CN115195651A

CN115195651A - New energy automobile energy-absorbing bumper

Info

Publication number: CN115195651A
Application number: CN202211065176.6A
Authority: CN
Inventors: 周海燕; 李波; 苏龙; 田晶
Original assignee: Songuo Motors Co Ltd
Current assignee: Songuo Motors Co Ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-10-18

Abstract

The invention provides an energy-absorbing bumper of a new energy automobile, and relates to the field of energy-absorbing bumpers. This new energy automobile energy-absorbing bumper, including the bumper, the rear end of bumper is provided with first buffer gear, first buffer gear's rear end is provided with second buffer gear, second buffer gear's rear end is provided with strikes elimination mechanism, first buffer gear includes first buffer board, the front end left and right sides portion of first buffer board all is provided with first inside groove, the top bottom of first inside groove all is provided with first spout, equal sliding connection has first slider in the first spout. The acting force is counteracted through the protection steel pipe, the acting force is transmitted to the first buffer mechanism, the second buffer mechanism and the impact elimination mechanism through the hydraulic buffer, under the combined action of the first buffer mechanism, the second buffer mechanism and the impact elimination mechanism, the acting force is buffered and absorbed, the acting force is reduced to the minimum, and the injury of a new energy automobile passenger generated when an accident occurs is reduced.

Description

New energy automobile energy-absorbing bumper

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

Along with the continuous development of the society, the number of automobile people is continuously increased, the problem of road traffic safety becomes a hot topic concerned by all countries and the current society, most of traffic accidents are caused by improper operation of drivers or other reasons, and sudden braking caused by distracted or fatigue driving of the drivers frequently occurs.

The existing new energy automobile energy-absorbing bumper mainly depends on the deformation of the bumper when in collision to buffer the generated impact force, has poor integral buffering and energy-absorbing capacity, and can not well protect and reduce the injury of passengers in the automobile body in an accident.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a new energy automobile energy-absorbing bumper, which solves the problems that the existing new energy automobile energy-absorbing bumper has poor integral buffering and energy-absorbing capacity, cannot better protect and reduce the damage of passengers in an automobile body in an accident.

In order to achieve the purpose, the invention is realized by the following technical scheme: the energy-absorbing bumper of the new energy automobile comprises a bumper, wherein a first buffer mechanism is arranged at the rear end of the bumper, a second buffer mechanism is arranged at the rear end of the first buffer mechanism, and an impact eliminating mechanism is arranged at the rear end of the second buffer mechanism;

the first buffer mechanism comprises a first buffer plate, a first inner groove is formed in the left and right portions of the front end of the first buffer plate, a first sliding groove is formed in the top bottom end of the first inner groove, a first sliding block is connected in the first sliding groove in a sliding mode, one end, close to the inner side, of the first sliding block is fixedly connected to the upper end and the lower end of the moving block respectively, the inner side of the moving block is fixedly connected to the top end of the rod body of a first telescopic rod, a first spring is fixedly connected to the outer side of the first telescopic rod, a triangular connecting piece is fixedly connected to the front end of the moving block, the middle of the triangular connecting piece is rotatably connected with one end of a first connecting column, the other end of the first connecting column is rotatably connected to the rear end of a connecting bolt, the front end of the connecting bolt is rotatably connected with one end of a second connecting column, the other end of the second connecting column is rotatably connected to the rear end of a concave block, and the left side and the right side of the middle of the front end of the first buffer plate are fixedly connected with a hydraulic buffer respectively.

Preferably, the second buffer mechanism comprises a second buffer plate, a second inner groove is formed in the left and right sides of the front end of the second buffer plate, a second sliding groove is formed in the top bottom end of the second inner groove, a second sliding block is connected to the inner side of the second sliding block in a sliding mode, one end, close to the inner side, of the second sliding block is fixedly connected to the upper end and the lower end of the fixed block respectively, the inner side of the fixed block is fixedly connected to the top end of a rod body of a second telescopic rod, a second spring is fixedly connected to the outer side of the second telescopic rod, a fixed rod is fixedly connected to the upper portion and the lower portion of the inner side of the second inner groove, the outer side of the fixed rod is connected to the upper portion and the lower portion of the left and right side of the fixed block in a sliding mode respectively, a first outer connecting block is fixedly connected to the front end of the fixed block, the front end of the first outer connecting block is rotatably connected to one end of a connecting rod, and the other end of the connecting rod is rotatably connected to the rear end of the second outer connecting block.

Preferably, the impact eliminating mechanism comprises a single-opening box, a placing groove is formed in the inner side of the front end of the single-opening box, a rubber plate is arranged at the rear end of the inner side of the placing groove, and an ACF (anisotropic conductive film) damping plate is arranged at the front end of the rubber plate.

Preferably, the outer side of the first buffer plate is provided with a buffer outer layer sleeve, the middle of the left side and the middle of the buffer outer layer sleeve are fixedly connected with connecting blocks, and the middle of each connecting block is connected with a sliding column in a sliding manner.

Preferably, the equal fixedly connected with trapezoidal piece in the left and right sides of second buffer board, the equal fixedly connected with sleeve in the outside of trapezoidal piece, telescopic front end inboard all is provided with the circular slot, equal sliding connection has spacing circle piece in the circular slot, the front end middle part fixedly connected with slip post of spacing circle piece, the front end of slip post is fixed connection respectively on the left and right sides of the rear end of bumper.

Preferably, the equal fixedly connected with connecting plate of downside on the rear end of single-ported case, the top bottom of connecting plate all is provided with a plurality of connecting hole.

Preferably, the front end equidistance of bumper is provided with a plurality of protection steel pipe, protection steel pipe adopts toughened polypropylene material injection moulding.

Preferably, the left side and the right side of the middle part of the rear end of the bumper are respectively and fixedly connected to the front end of the hydraulic buffer, and the positions of the middle part of the rear end of the bumper, which is close to the left side and the right side, are respectively and fixedly connected with the concave blocks.

Preferably, the bottom end of the cylinder body of the first telescopic rod on the left side is connected to the inner wall of the first inner groove on the left side, and the bottom end of the cylinder body of the first telescopic rod on the right side is connected to the inner wall of the first inner groove on the right side.

Preferably, the bottom end of the cylinder body of the second telescopic rod on the left side is connected to the inner wall of the second inner groove on the left side, and the bottom end of the cylinder body of the second telescopic rod on the right side is connected to the inner wall of the second inner groove on the right side.

The working principle is as follows: when the bumper is strongly impacted, the protective steel pipe is deformed and collapsed by impact force first, so as to counteract partial acting force, then the residual acting force is transmitted to the hydraulic buffer, the hydraulic buffer further generates a contraction phenomenon to drive the second connecting column connected with the concave block on two sides to move, the inward movement of the second connecting column can drive the first connecting column rotationally connected with the rear end of the connecting bolt to rotate, so that the outer side of the first connecting column is contacted with the oblique angle of the triangular connecting piece, the first connecting column has a supporting point position, the moving block is pushed inwards through the connection effect of the triangular connecting piece and the moving block, the operation of the moving block is more stable through the arranged first sliding block and the first sliding chute, the inward moving block extrudes the rod body of the first telescopic rod, so that the rod body of the first telescopic rod is retracted into the cylinder body of the first telescopic rod, the first spring on the outer side of the first telescopic rod is also extruded to generate the contraction phenomenon, so as to buffer and absorb energy, after the rod body slides to a certain position, the residual acting force is transmitted to the first telescopic rod body, the second connecting rod body is further transmitted to the outer side of the second telescopic rod, and the residual acting force is transmitted to the second telescopic rod, and the second telescopic rod is further transmitted to the buffer and absorbed energy through the buffer the outer side of the second telescopic rod, and the telescopic rod, so that the residual acting force is transmitted to the second telescopic rod, and the residual acting force is transmitted to the telescopic rod, and the telescopic rod, similarly, when last, the second buffer board carries out complete absorption to remaining effort through inside ACF buffer board and the rubber slab of the single port case of rear connection, through whole buffering energy-reducing in-process, through the effect of first buffer gear and second buffer gear for the effort that comes through the bumper conduction, through the combined action of buffering and lateral extrusion force, falls to the minimum with the effort that its collision produced, thereby reduces the injury that personnel received on the car.

The invention provides an energy-absorbing bumper of a new energy automobile. The method has the following beneficial effects:

1. according to the invention, a part of acting force and transfer acting force are counteracted through the protective steel pipe and the hydraulic buffer, then the acting force transferred by the hydraulic buffer can enable the moving block in the first buffer mechanism to move inwards and extrude the rod body of the first telescopic rod, so that the rod body of the first telescopic rod is accommodated in the cylinder body of the first telescopic rod, and meanwhile, the first spring outside the first telescopic rod can be extruded to generate a contraction phenomenon, so that the rest acting force can be buffered and absorbed, the second buffer mechanism is also based on the same principle, and under the combined action of the first buffer mechanism and the second buffer mechanism, when the bumper is collided, the generated impact acting force can be buffered and absorbed, so that the strong acting force generated by collision is reduced, the acting force is reduced to the lowest, and the serious problem of personnel injury caused by automobile collision is reduced.

2. According to the invention, through the arranged impact elimination mechanism, the ACF vibration damping plate made of ACF limit vibration damping materials is used as the energy buffering and absorbing layer, so that the residual acting force is absorbed by the first buffering mechanism and the second buffering mechanism, and is continuously reduced and eliminated through the energy absorbing function of the first buffering mechanism and the second buffering mechanism, thereby reducing the acting force transmitted to the body of the new energy automobile and further reducing the injury of a new energy automobile passenger in an accident.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic disassembled view of the first buffer mechanism of the present invention;

FIG. 4 is a schematic structural view of a second damping mechanism according to the present invention;

FIG. 5 is a schematic view of the internal structure of a second buffer plate according to the present invention;

fig. 6 is a schematic diagram of the inner structure of the single-port box of the invention.

Wherein, 1, a bumper; 2. a first buffer mechanism; 201. a first buffer plate; 202. a first inner tank; 203. a first chute; 204. a first slider; 205. a moving block; 206. a first telescopic rod; 207. a first spring; 208. a triangular connector; 209. a first connecting column; 210. a connecting bolt; 211. a second connecting column; 212. a concave block; 213. a hydraulic buffer; 214. a buffer outer layer sleeve; 215. connecting blocks; 3. a second buffer mechanism; 301. a second buffer plate; 302. a second inner tank; 303. a second chute; 304. a second slider; 305. a fixed block; 306. a second telescopic rod; 307. a second spring; 308. fixing the rod; 309. a first external connection block; 310. a connecting rod; 311. a second external connection block; 4. an impact eliminating mechanism; 401. a single-port box; 402. a placement groove; 403. a rubber plate; 404. an ACF buffer plate; 405. a connecting plate; 406. connecting holes; 5. a trapezoidal block; 6. a sleeve; 7. a circular groove; 8. a sliding post; 9. a limiting round block; 10. and (5) protecting the steel pipe.

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.

Example (b):

as shown in fig. 1 to 6, an energy-absorbing bumper for a new energy automobile according to an embodiment of the present invention includes a bumper 1, a first buffer mechanism 2 is disposed at a rear end of the bumper 1, a second buffer mechanism 3 is disposed at a rear end of the first buffer mechanism 2, and an impact eliminating mechanism 4 is disposed at a rear end of the second buffer mechanism 3;

first buffer gear 2 includes first buffer board 201, the front end left and right sides portion of first buffer board 201 all is provided with first inside groove 202, the top bottom of first inside groove 202 all is provided with first spout 203, equal sliding connection has first slider 204 in the first spout 203, the upper and lower end at the movable block 205 of interior one end difference fixed connection of leaning on of first slider 204, the equal fixed connection in the body of rod top of first telescopic link 206 in the inboard of movable block 205, the equal fixedly connected with first spring 207 in the outside of first telescopic link 206, the equal fixedly connected with triangle connecting piece 208 in front end of movable block 205, the middle part of triangle connecting piece 208 all rotates with the one end of first spliced pole 209 to be connected, the other end of first spliced pole 209 all rotates the rear end of connecting at connecting bolt 210, the front end of connecting bolt 210 all rotates with the one end of second spliced pole 211 to be connected, the other end of second spliced pole 211 all rotates the rear end of connecting at concave block 212, the left and right sides of the front end of first buffer board 201 respectively fixedly connected with hydraulic buffer 213. When the bumper 1 is strongly impacted, the protective steel tube 10 is deformed and collapsed by impact force first, so that a part of acting force is counteracted, then the rest acting force is transmitted to the hydraulic buffer 213, the hydraulic buffer 213 further generates a contraction phenomenon, and drives the second connecting column 211 connected to the concave block 212 at two sides to move, the inward movement of the second connecting column 211 drives the first connecting column 209 rotatably connected to the rear end of the connecting bolt 210 to rotate, so that the outer side of the first connecting column 209 is in contact with the oblique angle of the triangular connecting piece 208, the first connecting column 209 has a supporting point position, and further the moving block 205 is pushed inwards by the connection between the triangular connecting piece 208 and the moving block 205, and the first spring 207 outside the first telescopic rod 206 is extruded through the first sliding block 204 and the first sliding chute 203, so that the movement is more stable, the moving block 205 moving inwards extrudes the rod body of the first telescopic rod 206, further the rod body of the first telescopic rod 206 is retracted into the cylinder body, and simultaneously the rest acting force of the first spring 207 outside the first telescopic rod 206 is also extruded, so that the rest acting force is not transmitted to the buffer sleeve 214, and the buffer mechanism is further transmitted to the buffer outer layer of the buffer mechanism 201.

The second buffer mechanism 3 includes a second buffer plate 301, the left and right portions of the front end of the second buffer plate 301 are provided with a second inner groove 302, the top and bottom ends of the second inner groove 302 are provided with a second sliding groove 303, the second sliding groove 303 is internally provided with a second sliding block 304, the inner end of the second sliding block 304 close to the inner end is fixedly connected to the upper and lower ends of a fixed block 305, the inner side of the fixed block 305 is fixedly connected to the top end of a rod body of a second telescopic rod 306, the outer side of the second telescopic rod 306 is fixedly connected to a second spring 307, the inner side of the second inner groove 302 is fixedly connected to a fixed rod 308, the outer side of the fixed rod 308 is respectively connected to the upper and lower portions of the left and right sides of the fixed block 305 in a sliding manner, the front end of the fixed block 305 is fixedly connected to a first outer connecting block 309, the front end of the first outer connecting block 309 is rotatably connected to one end of a connecting rod 310, and the other end of the connecting rod 310 is rotatably connected to the rear end of the second outer connecting block 311. The residual acting force is transmitted to the connected second external connecting block 311, the connecting rod 310 and the first external connecting block 309 through the moving block 205, the fixed block 305 is enabled to move inwards, the rod body of the second telescopic rod 306 is further extruded, the rod body of the second telescopic rod 306 is accommodated in the cylinder body of the second telescopic rod 306, meanwhile, the second spring 307 outside the second telescopic rod 306 is also extruded, the contraction phenomenon is generated, and therefore the residual acting force transmitted for the second time is buffered and absorbed.

The impact removing mechanism 4 includes a single port box 401, a placement groove 402 is provided inside the front end of the single port box 401, a rubber plate 403 is provided at the rear end inside the placement groove 402, and an ACF damper plate 404 is provided at the front end of the rubber plate 403. The ACF damping plate 404 is made of ACF extreme damping material, is a high polymer high-performance material integrating buffering, damping and energy absorption, and is outstanding in the fields of military industry protection, precision instrument transportation protection, valuable article transportation protection, medical assistance and the like.

The outside of first buffer board 201 is provided with the outer cover 214 of buffering, and the equal fixedly connected with connecting block 215 in the middle part of the side about outer cover 214 of buffering, the equal sliding connection in middle part of connecting block 215 has sliding column 8. The acting force is further buffered and absorbed through the buffer outer layer sleeve 214.

The equal fixedly connected with trapezoidal piece 5 in the side about second buffer board 301, the equal fixedly connected with sleeve 6 in the outside of trapezoidal piece 5, the front end inboard of sleeve 6 all is provided with circular slot 7, equal sliding connection has spacing circular piece 9 in the circular slot 7, the front end middle part fixedly connected with slip post 8 of spacing circular piece 9, the front end difference fixed connection of slip post 8 is on the left and right sides of the rear end of bumper 1. Through the limiting function of the sleeve 6, the circular groove 7 and the limiting circular block 9, the first buffer mechanism 2 and the second buffer mechanism 3 can move more stably and firmly.

The equal fixedly connected with connecting plate 405 of downside on the rear end of single-ported case 401, the top bottom of connecting plate 405 all is provided with a plurality of connecting hole 406. Can fix bumper 1 in new energy automobile's front portion position through connecting plate 405, when the guarantee takes place accident and collides, reduce the injury that personnel received on the new energy automobile.

The front end of the bumper 1 is equidistantly provided with a plurality of protective steel pipes 10, and the protective steel pipes 10 are formed by injection molding of toughened polypropylene materials. A portion of the impact and impact forces can be counteracted by the shield steel pipe 10.

The left and right sides of the middle part of the rear end of the bumper 1 are respectively and fixedly connected with the front end of the hydraulic buffer 213, and the positions of the middle part of the rear end of the bumper 1 close to the left and right sides are respectively and fixedly connected with the concave blocks 212. The force is relieved and transmitted through the hydraulic buffer 213.

The cylinder body bottom end of the left first telescopic rod 206 is connected to the left inner wall of the left first inner groove 202, and the cylinder body bottom end of the right first telescopic rod 206 is connected to the right inner wall of the right first inner groove 202. The first telescopic rod 206 can be fixed more stably and firmly by the action of the first inner groove 202.

The cylinder body bottom end of the left second expansion link 306 is connected to the left inner wall of the left second inner groove 302, and the cylinder body bottom end of the right second expansion link 306 is connected to the right inner wall of the right second inner groove 302. The second telescopic rod 306 is fixed more stably and firmly by the action of the second inner groove 302.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. New energy automobile energy-absorbing bumper, including bumper (1), its characterized in that: a first buffer mechanism (2) is arranged at the rear end of the bumper (1), a second buffer mechanism (3) is arranged at the rear end of the first buffer mechanism (2), and an impact eliminating mechanism (4) is arranged at the rear end of the second buffer mechanism (3);

the first buffer mechanism (2) comprises a first buffer plate (201), a left portion and a right portion of the front end of the first buffer plate (201) are provided with first inner grooves (202), top ends and bottom ends of the first inner grooves (202) are provided with first sliding grooves (203), first sliding blocks (204) are connected in the first sliding grooves (203) in a sliding mode, one ends, close to the inner sides, of the first sliding blocks (204) are fixedly connected to the upper end and the lower end of a moving block (205) respectively, the inner sides of the moving block (205) are fixedly connected to the top end of a rod body of a first telescopic rod (206) respectively, first springs (207) are fixedly connected to the outer side of the first telescopic rod (206) respectively, triangular connecting pieces (208) are fixedly connected to the front end of the moving block (205) respectively, the middle portions of the triangular connecting pieces (208) are rotatably connected with one ends of first connecting columns (209), the other ends of the first connecting columns (209) are rotatably connected to the rear end of a connecting bolt (210), the front end of the connecting bolt (210) is rotatably connected with one end of a second connecting column (211), the other ends of the second connecting columns (209) are rotatably connected to the left end of the first buffer plate (201) respectively, and a left side and a right side of the buffer plate (213) is fixedly connected with a concave block (211).

2. The new energy automobile energy absorption bumper according to claim 1, characterized in that: the second buffer mechanism (3) comprises a second buffer plate (301), a second inner groove (302) is formed in the left and right portions of the front end of the second buffer plate (301), a second sliding groove (303) is formed in the top and bottom ends of the second inner groove (302), a second sliding block (304) is connected in the second sliding groove (303) in a sliding mode, one end, close to the inner side, of the second sliding block (304) is fixedly connected to the upper end and the lower end of the fixed block (305) respectively, the inner side of the fixed block (305) is fixedly connected to the top end of a rod body of a second telescopic rod (306), a second spring (307) is fixedly connected to the outer side of the second telescopic rod (306) in a sliding mode, a fixed rod (308) is fixedly connected to the upper portion and the lower portion of the inner side of the second inner groove (302) in a sliding mode, the outer side of the fixed rod (308) is connected with the upper portion and the lower portion of the left and right sides of the fixed block (306) in a sliding mode respectively, a first outer connecting block (309) is fixedly connected to the front end of the fixed block (305) in a rotating mode, and the other end of the second outer connecting rod (311) is connected to the rear end of the second outer connecting rod (310).

3. The new energy automobile energy absorption bumper according to claim 1, characterized in that: the impact eliminating mechanism (4) comprises a single-opening box (401), a placing groove (402) is formed in the inner side of the front end of the single-opening box (401), a rubber plate (403) is arranged at the rear end of the inner side of the placing groove (402), and an ACF (anisotropic conductive film) damping plate (404) is arranged at the front end of the rubber plate (403).

4. The new energy automobile energy absorption bumper according to claim 1, characterized in that: the outer side of the first buffer plate (201) is provided with a buffer outer layer sleeve (214), the middle of the left side and the right side of the buffer outer layer sleeve (214) is fixedly connected with a connecting block (215), and the middle of the connecting block (215) is slidably connected with a sliding column (8).

5. The new energy automobile energy-absorbing bumper as claimed in claim 2, wherein: the bumper comprises a second buffer plate (301), a trapezoidal block (5) and a circular groove (7), wherein the trapezoidal block (5) is fixedly connected to the left side and the right side of the second buffer plate, a sleeve (6) is fixedly connected to the outer side of the trapezoidal block (5), the inner side of the front end of the sleeve (6) is provided with the circular groove (7), a limiting circular block (9) is slidably connected to the inner side of the circular groove (7), a sliding column (8) is fixedly connected to the middle of the front end of the limiting circular block (9), and the front end of the sliding column (8) is fixedly connected to the left side and the right side of the rear end of the bumper (1) respectively.

6. The new energy automobile energy absorption bumper according to claim 3, characterized in that: the equal fixedly connected with connecting plate (405) of downside on the rear end of single-port case (401), the top bottom of connecting plate (405) all is provided with a plurality of connecting hole (406).

7. The new energy automobile energy-absorbing bumper as claimed in claim 1, wherein: the front end equidistance of bumper (1) is provided with a plurality of protection steel pipe (10), protection steel pipe (10) adopt toughened polypropylene material injection moulding.

8. The new energy automobile energy absorption bumper according to claim 1, characterized in that: the left side and the right side of the middle part of the rear end of the bumper (1) are respectively and fixedly connected with the front end of a hydraulic buffer (213), and the middle part of the rear end of the bumper (1) close to the left side and the right side is respectively and fixedly connected with a concave block (212).

9. The new energy automobile energy absorption bumper according to claim 1, characterized in that: the bottom end of the cylinder body of the first telescopic rod (206) at the left side is connected to the left inner wall of the first inner groove (202) at the left side, and the bottom end of the cylinder body of the first telescopic rod (206) at the right side is connected to the right inner wall of the first inner groove (202) at the right side.

10. The new energy automobile energy absorption bumper according to claim 2, characterized in that: the bottom end of the cylinder body of the second telescopic rod (306) on the left side is connected to the inner wall of the second inner groove (302) on the left side, and the bottom end of the cylinder body of the second telescopic rod (306) on the right side is connected to the inner wall of the second inner groove (302) on the right side.