CN111703391B - Anti-collision structure device at front end of automobile - Google Patents
Anti-collision structure device at front end of automobile Download PDFInfo
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- CN111703391B CN111703391B CN202010685802.6A CN202010685802A CN111703391B CN 111703391 B CN111703391 B CN 111703391B CN 202010685802 A CN202010685802 A CN 202010685802A CN 111703391 B CN111703391 B CN 111703391B
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- square
- longitudinal beam
- collision
- front longitudinal
- shaped
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 45
- 238000005192 partition Methods 0.000 claims description 26
- 230000000694 effects Effects 0.000 abstract description 9
- 206010039203 Road traffic accident Diseases 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000016261 weight loss Diseases 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005457 optimization 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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- 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
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
-
- 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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The application discloses an anti-collision structure device at the front end of an automobile, which comprises a front anti-collision beam, two absorption boxes, a front longitudinal beam and a supporting plate, wherein the front longitudinal beam corresponds to the absorption boxes one by one, the front longitudinal beam is of a closed dodecagon frame structure formed by combining 4U-shaped frames, and the cross section of the front longitudinal beam is of a cross frame structure with a hollow inside; two absorption boxes are respectively and fixedly arranged on the inner sides of two ends of the front anti-collision beam, one end of the front longitudinal beam is fixedly connected to the front anti-collision beam through the absorption boxes, and the other end of the front longitudinal beam is fixedly connected to the supporting plate. The front end anti-collision structure device for automobile crashworthiness reduces the quality of an automobile body. The device has changed the cross-sectional shape of preceding longitudinal beam, selects more reasonable overall arrangement scheme, discovers that the dodecagon has better collision energy-absorbing effect in four, six, octagon, can strengthen the crashproof performance of vehicle, when taking place the traffic accident, reduces passenger's casualties as far as possible.
Description
Technical Field
The application relates to an anti-collision structure device at the front end of an automobile.
Background
With the rapid increase of the number of passenger cars, the casualties caused by car collision accidents are continuously increased. The design of the frontal collision safety performance of automobiles is highly valued by the automobile industry. The frontal collision is a direct collision between the vehicle head and an obstacle. There are three types that are 100% rigid barrier collisions, 40% overlap offset frontal collisions, and 25% overlap offset frontal collisions, respectively, and 100% rigid barrier collisions are used for the study herein. When a car collides, the body structure is first deformed and in a very short time, the passengers interact with the restraint system of the car. The automobile body structure is reasonably and optimally designed, and the deformation energy absorption effect of the anti-collision structure can be exerted to a greater extent, so that stable and gentle acceleration is provided for protecting passengers. Therefore, whether the vehicle body structure is reasonable is a very important foundation for the safety of the personnel in the vehicle, and is also a foundation for the design of the safety performance of the vehicle. The front anti-collision structure of the automobile is improved, for example, the shape, thickness, material and the like of the front anti-collision beam, the energy absorption box and the front longitudinal beam are changed, so that riding safety can be effectively improved. At present, the design of an energy absorption mechanism in the automobile industry is far from reaching an upper limit, the traditional energy absorption mechanism design and the metal material have no performance advantages, and the optimization of the material and the structure of the energy absorption mechanism is still to be further improved.
Disclosure of Invention
The aim of the application is to provide an anti-collision structure device at the front end of a car, aiming at the technical problems in the prior art.
The front end energy absorbing mechanism of the automobile mainly comprises a front anti-collision beam, an energy absorbing box and a front longitudinal beam. The main effect of front crashproof roof beam absorbs the energy and the stress that produce the collision through deformation of self, reduces the intensity that energy that the transmission was acted on the energy-absorbing box backward, and the energy-absorbing box plays the main role and absorbs the energy that front crashproof roof beam transmitted when the car front received the striking, and front longitudinal beam not only plays the effect of supporting the front engine compartment of car, still plays the effect of bearing longitudinal load simultaneously. The device mainly absorbs impact energy when collision occurs during medium-high speed running, and prevents energy from being transmitted to the cockpit, so that the safety of a driver and passengers is ensured.
The anti-collision structure mainly absorbs energy through compression deformation when an automobile collision occurs, and the compression deformation is the compression distance when the front-end anti-collision structure is crushed and deformed in an accident, and comprises the deformation of a front anti-collision beam, an energy-absorbing box and a front longitudinal beam. For the same working condition, when the vehicle collides with a certain vehicle speed, the smaller the front deformation displacement is, the more residual energy can be absorbed when the vehicle collides with the vehicle at a higher speed, the less impact kinetic energy is transferred to the passenger cabin, and passengers are safer.
The anti-collision structure device of the front end of the automobile is characterized by comprising a front anti-collision beam, two absorption boxes, a front longitudinal beam and a supporting plate, wherein the front longitudinal beam corresponds to the absorption boxes one by one, the front longitudinal beam is of a closed dodecagon frame structure formed by combining 4U-shaped frames, and the cross section of the front longitudinal beam is of a cross frame structure with a hollow inside; the two absorption boxes are respectively and fixedly arranged on the inner sides of two ends of the front anti-collision beam, one end of the front longitudinal beam is fixedly connected to the front anti-collision beam through the absorption boxes, and the other end of the front longitudinal beam is fixedly connected to the supporting plate.
The anti-collision structure device of the front end of the automobile is characterized in that the front longitudinal beam is formed by combining 4 identical U-shaped frames, each U-shaped frame comprises 2 identical inner angles, and the angle of each inner angle is 90-100 degrees, preferably 95 degrees.
An anticollision structure device of car front end, its characterized in that preceding crashproof roof beam includes an arc bent plate and locates the inboard two same hollow square return bends of this arc bent plate, be equipped with the clearance between two square return bends and be parallel to each other, the arc length of two square return bends and arc bent plate is the same.
The anti-collision structure device of the front end of the automobile is characterized in that a wedge-shaped edge block is fixedly arranged at the position, close to the end, of the left end and the right end of the inner side of each square bent pipe, the inclined surface of the wedge-shaped edge block faces the end of the square bent pipe, the wedge-shaped edge blocks at the left end and the right end of the two square bent pipes are aligned up and down respectively, and the two wedge-shaped edge blocks on the same square bent pipe are in mirror symmetry; the absorption box is fixedly arranged at a position between the inner side surface of the end part of the square bent pipe and the inclined surface of the wedge-shaped edge block.
The anti-collision structure device of the front end of the automobile is characterized in that the absorption box comprises a small square partition plate and a large square partition plate, four corners of the small square partition plate and four corners of the large square partition plate are respectively subjected to round corner treatment, a plurality of layers of square sleeves with the same length and width are arranged between the small square partition plate and the large square partition plate, and weight-reducing buffer ribs are arranged between two adjacent layers of square sleeves; the small square partition plate of the absorption box is fixedly arranged at a position between the inner side surface of the end part of the square bent pipe and the inclined surface of the wedge-shaped edge block, and one end of the absorption box provided with the large square partition plate is fixedly connected with one end of the front longitudinal beam.
An anticollision structure device of car front end, its characterized in that still includes the plug-in pipe piece that the appearance is square, is provided with the cross slotted hole that matches with the front longitudinal beam appearance in the one end of plug-in pipe piece, and the one end of front longitudinal beam inserts tightly and establishes in the cross slotted hole of plug-in pipe piece, and the plug-in pipe piece is cooperated again and is inserted tightly and establish in the absorption box is close to in the square sleeve pipe of the first layer of big square baffle, realizes the fixed connection between front longitudinal beam one end and the absorption box.
The anti-collision structure device at the front end of the automobile is characterized in that the number of layers of square sleeves arranged between the small square partition plate and the large square partition plate is 3-4.
The beneficial effect that this application obtained is:
1. the front anti-collision beam has a hollow structure with a higher degree, so that the weight of the front anti-collision structure device for the automobile anti-collision performance is greatly reduced, the driving performance of the automobile is improved, and the impact force born by the automobile during collision is also reduced. The cross-sectional shape of the front longitudinal beam is changed, a more reasonable layout scheme is selected, the dodecagon is found to have better collision energy absorption effect compared with the quadric, hexagons and octagons, the anti-collision performance of the vehicle can be enhanced, and the casualties of passengers are reduced as much as possible when traffic accidents occur.
2. In the front end anti-collision structure device of the automobile crashworthiness, parts needing to be replaced and maintained are few, so that the maintenance cost after the automobile crashes is reduced, the design and the manufacture of an anti-collision beam before the automobile can be well guided to industry, the anti-collision performance of the automobile can be enhanced, and the casualties of passengers can be reduced as much as possible when traffic accidents occur.
Drawings
FIG. 1 is a schematic structural view of a front end collision avoidance structure device for vehicle crashworthiness of the present application;
FIG. 2 is a schematic structural view of the front side rail of the present application;
FIG. 3 is a schematic view of the structure of the absorbent box of the present application;
FIG. 4 is a schematic view of the structure of a front impact beam of the present application;
in the figure: the anti-collision device comprises a front anti-collision beam, a 101-square bent pipe, 102-wedge-shaped edge blocks, 2-energy-absorbing boxes, 201-large square partition plates, 202-square sleeves, 203-small square partition plates, 204-weight-reduction buffer edges, 3-front longitudinal beams, 3 a-U-shaped frames and 4-supporting plates.
Detailed Description
The invention will be further illustrated with reference to specific examples, but the scope of the invention is not limited thereto.
Examples: reference is made to FIGS. 1-4
The utility model provides an anticollision structure device of car front end, includes preceding crashproof roof beam 1, two absorption boxes 2, with the front longitudinal beam 3 and backup pad 4 of absorption box 2 one-to-one, front longitudinal beam 3 is the closed dodecagon frame construction that forms by 4U shaped frame 3a combination, and the cross section of front longitudinal beam 3 is inside hollow cross frame construction. The two absorption boxes 2 are respectively and fixedly arranged on the inner sides of two ends of the front anti-collision beam 1, one end of the front longitudinal beam 3 is fixedly connected to the front anti-collision beam 1 through the absorption boxes 2, and the other end of the front longitudinal beam 3 is fixedly connected to the supporting plate 4.
Referring to fig. 1, a schematic view of a state in which the front side member 3 is caused to bend and deform when the front impact beam 1 is subjected to a strong impact. The front longitudinal beam 3 of the application is of a dodecagon structure, the front longitudinal beam 3 is formed by combining 4 identical U-shaped frames, each U-shaped frame comprises 2 identical inner angles, and the angle of each inner angle is 90-100 degrees, preferably 95 degrees, so that when the front longitudinal beam is subjected to strong impact force, the front longitudinal beam is bent, and meanwhile, the cross section of the front longitudinal beam can be crushed and deformed more strongly and the transverse section of the front longitudinal beam is crushed and deformed more energy is absorbed.
In contrast to fig. 4, the front anti-collision beam 1 includes an arc-shaped bending plate and two identical hollow square bent pipes 101 disposed on the inner side of the arc-shaped bending plate, a gap is disposed between the two square bent pipes 101 and the two square bent pipes are parallel to each other, and the arc lengths of the two square bent pipes 101 and the arc-shaped bending plate are the same. The purpose of setting a certain clearance between two square return bends 101 is that when current crashproof roof beam 1 receives the striking of stronger intensity, two square return bends 101 all have certain compression deformation space, prevent to have the interference each other when compression deformation.
In contrast to fig. 4, a wedge-shaped edge block 102 is fixedly arranged at the position, close to the end, of the left end and the right end of the inner side of each square bent pipe 101, the inclined surface of the wedge-shaped edge block 102 faces the end of the square bent pipe 101, the wedge-shaped edge blocks 102 at the left end and the right end of the two square bent pipes 101 are aligned up and down respectively, and the two wedge-shaped edge blocks 102 on the same square bent pipe 101 are in mirror symmetry; the absorption box 2 is fixedly arranged at a position between the inner side surface of the end part of the square bent pipe 101 and the inclined surface of the wedge-shaped edge block 102. The wedge-shaped edge block 102 is arranged at the inner sides of two ends of the front anti-collision beam 1, so that two absorption boxes 2 are conveniently and fixedly arranged in parallel, and the stress direction of the absorption boxes 2 is prevented from pointing to the arc center of the front anti-collision beam 1, thereby influencing the anti-collision effect.
In contrast to fig. 3, the absorption box 2 includes a small square separator 203 and a large square separator 201, four corners of the small square separator 203 and the large square separator 201 are rounded, 3 layers or 4 layers of square sleeves 202 with the same length and width are arranged between the small square separator 203 and the large square separator 201, and weight-reducing buffer ribs 204 are arranged between two adjacent layers of square sleeves 202; the small square partition plate 203 of the absorption box 2 is fixedly arranged at a position between the inner side surface of the end part of the square bent pipe 101 and the inclined surface of the wedge-shaped edge block 102, and one end of the absorption box 2 provided with the large square partition plate 201 is fixedly connected with one end of the front longitudinal beam 3.
In order to facilitate the fixed connection between one end of the front side member 3 and the absorption box 2, the device of the present application further comprises an insert tube block. The appearance of the plug-in pipe block is a square structure matched with the inner space of the square sleeve 202, a cross slot matched with the appearance of the front longitudinal beam 3 is arranged in one end of the plug-in pipe block, and the other end of the plug-in pipe block is sealed. One end of the front longitudinal beam 3 is tightly inserted into the cross slot hole of the plug-in pipe block, and the plug-in pipe block is tightly inserted into the first layer square sleeve 202 of the absorption box 2 close to the large square partition 201 in a matching way, so that the fixed connection between one end of the front longitudinal beam 3 and the absorption box 2 is realized.
The number of layers of square bushings 202 is marked as a first layer, a second layer, a third layer, etc. in order along the direction of the large square separator 201 toward the small square separator 203. When the front end anti-collision structure device of the automobile crashworthiness receives strong impact force, the plug-in pipe block can pass through the weight-reduction buffer rib 204 and squeeze into the second layer square sleeve 202 under the slightly deformed state, and if the received impact force is large enough, the plug-in pipe block can also continue to squeeze into the third layer square sleeve 202.
The purpose of setting up on this application absorption box 2 and subtracting heavy buffering rib 204 is not only in order to promote crashproof effect through the cushioning effect, and the square sleeve pipe 202 atress of absorption box 2 is difficult to concentrate to the setting of subtracting heavy buffering rib 204, prevents that square sleeve pipe 202 from breaking.
What has been described in this specification is merely an enumeration of possible forms of implementation for the inventive concept and may not be considered limiting of the scope of the present invention to the specific forms set forth in the examples.
Claims (4)
1. An anti-collision structure device at the front end of an automobile is characterized by comprising a front anti-collision beam (1), two absorption boxes (2), a front longitudinal beam (3) and a supporting plate (4), wherein the front longitudinal beam (3) corresponds to the absorption boxes (2) one by one, the front longitudinal beam (3) is a closed dodecagon frame structure formed by combining 4U-shaped frames (3 a), and the cross section of the front longitudinal beam (3) is a cross frame structure with a hollow inside;
the two absorption boxes (2) are respectively and fixedly arranged at the inner sides of two ends of the front anti-collision beam (1), one end of the front longitudinal beam (3) is fixedly connected to the front anti-collision beam (1) through the absorption boxes (2), and the other end of the front longitudinal beam (3) is fixedly connected to the supporting plate (4);
the front longitudinal beam (3) is formed by combining 4 identical U-shaped frames, each U-shaped frame comprises 2 identical inner angles, and the angle of each inner angle is 90-100 degrees;
the front anti-collision beam (1) comprises an arc-shaped bent plate and two identical hollow square bent pipes (101) arranged on the inner side of the arc-shaped bent plate, a gap is arranged between the two square bent pipes (101) and the two square bent pipes are parallel to each other, and the arc lengths of the two square bent pipes (101) and the arc-shaped bent plate are identical;
the absorption box (2) comprises a small square partition board (203) and a large square partition board (201), four corners of the small square partition board (203) and the large square partition board (201) are subjected to round corner treatment, a plurality of layers of square sleeves (202) with the same length and width are arranged between the small square partition board (203) and the large square partition board (201), and weight-reducing buffer ribs (204) are arranged between two adjacent layers of square sleeves (202); the small square partition plate (203) of the absorption box (2) is fixedly arranged at a position between the inner side surface of the end part of the square bent pipe (101) and the inclined surface of the wedge-shaped edge block (102), and one end of the absorption box (2) provided with the large square partition plate (201) is fixedly connected with one end of the front longitudinal beam (3);
the novel absorption box comprises a front longitudinal beam (3), and is characterized by further comprising a square plug-in pipe block, wherein the shape of the square plug-in pipe block is provided with a cross slot matched with the shape of the front longitudinal beam (3) in one end of the plug-in pipe block, one end of the front longitudinal beam (3) is tightly inserted into the cross slot of the plug-in pipe block, the plug-in pipe block is tightly inserted into a first layer of square sleeve (202) of the absorption box (2) close to a large square partition plate (201) in a matched mode, and the fixed connection between one end of the front longitudinal beam (3) and the absorption box (2) is achieved.
2. An automotive front end collision avoidance structure as claimed in claim 1, in which the angle of said internal angle is 95 °.
3. The anti-collision structure device for the front end of an automobile according to claim 1, wherein a wedge-shaped rib (102) is fixedly arranged at the position, close to the end, of the left end and the right end of the inner side of each square bent pipe (101), the inclined surfaces of the wedge-shaped rib (102) face the end of each square bent pipe (101), the wedge-shaped ribs (102) at the left end and the right end of each square bent pipe (101) are aligned up and down respectively, and the two wedge-shaped ribs (102) on the same square bent pipe (101) are in mirror symmetry.
4. An anti-collision structure device for the front end of an automobile as claimed in claim 1, characterized in that the number of layers of square bushings (202) provided between the small square partition plate (203) and the large square partition plate (201) is 3-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685802.6A CN111703391B (en) | 2020-07-16 | 2020-07-16 | Anti-collision structure device at front end of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685802.6A CN111703391B (en) | 2020-07-16 | 2020-07-16 | Anti-collision structure device at front end of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111703391A CN111703391A (en) | 2020-09-25 |
| CN111703391B true CN111703391B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010685802.6A Active CN111703391B (en) | 2020-07-16 | 2020-07-16 | Anti-collision structure device at front end of automobile |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090101725A (en) * | 2008-03-24 | 2009-09-29 | 주식회사 성우하이텍 | Crash box in automotive bumper system |
| DE102009035782A1 (en) * | 2009-08-01 | 2010-03-25 | Daimler Ag | Energy absorption element i.e. crash-box, for car, has supporting regions facing longitudinal beam and bend cross beam, and elongate region extending between supporting regions, where elongate region is tapered in extending direction |
| JP2013018395A (en) * | 2011-07-12 | 2013-01-31 | Mazda Motor Corp | Front vehicle body structure of vehicle |
| CN206186958U (en) * | 2016-10-20 | 2017-05-24 | 保定长安客车制造有限公司 | Vehicle collision energy -absorbing structure |
| JP2018075907A (en) * | 2016-11-08 | 2018-05-17 | マツダ株式会社 | Impact absorption structure for vehicle |
| CN212373311U (en) * | 2020-07-16 | 2021-01-19 | 浙江工业大学 | Front-end anti-collision structure device with collision resistance of automobile |
-
2020
- 2020-07-16 CN CN202010685802.6A patent/CN111703391B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090101725A (en) * | 2008-03-24 | 2009-09-29 | 주식회사 성우하이텍 | Crash box in automotive bumper system |
| DE102009035782A1 (en) * | 2009-08-01 | 2010-03-25 | Daimler Ag | Energy absorption element i.e. crash-box, for car, has supporting regions facing longitudinal beam and bend cross beam, and elongate region extending between supporting regions, where elongate region is tapered in extending direction |
| JP2013018395A (en) * | 2011-07-12 | 2013-01-31 | Mazda Motor Corp | Front vehicle body structure of vehicle |
| CN206186958U (en) * | 2016-10-20 | 2017-05-24 | 保定长安客车制造有限公司 | Vehicle collision energy -absorbing structure |
| JP2018075907A (en) * | 2016-11-08 | 2018-05-17 | マツダ株式会社 | Impact absorption structure for vehicle |
| CN212373311U (en) * | 2020-07-16 | 2021-01-19 | 浙江工业大学 | Front-end anti-collision structure device with collision resistance of automobile |
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| Publication number | Publication date |
|---|---|
| CN111703391A (en) | 2020-09-25 |
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