CN114851999A - New energy automobile energy-absorbing bumper - Google Patents
New energy automobile energy-absorbing bumper Download PDFInfo
- Publication number
- CN114851999A CN114851999A CN202210613210.2A CN202210613210A CN114851999A CN 114851999 A CN114851999 A CN 114851999A CN 202210613210 A CN202210613210 A CN 202210613210A CN 114851999 A CN114851999 A CN 114851999A
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- Prior art keywords
- box
- bumper
- energy
- absorbing
- energy absorption
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 28
- 238000010521 absorption reaction Methods 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 15
- 239000011229 interlayer Substances 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 239000003814 drug Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 2
- 210000003437 trachea Anatomy 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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- 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
-
- 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
- B60R19/20—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 containing mainly gas or liquid, e.g. inflatable
- B60R19/205—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 containing mainly gas or liquid, e.g. inflatable inflatable in the direction of an obstacle upon impending impact, e.g. using air bags
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- 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
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/28—Metallic springs
-
- 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
- B60R19/38—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles
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- 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
- B60R19/44—Bumper guards
-
- 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
- B60R2019/242—Arrangements for mounting bumpers on vehicles on two vertical sleeves, e.g. on energy absorber ends
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a new energy automobile energy-absorbing bumper, which relates to the field of energy-absorbing bumpers and comprises a bumper shell, wherein the bumper shell is arranged at the tail part of an automobile, an inner bumper is arranged on the inner side surface of the bumper shell, the inner bumper is tightly attached to the inner side surface of the bumper shell, the inner bumper is of a hollow structure, an electric telescopic device is arranged in the middle of the inner bumper, the tail end of the electric telescopic device is connected into a trigger box in a sliding manner, two sides of the trigger box are respectively connected into an energy-absorbing box reinforcing device through connecting rods, and the electric telescopic device can drive the connecting rods and the energy-absorbing box reinforcing device in a manner of starting the trigger box so as to enable the energy-absorbing box to absorb energy.
Description
Technical Field
The invention relates to the field of energy-absorbing bumpers, in particular to an energy-absorbing bumper of a new energy automobile.
Background
With the rapid increase of automobile reserves, the road traffic safety problem becomes an important problem concerned by governments and society, and most road traffic death accidents are caused by the passing of drivers, so that sudden braking caused by the distraction of the drivers often occurs, and in recent years, new energy automobiles with different military projections are more difficult to brake after the speed of the automobiles is increased because the automobiles are accelerated quickly, the whole automobile body is lighter, so that the braking is more difficult.
Disclosure of Invention
The invention aims to provide an energy-absorbing bumper of a new energy automobile, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a new energy automobile energy-absorbing bumper, includes the bumper shell, the afterbody at the car is installed to the bumper shell, be equipped with interior bumper on the inboard face of bumper shell, the medial surface of bumper shell is hugged closely to interior bumper, interior bumper is hollow structure, the intermediate position of interior bumper is equipped with electronic telescoping device, electronic telescoping device's terminal sliding connection is in triggering the box, the both sides that trigger the box are connected respectively in energy-absorbing box reinforcing apparatus through the connecting rod, electronic telescoping device can drive connecting rod and energy-absorbing box reinforcing apparatus in order to start the mode that triggers the box, and then makes the energy-absorbing box can the absorbed energy.
Preferably, the outermost side face of the bumper shell is provided with an interlayer, foamed aluminum is filled in the interlayer, and an elastic support column is further arranged in the interlayer.
Preferably, the two ends of the inner bumper are curved surfaces, and the inner side surface of the inner bumper is provided with a mounting hole which is connected with the energy absorption box in a sealing manner.
Preferably, the electric telescopic device comprises an electric push rod, a connecting support, a spring, a fixed column and a telescopic rod, the electric push rod is installed on a chassis, an output shaft of the electric push rod is connected to the connecting support, both sides of the top of the connecting support are provided with buckles, spring installation grooves are formed in the buckles, the spring is installed in the spring installation groove, one end of the spring is abutted against the buckles, the other end of the spring is abutted against wing-shaped bosses of the fixed column, the bottom of the fixed column is fixed on the automobile chassis, the telescopic rod is connected with the connecting support through a movable connecting seat, two side faces of the movable connecting seat are provided with clamping grooves, the buckles are clamped in the clamping grooves, the tail end of the telescopic rod is further provided with a striking plate, and a striking table is arranged on the striking plate;
the energy-absorbing bumper of the new energy automobile is characterized in that the wing-shaped boss and the fixed column are welded and formed, and the contact surface of the spring of the wing-shaped boss is preferably arranged, so that the energy-absorbing bumper of the new energy automobile is characterized in that: the trigger box comprises a box body, a guide chute, a safety partition piece, a sealing box and guide chute side walls, wherein the box body is fixed in the inner bumper, the sealing box is arranged in the box body, the guide chute is arranged on the upper surface of the sealing box, the safety partition piece is arranged in the sealing box, a medicine bag is arranged between the safety partition piece and the side walls of the sealing box, and the guide chute side walls are positioned at two ends of the box body;
air outlet holes are formed in two side faces of one end, far away from the medicine bag, of the sealing box;
the outer surface of the side wall of the guide groove is provided with a guide groove, and the guide surface of the guide groove is a mirror surface;
and a gas channel is arranged between the bottom surface of the safety partition piece and the inner bottom surface of the sealing box.
Preferably, the connecting rod includes transverse connecting rod, energy-absorbing box link and gleitbretter, transverse connecting rod and energy-absorbing box link welded connection, the gleitbretter is connected between transverse connecting rod and guiding groove, be equipped with the gasbag of connection on the box body internal side on the tip outer end face of gleitbretter, the gasbag passes through the trachea with the venthole and is connected.
Preferably, the energy absorption box reinforcing device comprises a cross connecting frame, a polygonal bracket and reinforcing columns, the cross connecting frame is connected to the tail end of the connecting end of the energy absorption box, the end point of the cross connecting frame is connected to the inner side surface of the polygonal bracket, and the reinforcing columns are installed on the outer side surface of the polygonal bracket;
and a plurality of stress notches are arranged on the inner side wall of the polygonal support.
Preferably, the energy absorption box comprises an energy absorption box shell and a mounting plate, a crumpling guide groove is formed in the energy absorption box shell, a crumpling guide hole is formed in the crumpling guide groove, a reinforcing column is connected in the crumpling guide hole in a sliding mode, and the energy absorption box shell is mounted on a longitudinal beam of the new energy automobile through the mounting plate.
Compared with the prior art, the invention has the beneficial effects that:
1. when the automobile is in slight rear-end collision, collision energy can be absorbed through the arranged bumper shell, the foamed aluminum in the interlayer and the elastic support columns, so that the automobile body is protected;
2. when the automobile is in strong collision, the electric telescopic device and the trigger box can be excited, the reinforcing column for reinforcing the energy absorption box is withdrawn from the energy absorption box, a structure which is easier to collapse is generated on the energy absorption box, the energy absorption box is helped to absorb energy and collapse, and the automobile body is further protected.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention mounted on a vehicle body;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of the internal structure of the present invention;
FIG. 5 is a schematic view of an electric telescopic apparatus according to the present invention;
FIG. 6 is a schematic view of a partial cross-sectional structure of the retractable device and the trigger box of the present invention;
FIG. 7 is an enlarged view of the structure at C in FIG. 6;
FIG. 8 is a schematic view of a linkage and energy-absorbing box reinforcement of the present invention;
FIG. 9 is an enlarged view of the structure B in FIG. 8;
FIG. 10 is a schematic view of the structure of the sealing box and the air outlet;
FIG. 11 is a schematic view of a crash box construction.
In the figure: 1-a bumper housing; 11-elastomeric support columns;
2-an inner bumper; 21-mounting holes;
3, an electric telescopic device; 31-an electric push rod; 32-a connecting bracket; 321-buckling; 33-a spring; 34-fixed column; 341-wing-like bosses; 35-a telescopic rod; 36-a movable connecting seat; 361-card slot; 37-an impact plate; 371-an impact table;
4-trigger the box; 41-box body; 42-a guide chute; 43-safety partition sheet; 44-a sealed box; 441-air outlet holes; 45-channel side walls; 451-a guide groove; 46-a medicine bag;
5-a connecting rod; 51-a transverse link; 52-energy absorption box attachment end; 53-sliding vane; 54-an air bag;
6-reinforcing device of energy absorption box; 61-cross connecting frame; 62-polygonal support; 621-stress notch; 63-reinforcing columns;
7-an energy absorption box; 71-crash box housing; 72-a mounting plate; 73-a collapsing guide groove; 74-collapse guide hole.
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.
Referring to fig. 1 to 11, the present invention provides a technical solution: the utility model provides a new energy automobile energy-absorbing bumper, includes bumper shell 1, the afterbody at the car is installed to bumper shell 1, be equipped with interior bumper 2 on bumper shell 1's the medial surface, the medial surface of bumper shell 1 is hugged closely to interior bumper 2, interior bumper 2 is hollow structure, the intermediate position of interior bumper 2 is equipped with electronic telescoping device 3, electronic telescoping device 3's terminal sliding connection is in triggering box 4, the both sides that trigger box 4 are connected in energy-absorbing box reinforcing apparatus 6 through connecting rod 5 respectively, electronic telescoping device 3 can drive connecting rod 5 and energy-absorbing box reinforcing apparatus 6 in order to start the mode that triggers box 4, and then makes energy-absorbing box 7 can the energy absorption.
In this embodiment, the outermost side of the bumper shell 1 is provided with an interlayer filled with foamed aluminum, the interlayer is further provided with an elastic support column 11, the interlayer filled with foamed aluminum can effectively buffer load fluctuation, and meanwhile, the foamed aluminum is a good energy-absorbing material, so that the energy-absorbing effect of the bumper is further improved, and in the event of slight rear-end collision, the damage caused by collision can be well eliminated only through the foamed aluminum and the elastic support column 11.
In this embodiment, two ends of the inner bumper 2 are curved surfaces, and the inner side surface of the inner bumper 2 is provided with a mounting hole 21, wherein the mounting hole 21 is connected with the crash box 7 in a sealing manner.
In this embodiment, the electric telescopic device 3 comprises an electric push rod 31, a connecting bracket 32, a spring 33, a fixed column 34 and a telescopic rod 35, the electric push rod 31 is arranged on the chassis, the output shaft of the electric push rod 31 is connected on the connecting bracket 32, the two sides of the top of the connecting bracket 32 are both provided with a buckle 321, a spring mounting groove is arranged in the buckle 321, the spring 33 is mounted in the spring mounting groove, and one end of the spring 33 is pressed against the buckle 321, one end is pressed against the wing-shaped boss 341 of the fixing column 34, the bottom of the fixed column 34 is fixed on the chassis of the automobile, the telescopic rod 35 is connected with the connecting bracket 32 through a movable connecting seat 36, two side surfaces of the movable connecting seat 36 are respectively provided with a clamping groove 361, the buckle 321 is clamped in the clamping groove 361, the tail end of the telescopic rod 35 is also provided with an impact plate 37, and an impact table 371 is arranged on the impact plate 37;
the wing-shaped boss 341 and the fixed column 34 are welded and formed, an anti-slip groove is formed in the surface, in contact with the spring 33, of the wing-shaped boss 341, the electric push rod 31 is connected to a brake system of an automobile, when a vehicle controller of the new energy automobile detects that the automobile is in an emergency braking state, the electric push rod 31 is controlled to push the connecting support 32 and the telescopic rod 35 out by a minimum distance (about 5mm), so that the top end of the telescopic rod 35 is pushed against the inner wall of the inner bumper 2, when the automobile generates a slight rear-end collision, due to the energy absorption effect of the foamed aluminum in the interlayer and the elastic support column 11, the force transmitted by the bumper shell 1 and the inner bumper 2 and acting on the telescopic rod 35 is not enough to push the telescopic rod 35 out of the clamping groove 361 and the limiting effect of the buckle 321, and after the emergency braking is stopped, the electric push rod 31 pulls the telescopic rod 35 back to the original position.
In this embodiment, the trigger box 4 includes a box body 41, a guiding slot 42, a safety partition plate 43, a sealing box 44 and a guiding slot side wall 45, the box body 41 is fixed in the inner bumper 2, the sealing box 44 is disposed in the box body 41, the guiding slot 42 is disposed on the upper surface of the sealing box 44, the safety partition plate 43 is disposed in the sealing box 44, a medicine bag 46 is disposed between the safety partition plate 43 and the side wall of the sealing box 44, and the guiding slot side wall 45 is located at two ends of the box body 41;
the outer surface of the guide groove side wall 45 is provided with a guide groove 451, and the guide surfaces of the guide groove 451 are mirror surfaces;
a gas channel is arranged between the bottom surface of the safety partition sheet 43 and the inner bottom surface of the sealing box 44;
when strong collision occurs, the collision energy exceeds the maximum load of the foamed aluminum and the elastic supporting columns 11, the energy can directly act on the telescopic rods 35, at the moment, when the energy is too large, the telescopic rods 35 and the movable connecting seats 36 can exceed the limits of the clamping grooves 361 and the buckles 321, the telescopic rods 35 and the movable connecting seats 36 are separated from the connecting supports 32, the electric push rods 31 are protected, the separated telescopic rods 35 are driven by the too large energy, the collision table 371 can collide the safety partition plates 43 to directly collide the medicine bags 46, sodium azide in the medicine bags 46 is triggered, and a large amount of nitrogen gas is generated in a short time.
In this embodiment, the link 5 includes a transverse link 51, an energy-absorbing box connecting end 52 and a sliding piece 53, the transverse link 51 is welded to the energy-absorbing box connecting end 52, the sliding piece 51 is connected between the transverse link 51 and the guide groove 451, an air bag 54 connected to the inner side of the box body 41 is arranged on the outer end face of the end portion of the sliding piece 51, the air bag 54 is connected to the air outlet hole 441 through an air pipe, the air bag 54 is filled with a large amount of generated nitrogen, and the transverse link 51 and the energy-absorbing box connecting end 52 are moved through the rapid expansion of the air bag 54.
In this embodiment, the energy-absorbing box reinforcing device 6 comprises a cross connecting frame 61, a polygonal bracket 62 and a reinforcing column 63, wherein the cross connecting frame 61 is connected to the end of the energy-absorbing box connecting end 52, the end point of the cross connecting frame 61 is connected to the inner side surface of the polygonal bracket 62, and the reinforcing column 63 is installed on the outer side surface of the polygonal bracket 62;
the inner side wall of the polygonal bracket 62 is provided with a plurality of stress notches 621, and the energy absorption box connecting end 52 can push the character connecting frame 61, the polygonal bracket 62 and the reinforcing column 63 to move.
In this embodiment, the crash box 7 includes a crash box case 71 and a mounting plate 72, the crash box case 71 is provided with a crush guide groove 73, the collapse guiding groove 73 is provided with a collapse guiding hole 74, the collapse guiding hole 74 is connected with a reinforcing column 63 in a sliding way, the energy absorption box shell 71 is arranged on a longitudinal beam of the new energy automobile through a mounting plate 72, the fixed column 63 is originally inserted in a crumple guide hole 74 on a crumple guide groove 73, after the separation, since the whole energy-absorbing box 7 is provided with the crumple guide slot 73 and the crumple guide hole 74 at weak positions, the energy-absorbing box can absorb energy and crumple quickly, thereby protecting the vehicle body, when the reinforcing pillars 63 do not escape from the crush guides 74, the entire crash box 7 can be given a good strength due to the supporting function of the reinforcing pillars 63, thereby preventing deformation thereof during long-term normal driving or a light collision.
The working principle is as follows: in normal driving, the electric push rod 31 connected with the brake system of the automobile pushes the telescopic rod 35 out of a very small distance through the connecting bracket 32 when the automobile is suddenly braked, so that the top end of the telescopic rod 35 is pressed against the inner wall of the inner bumper 2, and at the moment, if no rear-end collision occurs, the telescopic rod 35 is pulled back by the electric push rod 31; if the collision is slight, due to the energy absorption effect of the foamed aluminum and the elastic support columns 11 in the interlayer, the force which is transmitted through the bumper shell 1 and the inner bumper 2 and acts on the telescopic rod 35 is not enough to enable the telescopic rod 35 to be rushed out of the clamping groove 361 and the limiting effect of the buckle 321, and after the sudden braking and the collision are stopped, the electric push rod 31 pulls the telescopic rod 35 back to the original position; if the collision is strong, the telescopic rod 35 and the movable connecting seat 36 exceed the limit of the clamping groove 361 and the buckle 321, so that the telescopic rod 35 and the movable connecting seat 36 are separated from the connecting bracket 32, thereby protecting the electric push rod 31, the separated telescopic rod 35 is driven by excessive energy, the collision table 371 can collide the safety partition plate 43 to directly collide on the medicine bag 46, sodium azide in the medicine bag 46 is triggered, a large amount of nitrogen is generated in a short time, the air bag 54 can be filled with the generated large amount of nitrogen, the transverse connecting rod 51 and the energy-absorbing box connecting end 52 are moved through the quick expansion of the air bag 54, the energy-absorbing box connecting end 52 can push the character connecting frame 61, the polygonal bracket 62 and the reinforcing column 63 to move, the moving reinforcing column 63 is separated from the collapse guide hole 74, and the positions of the collapse guide groove 73 and the collapse guide hole 74 on the whole energy-absorbing box 7 are weak, the energy absorption box can absorb energy and contract quickly to protect the vehicle body, the inner side wall of the polygonal support 62 is provided with a plurality of stress notches 621, when the energy absorption box 7 contracts, the stress notches 621 are easy to break, the support can be crushed together, and the support is prevented from obstructing the contraction of the energy absorption box 7.
Based on the above, when the automobile has slight rear-end collision, the energy of the collision can be absorbed by the arranged bumper shell, the foamed aluminum in the interlayer and the elastic support columns, so that the automobile body is protected; when the automobile is in strong collision, the electric telescopic device and the trigger box can be excited, the reinforcing column for reinforcing the energy absorption box is withdrawn from the energy absorption box, a structure which is easier to collapse is generated on the energy absorption box, the energy absorption box is helped to absorb energy and collapse, and the automobile body is further protected.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (8)
1. The utility model provides a new energy automobile energy-absorbing bumper which characterized in that: including bumper shell (1), the afterbody at the car is installed in bumper shell (1), bumper (2) in being equipped with on the medial surface of bumper shell (1), the medial surface of bumper shell (1) is hugged closely in interior bumper (2), interior bumper (2) are hollow structure, the intermediate position of interior bumper (2) is equipped with electronic telescoping device (3), the terminal sliding connection of electronic telescoping device (3) is in triggering box (4), the both sides that trigger box (4) are connected in energy-absorbing box reinforcing apparatus (6) through connecting rod (5) respectively, electronic telescoping device (3) can drive connecting rod (5) and energy-absorbing box reinforcing apparatus (6) in order to start the mode that triggers box (4), and then make energy-absorbing box (7) can the energy absorption.
2. The new energy automobile energy absorption bumper according to claim 1, characterized in that: the outer side face of the bumper shell (1) is provided with an interlayer, foamed aluminum is filled in the interlayer, and an elastic support column (11) is further arranged in the interlayer.
3. The new energy automobile energy absorption bumper according to claim 2, characterized in that: the two ends of the inner bumper (2) are curved surfaces, the inner side surface of the inner bumper (2) is provided with a mounting hole (21), and the mounting hole (21) is connected with the energy absorption box (7) in a sealing mode.
4. The new energy automobile energy absorption bumper according to claim 1, characterized in that: the electric telescopic device (3) comprises an electric push rod (31), a connecting support (32), a spring (33), a fixed column (34) and a telescopic rod (35), the electric push rod (31) is installed on a chassis, an output shaft of the electric push rod (31) is connected to the connecting support (32), buckles (321) are arranged on two sides of the top of the connecting support (32), a spring installation groove is formed in each buckle (321), the spring (33) is installed in the spring installation groove, one end of the spring (33) abuts against the corresponding buckle (321), one end of the spring (33) abuts against a wing-shaped boss (341) of the fixed column (34), the bottom of the fixed column (34) is fixed on the automobile chassis, the telescopic rod (35) is connected with the connecting support (32) through a movable connecting seat (36), and clamping grooves (361) are formed in two side faces of the movable connecting seat (36), the buckle (321) is clamped in the clamping groove (361), the tail end of the telescopic rod (35) is also provided with an impact plate (37), and the impact plate (37) is provided with an impact table (371);
the wing-shaped boss (341) and the fixing column (34) are welded and formed, and an anti-slip groove is formed in the surface, contacted with the spring (33), of the wing-shaped boss (341).
5. The new energy automobile energy absorption bumper according to claim 1, characterized in that: the trigger box (4) comprises a box body (41), a guide chute (42), a safety partition sheet (43), a sealing box (44) and guide chute side walls (45), the box body (41) is fixed in the inner bumper (2), the sealing box (44) is arranged in the box body (41), the guide chute (42) is arranged on the upper surface of the sealing box (44), the safety partition sheet (43) is arranged in the sealing box (44), a medicine bag (46) is arranged between the safety partition sheet (43) and the side walls of the sealing box (44), and the guide chute side walls (45) are positioned at two ends of the box body (41);
air outlet holes (441) are formed in two side faces of one end, far away from the medicine bag (46), of the sealing box (44);
the outer surface of the guide groove side wall (45) is provided with a guide groove (451), and the guide surfaces of the guide groove (451) are all mirror surfaces;
and a gas channel is arranged between the bottom surface of the safety partition sheet (43) and the inner bottom surface of the sealing box (44).
6. The new energy automobile energy absorption bumper according to claim 5, characterized in that: connecting rod (5) include horizontal connecting rod (51), energy-absorbing box link (52) and gleitbretter (53), horizontal connecting rod (51) and energy-absorbing box link (52) welded connection, gleitbretter (51) are connected between horizontal connecting rod (51) and guide slot (451), be equipped with gasbag (54) of connection on box body (41) medial surface on the tip outer terminal surface of gleitbretter (51), gasbag (54) pass through the trachea with venthole (441) and are connected.
7. The new energy automobile energy absorption bumper according to claim 6, characterized in that: the energy absorption box reinforcing device (6) comprises a cross connecting frame (61), a polygonal bracket (62) and reinforcing columns (63), wherein the cross connecting frame (61) is connected to the tail end of the connecting end (52) of the energy absorption box, the end points of the cross connecting frame (61) are connected to the inner side surface of the polygonal bracket (62), and the reinforcing columns (63) are installed on the outer side surface of the polygonal bracket (62);
and a plurality of stress notches (621) are arranged on the inner side wall of the polygonal bracket (62).
8. The new energy automobile energy absorption bumper according to claim 7, characterized in that: energy-absorbing box (7) are including energy-absorbing box casing (71) and mounting panel (72), be equipped with the guiding groove (73) that contracts of ulcerating on energy-absorbing box casing (71), it contracts bullnose (74) to be equipped with the ulcerate on the guiding groove (73) that contracts to contract, it has reinforcement post (63) to contract in bullnose (74) to burst, energy-absorbing box casing (71) are installed on new energy automobile's longeron through mounting panel (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210613210.2A CN114851999B (en) | 2022-05-31 | 2022-05-31 | New energy automobile energy-absorbing bumper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210613210.2A CN114851999B (en) | 2022-05-31 | 2022-05-31 | New energy automobile energy-absorbing bumper |
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| Publication Number | Publication Date |
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| CN114851999A true CN114851999A (en) | 2022-08-05 |
| CN114851999B CN114851999B (en) | 2024-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210613210.2A Active CN114851999B (en) | 2022-05-31 | 2022-05-31 | New energy automobile energy-absorbing bumper |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012166672A (en) * | 2011-02-14 | 2012-09-06 | Mazda Motor Corp | Die cast aluminum alloy-made crash can |
| CN105329197A (en) * | 2015-11-02 | 2016-02-17 | 重庆至信实业有限公司 | Energy absorption box of automobile front anti-collision beam |
| CN208515540U (en) * | 2018-06-19 | 2019-02-19 | 四川航天职业技术学院 | A kind of multi-buffer energy-absorbing automotive bumper |
| CN213768472U (en) * | 2020-09-08 | 2021-07-23 | 上海凌云工业科技有限公司凌云汽车技术分公司 | Novel separable steel-plastic mixed anti-collision beam energy absorption box |
| CN214084141U (en) * | 2020-10-19 | 2021-08-31 | 常州恒河车辆部件有限公司 | Multi-layer buffer automobile front bumper framework |
-
2022
- 2022-05-31 CN CN202210613210.2A patent/CN114851999B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012166672A (en) * | 2011-02-14 | 2012-09-06 | Mazda Motor Corp | Die cast aluminum alloy-made crash can |
| CN105329197A (en) * | 2015-11-02 | 2016-02-17 | 重庆至信实业有限公司 | Energy absorption box of automobile front anti-collision beam |
| CN208515540U (en) * | 2018-06-19 | 2019-02-19 | 四川航天职业技术学院 | A kind of multi-buffer energy-absorbing automotive bumper |
| CN213768472U (en) * | 2020-09-08 | 2021-07-23 | 上海凌云工业科技有限公司凌云汽车技术分公司 | Novel separable steel-plastic mixed anti-collision beam energy absorption box |
| CN214084141U (en) * | 2020-10-19 | 2021-08-31 | 常州恒河车辆部件有限公司 | Multi-layer buffer automobile front bumper framework |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114851999B (en) | 2024-07-05 |
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