender thick stick body respectively is equipped with two linking arms, is first linking arm respectively and is located the second linking arm in the first linking arm outside, be equipped with the third connection structure who is used for connecting the frame on the first linking arm, be equipped with the fourth connection structure who is used for connecting the automobile body on the second linking arm.
The invention also provides an automobile comprising a front bumper assembly, a front bumper mounting bracket according to any one of the preceding claims and a front bumper body according to any one of the preceding claims, wherein the front bumper assembly is provided with a through hole for the first arm portion of the front bumper mounting bracket to pass through.
Optionally, the automobile further includes a front impact beam extending in the left-right direction, the suspension arm of the front bumper mounting bracket includes a second arm portion formed by bending a rear end of the first arm portion downward, the second arm portion is connected to a front end surface of the side frame member, and the front impact beam is connected to a front side of the second arm portion.
Analysis shows that the reason why the front bumper assembly and the vehicle body structure connected with the front bumper assembly crack in a short time is as follows:
in the past, the front bumper mounting bracket is arranged at the bottom of the front bumper assembly, so that a cantilever of the front bumper mounting bracket needs to go around the front wall of an automobile to extend to the front of the front bumper assembly to be connected with the front bumper body, the length of the cantilever is very long, the bending rigidity is relatively low, low-frequency modal vibration (the modal frequency of the conventional front bumper assembly is measured to be less than 10Hz) is easy to occur, the low-frequency modal vibration easily causes vibration fatigue of the whole automobile, and the front bumper assembly and a vehicle body structure connected with the front bumper assembly are rapidly cracked.
In contrast, in the present embodiment, the cantilever of the front bumper mounting bracket extends to the front of the front bumper assembly through the through hole in the front bumper assembly without passing around the front wall of the automobile, so the length of the cantilever is shortened, the bending rigidity is increased, the modal vibration frequency is increased (the measured modal vibration frequency can be increased to more than 20 Hz), and thus the cracking of the front bumper assembly and the vehicle body structure connected with the front bumper assembly can be delayed.
Drawings
FIG. 1 is a schematic view of one embodiment of a front bumper mounting bracket provided in accordance with the present invention;
FIG. 2 is a schematic view of an embodiment of a front bumper body provided in accordance with the present invention;
FIG. 3 is a schematic view of a portion of an automotive vehicle employing the front bumper mounting bracket of FIG. 1 and the front bumper body of FIG. 2;
FIG. 4 is a schematic view of FIG. 3 with the front bumper mounting bracket and front bumper body 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 impact beam and front bumper mounting bracket.
The reference numerals are explained below:
10 a front bumper mounting bracket, 11 a cantilever, 111 a first arm part, 112 a second arm part, 12 a connecting plate, 13 a reinforcing plate, 14 a reinforcing rib, a first connecting structure and b a second connecting structure;
20, a front bumper body, 21, a first connecting arm, 22, a second connecting arm, 23, a main body part, 24, a guard plate, 25, a third connecting structure and d, a fourth connecting structure;
30 front bumper assembly, 301 via hole, 302 grid;
40 front impact beam; 50 frame rails; 60 vehicle body.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
In the description of the invention, the transverse direction of the automobile is taken as the left-right direction, the position relatively close to the transverse center is taken as the inner position and the position relatively far away from the transverse center is taken as the outer position in the left-right direction, the longitudinal direction of the automobile is taken as the front-back direction, the position relatively close to the automobile head is taken as the front position, and the position relatively far away from the automobile head is taken as the back position.
In the past, after a car runs for a short time, a front bumper assembly (comprising a front bumper bracket and a front bumper book) and a car body structure (comprising a car frame and a car body) connected with the front bumper assembly crack, so that the safety of the car is low, and the running noise is high.
The analysis suggests that the reason why cracking occurs in a shorter time is that:
in the past, the front bumper mounting bracket is arranged at the bottom of the front bumper assembly, so that a cantilever of the front bumper mounting bracket needs to go around the front wall of an automobile to extend to the front of the front bumper assembly to be connected with the front bumper body, the length of the cantilever is very long, the bending rigidity is relatively small, low-frequency modal vibration (the modal frequency of the conventional front bumper assembly is measured to be less than 10Hz) is easy to occur, the low-frequency modal vibration easily causes vibration fatigue of the whole automobile, and the front bumper assembly and an automobile body structure connected with the front bumper assembly are cracked quickly.
In order to solve the problem that the front bumper assembly and a vehicle body structure connected with the front bumper assembly crack quickly, the invention provides a front bumper mounting bracket 10, a front bumper body 20 matched with the front bumper mounting bracket 10 for use, and an automobile adopting the front bumper mounting bracket 10 and the front bumper body 20.
As shown in fig. 1, the front fender mounting bracket 10 includes a suspension arm 11, and the suspension arm 11 has a first arm portion 111 extending forward. The front end of the first arm portion 111 is provided with a first connecting structure a for connecting the front bumper body 20. The first arm portion 111 can pass through the through hole 301 of the front bumper assembly 30 so 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 through hole 301 of the front bumper assembly 30 without passing around the front wall of the automobile, the length of the cantilever 11 is shortened, the bending rigidity is increased, the modal vibration frequency is increased (the measured modal vibration frequency can be increased to more than 20 Hz), and the cracking of the front bumper assembly and the vehicle body structure connected with 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 portion 111, a threaded hole is formed in the bottom surface of the front bumper body 20, and the bolt passes through the through hole of the first arm portion 111 and is screwed into the threaded hole, so that the front bumper mounting bracket 10 and the front bumper body 20 are connected by the bolt. In the figure, the first connecting structure a includes two through holes, and the two through holes are arranged in a staggered manner in the front-rear direction.
Specifically, as shown in fig. 1, the suspension arm 11 further includes a second arm portion 112, the second arm portion 112 is formed by bending a rear end of the first arm portion 111 downward, so that the suspension arm 11 is substantially "L" shaped, and a lower end of the second arm portion 112 is provided with a second connecting structure b for connecting to the vehicle frame. The cantilever 11 in such a shape has high support strength and rigidity, so that the modal vibration frequency can be further increased, and cracking can be further delayed.
In the illustrated embodiment, the second connecting structure b is a through hole through which a bolt is inserted, a screw hole is provided in the front end surface of the side member 50, and the bolt is screwed into the screw hole after passing through the through hole of the second arm portion 112, so that the front fender bar mounting bracket 10 and the side member 50 are connected by the bolt. In the figure, the first connecting structure a includes four through holes, and the four through holes are arranged in a diamond shape.
Specifically, as shown in fig. 1, the front bumper mounting bracket 10 is provided with a cantilever 11 on each of the left and right sides thereof, and the front bumper body 20 is supported and connected by the front ends of the two cantilevers 11, so that the connection reliability between the front bumper body 20 and the front bumper mounting bracket 10 can be effectively improved.
Link to each other through connecting plate 12 between two cantilevers 11, connecting plate 12 is the relative downside of upside and bends the bent plate forward, sets up to the bent plate, can further promote the vertical mode of front bumper installing support 10, makes front bumper installing support 10's structural stability better.
Specifically, as shown in fig. 1, a reinforcing plate 13 is provided between a first arm portion 111 and a second arm portion 112 of the cantilever 11, the connecting plate 12 is connected between the two reinforcing plates 13, a reinforcing rib 14 is provided at a joint position of the first arm portion 111 and the second arm portion 112 (i.e., a bending position of the "L" -shaped cantilever 11), and flanges are provided at an edge of the first arm portion 111 and an edge of the second arm portion 112. The reinforcing plate 13, the reinforcing ribs 14 and the flanges can further improve the vertical mode of the cantilever 11, so that the structural stability of the front bumper mounting bracket 10 is better.
Specifically, as shown in fig. 1, the reinforcing plates 13 and the connecting plate 12 are provided with lightening holes, in the figure, two reinforcing plates 13 are provided with one lightening hole respectively, and the connecting plate 12 is provided with three lightening holes. In this way, the torsional mode of the front bumper mounting bracket 10 can be enhanced, and the structural stability of the front bumper mounting bracket 10 is improved.
In the scheme shown in the figure, the front bumper mounting bracket 10 is of a bilateral symmetry structure and is of an integrally formed structure, so that the structural stability is better, and the processing and forming are convenient.
As shown in fig. 2, two connecting arms, namely, a first connecting arm 21 and a second connecting arm 22 located outside the first connecting arm 21, are respectively provided on the left and right sides of the front bumper body 20. The first connecting arm 21 is provided with a third connecting structure c for connecting the frame. The second connecting arm 22 is provided with a fourth connecting structure d for connecting the vehicle body 60.
Through setting up first connecting arm 21 and second connecting arm 22, can effectively improve the local mode distribution of preceding fender thick stick body 20 on the one hand, especially more obvious in order to improve torsional mode performance, on the other hand plays the auxiliary stay effect, makes preceding fender thick stick body 20 install more firm to the structural stability who makes preceding fender thick stick assembly is better.
Specifically, the front bumper body 20 further includes a main body 23, a fender 24 provided on the front side below the main body 23, and bent tubes 25 provided on the left and right sides of the main body 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 above-described front bumper mounting bracket 10, a front bumper body 20, and a front bumper assembly 30. As shown in fig. 4, the front bumper assembly 30 is located below the front bumper body 20.
As shown in fig. 3, the first arm portion 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, a through hole 301 through which the first arm portion 111 passes is provided in a grill area 302 of the front bumper assembly 30, and specifically, one through hole 301 is provided on each of the upper left side and the upper right side of the grill area 302.
As shown in fig. 3 and 6, the lower end of the second wall portion 112 of the front bumper mounting bracket 10 is connected to the front end surface of the frame side member 50. The automobile 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 connected to the front side of the second arm portion 112, that is, the second arm portion 112 being connected between the frame side member 50 and the front impact beam 40. With such an arrangement, the front side layout space of the automobile is fully utilized, and the structure of the front bumper assembly is compact and stable.
The front bumper mounting bracket, the front bumper body and the automobile provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The front bumper mounting bracket is characterized in that the front bumper mounting bracket (10) comprises a cantilever (11), 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 a front bumper body (20), and the first arm part (111) can penetrate through a through hole (301) in a front bumper assembly (30) so that the first connecting structure (a) extends to the front of the front bumper assembly (30).
2. The front fender mounting bracket of claim 1, wherein the suspension arm (11) further comprises a second arm portion (112), the second arm portion (112) is formed by bending a rear end of the first arm portion (111) downward, and a lower end of the second arm portion (112) is provided with a second connecting structure (b) for connecting the frame side member (50).
3. The front bumper mounting bracket according to claim 2, wherein the front bumper mounting bracket (10) is provided with a cantilever (11) on each of the left and right sides thereof, the two cantilevers (11) are connected to each other by a connecting plate (12), and the connecting plate (12) is a bent plate having an upper side bent forward relative to a lower side.
4. The front bumper mounting bracket (10) according to claim 3, wherein a reinforcing plate (13) is disposed between the first arm portion (111) and the second arm portion (112) of each of the two suspension arms (11), the connecting plate (12) is connected between the two reinforcing plates (13), a reinforcing rib (14) is disposed at a joint position of the first arm portion (111) and the second arm portion (112), and a flange is disposed at an edge of the first arm portion (111) and the second arm portion (112).
5. Front bumper mounting bracket (10) according to claim 4, characterised in that both said reinforcement plate (13) and said connecting plate (12) are provided with lightening holes.
6. Front bumper mounting bracket (10) according to any of claims 1-5, characterized in that the front bumper mounting bracket (10) is a side-to-side symmetrical one-piece structure.
7. A front bumper body, characterized in that the front bumper body (20) is used in cooperation with the front bumper mounting bracket (10) according to any one of claims 1 to 6, and the front bumper body (20) is connected to and supported on the top face of the front end of the first arm portion (111) of the front bumper mounting bracket (10).
8. The front bumper body as recited in claim 7, wherein two connecting arms are respectively disposed on the left and right sides of the front bumper body (20), namely a first connecting arm (21) and a second connecting arm (22) disposed outside the first connecting arm (21), a third connecting structure (c) for connecting the vehicle frame is disposed on the first connecting arm (21), and a fourth connecting structure (d) for connecting the vehicle body (60) is disposed on the second connecting arm (22).
9. Automobile comprising a front bumper assembly (30), further comprising a front bumper mounting bracket (10) according to any one of claims 1 to 6 and a front bumper body (20) according to any one of claims 7 to 8, wherein the front bumper assembly (30) is provided with a through hole (301) for passing the first arm portion (111) of the front bumper mounting bracket (10).
10. The automobile according to claim 9, further comprising a front impact beam (40) extending in the left-right direction, wherein the suspension arm (11) of the front bumper mounting bracket (10) includes a second arm portion (112), the second arm portion (112) is formed by bending a rear end of the first arm portion (111) downward, the second arm portion (112) is connected to a front end surface of the frame side member (50), and the front impact beam (40) is connected 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 true CN114590215A (en) | 2022-06-07 |
| CN114590215B CN114590215B (en) | 2024-03-19 |
Family
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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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| JP2000038098A (en) * | 1998-07-22 | 2000-02-08 | Suzuki Motor Corp | Bumper mounting structure |
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| 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 |
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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 |
-
2020
- 2020-12-04 CN CN202011400730.2A patent/CN114590215B/en active Active
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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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Also Published As
| Publication number | Publication date |
|---|---|
| CN114590215B (en) | 2024-03-19 |
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