CN102923050B - Protecting and energy-absorbing structure of rear fog lamp of automobile - Google Patents
Protecting and energy-absorbing structure of rear fog lamp of automobile Download PDFInfo
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- CN102923050B CN102923050B CN201210471772.4A CN201210471772A CN102923050B CN 102923050 B CN102923050 B CN 102923050B CN 201210471772 A CN201210471772 A CN 201210471772A CN 102923050 B CN102923050 B CN 102923050B
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Abstract
The invention discloses a protecting and energy-absorbing structure of a rear fog lamp of an automobile. The protecting and energy-absorbing structure comprises a rear longitudinal beam, wherein the back end surface of the longitudinal beam is fixedly connected with the front side of a rear wall; the back side of the rear wall opposite to the rear longitudinal beam is connected with an energy absorbing box; an encircled energy absorbing block is buckled on the energy absorbing box; the encircled energy absorbing block is fixedly connected with the back side of the rear wall; the back side of the encircled energy absorbing block is provided with a protecting cavity; the rear fog lamp is arranged in the protecting cavity; and the rear fog lamp is fixed on a rear bumper. As the rear fog lamp is placed in the protecting cavity of the encircled energy absorbing block, collision energy is preferentially absorbed by the encircled energy absorbing block and the energy absorbing box is placed between the encircled energy absorbing block and a metal plate of the rear wall, the rear fog lamp is preferably protected during low speed collision through step-by-step energy absorption, so that the extent of damage is effectively reduced; and the rear fog lamp can be also placed in a collision area so as to provide greater placing space for the appearance design of the rear fog lamp; and the protecting and energy-absorbing structure of the rear fog lamp of the automobile, disclosed by the invention, have the advantages that manufacturability is good, mold cost is reduced, the production cost is low and lightweight is achieved.
Description
Technical field
The present invention relates to auto parts and components, refer to a kind of Auto Rear Fog Lamp protection endergonic structure particularly.
Background technology
Along with the development of automobile and the progress of technology, vehicle configuration style is more and more tending towards variation and stream line pattern, and rear bumper and fog tail lamp are the emphasis that rear portion moulding is paid close attention to, and fog tail lamp often a lot of vehicle at the apt word added to clinch the point of rear portion moulding.
Owing to expecting that vehicle service expenditure after low speed collision is as far as possible low by the more and more stricter restriction of automotive regulation and car purchaser, the layout of fog tail lamp and moulding receive larger constraint; For fog tail lamp during collision free is impaired or reduce the extent of damage, fog tail lamp is often had to be arranged in outside collision area, or darker sunk structure is set on rear bumper, be then arranged on inside sunk structure by fog tail lamp, this just constrains the space design of fog tail lamp.And client is when buying vehicle, the outward appearance of vehicle is purchased car to it and is had a great impact, especially more obvious in this phenomenon of China.So, how for fog tail lamp provides larger design space just to become problem demanding prompt solution in the layout of Background Region.
Summary of the invention
The object of this invention is to provide a kind of Auto Rear Fog Lamp protection endergonic structure, this endergonic structure can protect fog tail lamp better when low speed collision, and can provide larger arrangement space for the styling design of fog tail lamp.
For achieving the above object; the technical solution used in the present invention is: a kind of Auto Rear Fog Lamp protection endergonic structure; comprise floor side member; the aft end face of described floor side member is fixedly connected with on front side of back wall; energy-absorption box is connected with on rear side of the back wall relative with described floor side member; described energy-absorption box is buckled with circulating type energy absorbent block; described circulating type energy absorbent block is fixedly connected with on rear side of described back wall; the rear side of described circulating type energy absorbent block is provided with protection chamber; be provided with fog tail lamp in described protection chamber, described fog tail lamp is fixed on rear bumper.
The present invention is by being arranged in the cavity between circulating type energy absorbent block and rear bumper by fog tail lamp, by circulating type energy absorbent block preferential absorption collision energy, simultaneously in circulating type energy absorbent block and arrange step panel beating energy-absorption box between back wall panel beating and floor side member, by absorbing energy step by step, good protection being carried out when low speed collision to fog tail lamp, effectively reducing service expenditure; The endergonic structure step by step that the present invention is formed can absorb collision energy well, makes fog tail lamp to be arranged in collision area, thus provides larger arrangement space for the styling design of fog tail lamp; In addition, present invention process is good, reduces die cost, and productive costs is low, achieves lightweight.
Further, on front side of described circulating type energy absorbent block, bottom is provided with energy-absorbing chamber, and be provided with protection chamber in the middle part of rear side, the top in described energy-absorbing chamber has fixed orifice, and described fixed orifice is fixedly connected with back wall.Circulating type energy absorbent block is used for absorbing and transmitting collision energy, fog tail lamp is effectively cushioned in low speed collision, reaches the object of protection fog tail lamp; Gap between protection chamber and rear bumper defines the buffer protection region of a fog tail lamp.
Again further, described energy-absorbing chamber is buckled on energy-absorption box, leaves gap between the inwall in described energy-absorption box and energy-absorbing chamber.Energy-absorption box stretches into the floor side member place that inside, energy-absorbing chamber is conducive to being absorbed fully from circulating type energy absorbent block by energy and being passed to front; The gap reserved between the inwall in energy-absorption box and energy-absorbing chamber is that circulating type energy absorbent block provides certain cushion space, is conducive to the transmission step by step of collision energy.
Further, in described protection chamber, be provided with fog tail lamp, between the inwall in fog tail lamp and protection chamber, leave gap.Not contact with insurance chamber in the insurance chamber that fog tail lamp is in circulating type energy absorbent block, when a collision occurs, rammer first with the exterior surface of rear bumper, then rear bumper distortion is compressed, fog tail lamp is along with rear bumper without hindrance motion one segment distance, then contact and compress the bottom protecting chamber, because of fog tail lamp and protection chamber inwall between leave gap, circulating type energy absorbent block is not substantially compressed to the part between back wall panel beating in the starting stage bottom protection chamber, so its intensity is far below fog tail lamp, the compression energy of fog tail lamp can well be cushioned, fog tail lamp is played a protective role.
Preferably, described energy-absorption box is multi-stage stairs shape, and cross-sectional area increases from back to front successively.During collision, first energy is delivered to the top of energy-absorption box, and the step profile section due to energy-absorption box is long-pending to be increased from back to front gradually, so encounter stage more rearward, the energy that unit deformation amount absorbs is larger, and this is conducive to the buffering to collision.
Further preferably, described back wall trailing flank is provided with stud, and described stud inserts the fixed orifice internal fixtion of circulating type energy absorbent block.Circulating type energy absorbent block is fixed on back wall by stud.
Again further preferably, described bumper/spoiler has installing port, and the two ends on front side of described installing port are respectively equipped with screw base and deck, and the two ends of described fog tail lamp are respectively equipped with attachment face and claw, described screw base is fixedly connected with attachment face, described deck and claw clamping.Fog tail lamp is fixed by one end screw, and the mode of other end clamping is fixed on rear bumper.
Still more preferably, described circulating type energy absorbent block adopts expanded material.Utilize the feature that expanded material is easy to shaping, easily realize the structure of more complicated, compare the rear impact beam structure such as panel beating and aluminum alloy manufacturability well a lot; And the mould of the die cost relative injection part of expanded material and sheet metal part is cheap, and can a multi-cavity mold, produce multiple part simultaneously, be conducive to enhancing productivity, reduce costs; In addition, because expanded material density is very low, compare the back buffer beam adopting the material such as panel beating or aluminum alloy, weight wants light a lot, can realize the lightweight of vehicle, and is conducive to reducing fuel oil consumption.
Accompanying drawing explanation
Fig. 1 is the installation site schematic diagram of fog tail lamp on vehicle body.
Fig. 2 is the structural representation of fog tail lamp and fog tail lamp protection endergonic structure.
Fig. 3 is the decomposition texture schematic diagram of floor side member, back wall panel beating and energy-absorption box in Fig. 2.
Fig. 4 is the assembling schematic diagram of circulating type energy absorbent block in Fig. 2.
Fig. 5 is that in Fig. 2, energy-absorption box is fixed on the back view on back wall panel beating.
Fig. 6 is the rear structure schematic diagram of circulating type energy absorbent block.
Fig. 7 is the mounting structure schematic diagram of fog tail lamp on rear bumper in Fig. 2.
Fig. 8 is A-A cross-sectional view in Fig. 2.
Fig. 9 is B-B cross-sectional view in Fig. 2.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, is convenient to more clearly understand the present invention, but they do not form restriction to the present invention.
The present invention is symmetrically arranged in the left and right sides of vehicle rear, as shown in Figure 1, now be specifically described for the fog tail lamp in left side protection endergonic structure, wherein, the fore-and-aft direction of vehicle is referred in the following description, and in order to the convenience described, the direction of each parts refers to its direction on vehicle during installing condition.
As Fig. 2, shown in Fig. 3, a kind of Auto Rear Fog Lamp protection endergonic structure, comprise floor side member 1, floor side member 1 there are two welded nuts 8, three planes on floor side member 1 aft end face and back wall 2 panel beating front plan are fitted weld together, welded nut 8 place on the corresponding floor side member 1 of back wall 2 panel beating offers two through holes, panel beating energy-absorption box 3 is connected with on rear side of the back wall 2 relative with described floor side member 1, this energy-absorption box 3 has the step that level Four cross-sectional area increases gradually from back to front, the end of minimum one-level step is the top seal end of energy-absorption box 3, during collision, first energy is delivered to energy-absorption box 3 top, step profile section due to energy-absorption box 3 is long-pending to be increased from back to front gradually, so encounter stage more rearward, the energy that unit deformation amount absorbs is larger, this is conducive to the buffering to collision, the bottom of energy-absorption box 3 has two through holes, the welded nut 8 on floor side member 1 is screwed into after two through holes on screw bolt passes energy-absorption box 3 and back wall 2, thus the bottom of energy-absorption box 3 is fixed on back wall 2 and floor side member 1.
As Fig. 4, shown in Fig. 5, described back wall 2 trailing flank is provided with two welding screws 7 for fixing circulating type energy absorbent block 4, described circulating type energy absorbent block 4 is made up of expanded material, on front side of this circulating type energy absorbent block 4, bottom is provided with the energy-absorbing chamber 403 of closing with energy-absorption box 3 matching form, rear side middle part is provided with the protection chamber 401(that closes with fog tail lamp 5 matching form as Fig. 6), the top in described energy-absorbing chamber 403 has two circular fixed orifices 404, fixing on circulating type energy absorbent block 4 is inserted in back wall 2 panel beating two welding screws 7 from X to the hole 404 that is fixed along, described energy-absorbing chamber 403 is made to be buckled on energy-absorption box 3, energy-absorption box 3 is just contained in 403 li, the energy-absorbing chamber, bottom of circulating type energy absorbent block 4, gap is left between the inwall in described energy-absorption box 3 and energy-absorbing chamber 403, the strip shape fog tail lamp 5 of arc is provided with in described protection chamber 401, fog tail lamp 5 does not directly contact with the inwall in protection chamber 401, leave dash clearance therebetween, fog tail lamp 5 is fixed on rear bumper 6, and the shape in the protection chamber 401 of circulating type energy absorbent block 4 can carry out respective design according to the deployment scenarios of fog tail lamp 5.
As shown in Figure 7, described bumper/spoiler 6 has installing port 9, right-hand member on front side of described installing port 9 is provided with the screw base 10 of band spring nut near midway location, left end is provided with deck 11, the right-hand member of described fog tail lamp 5 is provided with attachment face 12, left end is provided with claw 13, and described screw base 10 is fixedly connected with attachment face 12, described deck 11 and claw 13 clamping.After mounting before fog lamp 5, first spring nut is stuck on the screw base 10 of rear bumper 6, during assembling fog tail lamp 5, first the claw 13 of fog tail lamp 5 is snapped in the deck 11 li of rear bumper 6, then the attachment face 12 of the right-hand member band mounting hole of fog tail lamp 5 is connected to screw on the screw base 10 of rear bumper 6 upper ribbon spring sheet nut, like this, fog tail lamp 5 has just been fixed on rear bumper 6, and rear bumper 6 is connected on vehicle body main body frame by fastener and interface arrangment.
Installation process of the present invention is as follows: first, is assembled to by fog tail lamp 5 on rear bumper 6; Then; by energy-absorption box 3 with two be bolted to there is back wall 2 panel beating and floor side member 1 body in white on; then circulating type energy absorbent block 4 is inserted on the welding screw 7 of back wall 2 panel beating; finally the rear bumper 6 assembling fog tail lamp 5 is installed on vehicle body, between the protection chamber 401 and rear bumper 6 of circulating type energy absorbent block 4, constitute the protection zone of a fog tail lamp 5.
Principle of the present invention is described as follows: fog tail lamp 5 is arranged in the protection chamber, middle part 401 of circulating type energy absorbent block 4 by the present invention; and arrange energy-absorption box 3 at circulating type energy absorbent block 4 rear portion; energy-absorption box 3 is connected with back wall 2 panel beating and floor side member 1; like this, between rear bumper 6 and floor side member 1, just define the endergonic structure step by step of a circulating type.Wherein, rear bumper 6 is arranged on vehicle body main body frame, becomes the first order endergonic structure of circulating type endergonic structure step by step, effectively absorbs initial collision energy, and makes fog tail lamp 5 together move with rear bumper 6 and do not collided; Circulating type energy absorbent block 4 is second stage endergonic structure, and fog tail lamp 5 is contained in protection chamber 401 by its circulating type structure, can preferential absorption collision energy and fog tail lamp 5 is not collided; Energy-absorption box 3 is bolted on back wall 2 panel beating, becomes third stage endergonic structure, its step-like endergonic structure along with the energy absorbing of increase unit deformation of distortion also larger; Back wall 2 panel beating and floor side member 1 are afterbody endergonic structure, comparatively macro-energy during its higher collision velocity of absorption.
When a collision occurs, rammer first with the exterior surface of rear bumper 6, then compress rear bumper 6 to be out of shape, first collision energy is absorbed by rear bumper 6, because fog tail lamp 5 is positioned at the protection chamber 401 that rear bumper 6 forms with circulating type energy absorbent block 4, during collision, fog tail lamp 5 is along with rear bumper 6 without hindrance motion one segment distance, so fog tail lamp 5 does not come in contact with other parts substantially; Rear bumper 6 is after under the effect of rammer, deflection exceedes the gap between rear bumper 6 and circulating type energy absorbent block 4, and rear bumper 6 contacts with circulating type energy absorbent block 4, and circulating type energy absorbent block 4 now starts to absorb main collision energy.As shown in Figure 8, Figure 9; energy-absorbing is out of shape after the outside face of circulating type energy absorbent block 4 contacts with the inside face of rear bumper 6; simultaneously; fog tail lamp 5 is along with rear bumper 6 402 motions bottom the protection chamber of circulating type energy absorbent block 4 together; along with the increase of collision energy; circulating type energy absorbent block 4 is more by compression, and the application force of collision is delivered to the energy-absorption box 3 at rear portion by circulating type energy absorbent block 4, then is delivered on floor side member 1 through back wall 2 panel beating.Fog tail lamp 5 moves along with rear bumper 6; to contact and bottom the protection chamber compressing circulating type energy absorbent block 4 402; because the part bottom the protection chamber of circulating type energy absorbent block 4 between 402 to back wall 2 panel beating was not compressed substantially in the starting stage; so its intensity is far below fog tail lamp 5, the compression energy of fog tail lamp 5 can well be cushioned.After energy-absorption box 3 starts energy-absorbing, because the intensity of energy-absorption box 3 is much larger than circulating type energy absorbent block 4, therefore the phase absorbs collision energy primarily of energy-absorption box 3 after an impact, and the collision energy that circulating type energy absorbent block 4 is subject to is very little, amount of compression also can be very little simultaneously, and fog tail lamp 5 is in contact with it and can be cushioned well.Further, energy-absorption box 3 be impacted compression time, its step-like structure absorbs energy step by step by crumple one by one, and will comparatively macro-energy be delivered on floor side member 1, is born by main structure of vehicle body.Now; the energy that rear bumper 6 and circulating type energy absorbent block 4 absorb only accounts for the very fraction of Impact energy; its deflection is also very little; fog tail lamp 5 moves along with rear bumper 6 and to compress bottom the protection chamber of circulating type energy absorbent block 4 402; because this part amount of compression in collision in early stage is less; so; its intensity is still far below fog tail lamp 5; fog tail lamp 5 still can be subject to good protection; therefore in whole collision process, fog tail lamp 5 all can be subject to good protection and substantially can not damage, and greatly can reduce service expenditure.In view of this, adopt this structure, fog tail lamp 5 can be arranged in rear impact region, and also very little to the space requirement at rear portion, be extremely conducive to the styling design of fog tail lamp 5.
In addition, this structure can obtain the protection zone of expectation according to the layout in protection chamber 401; Further, by carrying out suitable adjustment to endergonic structure is at different levels step by step, the collision characteristic expected can be obtained, thus available protecting fog tail lamp 5; The present invention equally also goes for the Reverse Sensor, Reflex Reflector, rear registration plate lamp etc. that moulding is arranged in rear bumper 6 region.
Claims (6)
1. an Auto Rear Fog Lamp protection endergonic structure, comprise floor side member (1), the aft end face of described floor side member (1) is fixedly connected with back wall (2) front side, it is characterized in that: back wall (2) rear side relative with described floor side member (1) is connected with energy-absorption box (3), described energy-absorption box (3) is buckled with circulating type energy absorbent block (4), described circulating type energy absorbent block (4) is fixedly connected with described back wall (2) rear side, the rear side of described circulating type energy absorbent block (4) is provided with protection chamber (401), fog tail lamp (5) is provided with in described protection chamber (401), described fog tail lamp (5) is fixed on rear bumper (6), bottom, described circulating type energy absorbent block (4) front side is provided with energy-absorbing chamber (403), rear side middle part is provided with described protection chamber (401), the top of described energy-absorbing chamber (403) has fixed orifice (404), and described fixed orifice (404) is fixedly connected with back wall (2), described energy-absorbing chamber (403) is buckled on energy-absorption box (3), leaves gap between the inwall of described energy-absorption box (3) and energy-absorbing chamber (403).
2. Auto Rear Fog Lamp protection endergonic structure according to claim 1; it is characterized in that: in described protection chamber (401), be provided with fog tail lamp (5), between the inwall of fog tail lamp (5) and protection chamber (401), leave gap.
3. Auto Rear Fog Lamp protection endergonic structure according to claim 1, is characterized in that: described energy-absorption box (3) is in multi-stage stairs shape, and cross-sectional area increases from back to front successively.
4. Auto Rear Fog Lamp protection endergonic structure according to claim 1, it is characterized in that: described back wall (2) trailing flank is provided with stud (7), described stud (7) inserts fixed orifice (404) internal fixtion of circulating type energy absorbent block (4).
5. Auto Rear Fog Lamp protection endergonic structure according to claim 1, it is characterized in that: described bumper/spoiler (6) has installing port (9), the two ends of described installing port (9) front side are respectively equipped with screw base (10) and deck (11), the two ends of described fog tail lamp (5) are respectively equipped with attachment face (12) and claw (13), described screw base (10) is fixedly connected with attachment face (12), described deck (11) and claw (13) clamping.
6. Auto Rear Fog Lamp protection endergonic structure according to claim 1, is characterized in that: described circulating type energy absorbent block (4) adopts expanded material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210471772.4A CN102923050B (en) | 2012-11-20 | 2012-11-20 | Protecting and energy-absorbing structure of rear fog lamp of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210471772.4A CN102923050B (en) | 2012-11-20 | 2012-11-20 | Protecting and energy-absorbing structure of rear fog lamp of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102923050A CN102923050A (en) | 2013-02-13 |
| CN102923050B true CN102923050B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210471772.4A Active CN102923050B (en) | 2012-11-20 | 2012-11-20 | Protecting and energy-absorbing structure of rear fog lamp of automobile |
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| Country | Link |
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| CN (1) | CN102923050B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827996A (en) * | 2014-10-22 | 2015-08-12 | 北汽福田汽车股份有限公司 | Rear bumper energy-absorbing device of vehicle and vehicle |
| JP6962853B2 (en) * | 2018-04-09 | 2021-11-05 | 本田技研工業株式会社 | Vehicle rear bumper |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213644A (en) * | 1978-08-17 | 1980-07-22 | Mccord Corporation | Energy-absorbing bumper assembly |
| US4270787A (en) * | 1980-03-03 | 1981-06-02 | Ford Motor Company | Displaceable lamp |
| US4466646A (en) * | 1983-02-25 | 1984-08-21 | General Motors Corporation | Energy absorbing bumper assembly for vehicles |
| CN201833944U (en) * | 2010-10-15 | 2011-05-18 | 中国重汽集团济南动力有限公司 | Anti-collision automobile taillight structure |
| CN202098368U (en) * | 2011-04-28 | 2012-01-04 | 重庆长安汽车股份有限公司 | Automotive rear anti-collision crossbeam assembly |
| CN203005325U (en) * | 2012-11-20 | 2013-06-19 | 东风汽车公司 | Automobile rear fog lamp protection and energy-absorption structure |
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2012
- 2012-11-20 CN CN201210471772.4A patent/CN102923050B/en active Active
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| CN102923050A (en) | 2013-02-13 |
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