CN204821434U - Car energy -absorbing box - Google Patents
Car energy -absorbing box Download PDFInfo
- Publication number
- CN204821434U CN204821434U CN201520165743.4U CN201520165743U CN204821434U CN 204821434 U CN204821434 U CN 204821434U CN 201520165743 U CN201520165743 U CN 201520165743U CN 204821434 U CN204821434 U CN 204821434U
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- Prior art keywords
- energy
- absorption box
- box
- box body
- absorption
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 92
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 239000006260 foam Substances 0.000 claims abstract description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 14
- 239000004917 carbon fiber Substances 0.000 claims description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 239000002184 metal Substances 0.000 abstract description 8
- 230000035939 shock Effects 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 4
- 229910052799 carbon Inorganic materials 0.000 abstract 4
- 239000000835 fiber Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000020442 loss of weight Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Vibration Dampers (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The utility model discloses a car energy -absorbing box, including energy -absorbing box box body, energy -absorbing box box body adopts carbon -fibre composite to make, and the end edge of energy -absorbing box box body has the chamfer, in the energy -absorbing box box body inner chamber and fill and have the foam. The utility model discloses a car energy -absorbing box because energy -absorbing box box body adopts carbon -fibre composite, has realized the lightweight effect, and carbon -fibre composite energy -absorbing box subtracts heavyly by 50%-65% than common metal energy -absorbing box, fill the foam carbon -fibre composite energy -absorbing box be 1.7-3 times of common metal energy -absorbing box than the energy absorption, synthesize shock resistance and energy -absorbing effect height to can improve collision energy -absorbing effect, and have the lightweight effect.
Description
Technical field
The utility model belongs to automotive crash safety technical field, and specifically, the utility model relates to a kind of vehicle energy absorption box.
Background technology
For avoiding front side member to be out of shape during automobile generation front slight degree of crash, usually between automobile front protecting crossbeam and front side member, energy-absorption box is installed, when collision impact energy exceedes the energy absorption ability of front bumper, energy-absorption box starts to occur conquassation distortion with absorption portion impact energy, thus avoids impact energy and directly act on front side member and cause it to be out of shape.Traditional energy-absorption box structure is primarily of the tubular sheet metal component composition with easy collapse-fold characteristic, and energy-absorbing function is single, and effect is poor.The energy-absorption box structure generally used at present has predeformation design on its box body, to improve its energy-absorbing deformation characteristic, but the energy-absorption box adopting sheet metal part to make due to weight high, lower than energy absorption.
Utility model content
The utility model provides a kind of vehicle energy absorption box, and object improves collision energy-absorbing effect, and have light weight effect.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of vehicle energy absorption box, comprises energy-absorption box box body, and described energy-absorption box box body adopts carbon fiber composite material to make, and the end edge of energy-absorption box box body has chamfering, be filled with foam in energy-absorption box box body inner chamber.
Described energy-absorption box box body is made up of carbon fiber woven cloth and thermoplastic base resin.
Described chamfering is located at the open end wallboard edge of described energy-absorption box box body.
Described chamfer angle is 30 °.
The cross section of described energy-absorption box box body is polygon, energy-absorption box box body is formed many crest lines.
One end of described energy-absorption box box body is provided with the butt flange for being connected with automobile front longitudinal beam, and the other end is open end, and open end is provided with the attachment lug for being connected with front guarantor's crossbeam.
Described attachment lug is extended along the length direction of described energy-absorption box box body.
Described attachment lug is provided with two altogether, and two attachment lugs are for being oppositely arranged.
The wall thickness of described energy-absorption box box body and described butt flange is 2.8 ~ 4.2mm.
The foam of filling in described energy-absorption box box body inner chamber is PU foam, and the density of PU foam is 47mg/cm
3.
Vehicle energy absorption box of the present utility model, because energy-absorption box box body adopts carbon fiber composite material, achieve light weight effect, carbon fiber composite material energy-absorption box is plain metal energy-absorption box loss of weight 50% ~ 65% comparatively, the ratio energy absorption of the carbon fiber composite material energy-absorption box of filled and process is 1.7 ~ 3 times of plain metal energy-absorption box, comprehensive impact resistance and energy-absorbing function high, thus collision energy-absorbing effect can be improved, and there is light weight effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model vehicle energy absorption box;
Fig. 2 is the cutaway view of the utility model vehicle energy absorption box;
Fig. 3 is A place enlarged drawing in Fig. 2;
Fig. 4 is vehicle energy absorption box and front guarantor's crossbeam connection diagram;
Mark in above-mentioned figure is: 1, butt flange; 2, Flange joint screw; 3, energy-absorption box box body; 31, inclined-plane; 4, attachment lug; 5, auricle connecting screw hole; 6, foam; 7, front guarantor's crossbeam.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, be described in further detail detailed description of the invention of the present utility model, object helps those skilled in the art to have more complete, accurate and deep understanding to design of the present utility model, technical scheme, and contribute to its enforcement.
As shown in Figures 1 to 4, the utility model provides a kind of vehicle energy absorption box, comprises energy-absorption box box body 3, butt flange 1 and attachment lug 4.The energy-absorption box box body 3 of this vehicle energy absorption box adopts carbon fiber composite material to make, and the end edge of energy-absorption box box body 3 has chamfering, is filled with foam 6 in the inner chamber of energy-absorption box box body 3.
Specifically, as shown in Figure 1, energy-absorption box box body 3 is the tubular structure of both ends open, inner hollow, and the cross section of energy-absorption box box body 3 is polygon, thus energy-absorption box box body 3 forms many crest lines, the crest line on energy-absorption box box body 3 can play predeformation design function.
As preferably, energy-absorption box box body 3 is made up of carbon fiber woven cloth and thermoplastic base resin, achieves light weight effect.
As shown in Figure 1, butt flange 1 for being connected with automobile front longitudinal beam is connected with the end winding support of energy-absorption box box body 3, this end of energy-absorption box box body 3 is also closed by butt flange 1, butt flange 1 is also provided with Flange joint screw 2, is connected so that itself and front side member carry out bolt.The other end of energy-absorption box box body 3 is open end, and namely the attachment lug 4 for being connected with front guarantor's crossbeam 7 is located at the open end of energy-absorption box box body 3, and attachment lug 4 has two through holes, so that carry out glue/spiral shell Hybrid connections with front guarantor's crossbeam 7.
As shown in Figure 1 to Figure 3, as preferably, chamfering is the open end wallboard edge being located at energy-absorption box box body 3, this place's chamfering be bevelling, and the open end end face of the energy-absorption box box body 3 of formation is towards the inclined-plane 31 of energy-absorption box box body 3 inner inclination extension.The angle of this chamfering is 30 °, when automobile generation head-on crash, front guarantor's crossbeam 7 will remain most of energy transferring to energy-absorption box after a small amount of energy of absorption, preferentially there is cracking or cracked in the edge that tubular carbon fiber composite material box body has 30 ° of chamferings, and then induce whole energy-absorption box box body 3 that cracking or cracked to realize energy absorbing occurs, therefore there is higher collision energy-absorbing effect.
As shown in Figure 1, attachment lug 4 is that length direction along energy-absorption box box body 3 from the end face of energy-absorption box box body 3 is extended.As preferably, attachment lug 4 is provided with two altogether, and two attachment lugs 4 are for being oppositely arranged.Attachment lug 4 and the contact surface coated structure glue of front guarantor's crossbeam 7, realize glue/spiral shell Hybrid connections by auricle connecting screw hole 5.
As preferably, energy-absorption box box body 3 and butt flange 1 and attachment lug 4 be adopt carbon fiber woven cloth and thermosetting resin by resin transfer molding process or autoclave forming process one-body molded.
As preferably, the wall thickness of energy-absorption box box body 3 and butt flange 1 and attachment lug 4 is 2.8 ~ 4.2mm.
As preferably, the foam 6 of filling in the inner chamber of energy-absorption box box body 3 is PU foam, and the density of PU foam is 47mg/cm3, and shock resistance energy absorption characteristics is good.
The vehicle energy absorption box of said structure has the following advantages:
1) this carbon fiber composite material energy-absorption box is about 4.9kJ/kg than energy absorption, is 1.7 ~ 3.0 times of plain metal energy-absorption box.
2) because energy-absorption box box body adopts carbon fiber composite material, achieve light weight effect, carbon fiber composite material energy-absorption box is plain metal energy-absorption box loss of weight 50% ~ 65% comparatively.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; or design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (10)
1. a vehicle energy absorption box, comprises energy-absorption box box body, it is characterized in that: described energy-absorption box box body adopts carbon fiber composite material to make, and the end edge of energy-absorption box box body has chamfering, is filled with foam in energy-absorption box box body inner chamber.
2. vehicle energy absorption box according to claim 1, is characterized in that: described energy-absorption box box body is made up of carbon fiber woven cloth and thermoplastic base resin.
3. vehicle energy absorption box according to claim 1, is characterized in that: described chamfering is located at the open end wallboard edge of described energy-absorption box box body.
4. vehicle energy absorption box according to claim 3, is characterized in that: described chamfer angle is 30 °.
5. vehicle energy absorption box according to claim 1, is characterized in that: the cross section of described energy-absorption box box body is polygon, energy-absorption box box body is formed many crest lines.
6. vehicle energy absorption box according to claim 5, is characterized in that: one end of described energy-absorption box box body is provided with the butt flange for being connected with automobile front longitudinal beam, and the other end is open end, and open end is provided with the attachment lug for being connected with front guarantor's crossbeam.
7. vehicle energy absorption box according to claim 6, is characterized in that: described attachment lug is extended along the length direction of described energy-absorption box box body.
8. the vehicle energy absorption box according to claim 6 or 7, is characterized in that: described attachment lug is provided with two altogether, and two attachment lugs are for being oppositely arranged.
9. the vehicle energy absorption box according to claim 6 or 7, is characterized in that: the wall thickness of described energy-absorption box box body and described butt flange is 2.8 ~ 4.2mm.
10. vehicle energy absorption box according to claim 1, is characterized in that: the foam of filling in described energy-absorption box box body inner chamber is PU foam, and the density of PU foam is 47mg/cm
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520165743.4U CN204821434U (en) | 2015-03-23 | 2015-03-23 | Car energy -absorbing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520165743.4U CN204821434U (en) | 2015-03-23 | 2015-03-23 | Car energy -absorbing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204821434U true CN204821434U (en) | 2015-12-02 |
Family
ID=54679064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520165743.4U Active CN204821434U (en) | 2015-03-23 | 2015-03-23 | Car energy -absorbing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204821434U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835952A (en) * | 2016-04-29 | 2016-08-10 | 奇瑞汽车股份有限公司 | Automobile anti-collision crossbeam assembly and making method thereof |
| CN107672548A (en) * | 2017-10-27 | 2018-02-09 | 河北工业大学 | A kind of bumper and automobile |
| CN108909661A (en) * | 2018-04-21 | 2018-11-30 | 浙江合众新能源汽车有限公司 | Preceding guarantor's transverse beam system |
| CN109455290A (en) * | 2018-10-25 | 2019-03-12 | 中国民航大学 | A kind of cargo deck lower part endergonic structure unit for fitting pendant property for improving aircraft |
| CN112297458A (en) * | 2020-10-13 | 2021-02-02 | 中机精密成形产业技术研究院（安徽）股份有限公司 | Automobile energy absorption box and secondary forming process and forming device thereof |
-
2015
- 2015-03-23 CN CN201520165743.4U patent/CN204821434U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835952A (en) * | 2016-04-29 | 2016-08-10 | 奇瑞汽车股份有限公司 | Automobile anti-collision crossbeam assembly and making method thereof |
| CN107672548A (en) * | 2017-10-27 | 2018-02-09 | 河北工业大学 | A kind of bumper and automobile |
| CN108909661A (en) * | 2018-04-21 | 2018-11-30 | 浙江合众新能源汽车有限公司 | Preceding guarantor's transverse beam system |
| CN109455290A (en) * | 2018-10-25 | 2019-03-12 | 中国民航大学 | A kind of cargo deck lower part endergonic structure unit for fitting pendant property for improving aircraft |
| CN112297458A (en) * | 2020-10-13 | 2021-02-02 | 中机精密成形产业技术研究院（安徽）股份有限公司 | Automobile energy absorption box and secondary forming process and forming device thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |