CN104441839A - Energy absorption structure for corrugated sandwich panel - Google Patents
Energy absorption structure for corrugated sandwich panel Download PDFInfo
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- CN104441839A CN104441839A CN201410782371.XA CN201410782371A CN104441839A CN 104441839 A CN104441839 A CN 104441839A CN 201410782371 A CN201410782371 A CN 201410782371A CN 104441839 A CN104441839 A CN 104441839A
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- Prior art keywords
- energy absorption
- corrugated core
- endergonic structure
- sandwich plate
- corrugated
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- 238000010521 absorption reaction Methods 0.000 title abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229920006231 aramid fiber Polymers 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 8
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 8
- 239000004593 Epoxy Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 2
- 239000011162 core material Substances 0.000 abstract description 28
- 230000003139 buffering effect Effects 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 10
- 230000035939 shock Effects 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000011229 interlayer Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
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- B32B17/064—
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/02—Layered products comprising a layer of synthetic resin in the form of fibres or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Vibration Dampers (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses an energy absorption structure for a corrugated sandwich panel. The energy absorption structure consists of an upper panel, multiple layers of corrugated cores, a sandwich panel and a lower panel, all of which are sequentially stacked and are adhered by an epoxy-structure adhesive or brazed to form an integrated structure; the section of the corrugated core is in a trapezoid, triangle or sine curve shape, and when the layer number of the corrugated cores is larger than or equal to two, the arrangement manner of the corrugated cores is regular arrangement, staggered arrangement or 0-degree or 90-degree arrangement. The energy absorption structure for the corrugated sandwich panel has the characteristics of light weight, strong toughness and good shock resistance; in the whole energy absorption procedure, the impact force is stable; due to the openness of a core material structure, the energy absorption structure can effectively and actively dissipate collision heat during collision, so that the structure material avoids yielding in advance under the influence of high temperature. The energy absorption structure for the corrugated sandwich panel can be applied to an automobile buffering energy absorption device, and also can be applied to any load and field needing the buffering energy absorption structure.
Description
Technical field
The present invention relates to automotive SBC technical field, be specifically related to a kind of can the corrugation sandwich plate endergonic structure of effective buffering energy-absorbing in automobile collision procedure.
Background technology
" safety, environmental protection, energy-conservation " is three large themes of contemporary automotive development, and automotive SBC is the most important thing that vehicle safety designs.Good buffering energy-absorbing structure not only requires distortion impact energy being converted into as much as possible structure, can namely; But also claimed structure unit mass has higher energy absorption, namely large than energy-absorbing, thus improve the utilization rate of structure and material, meet light-weighted designing requirement, reach energy-conservation object.Present stage, the endergonic structure of extensive use is thin-wall metal pipe and aluminium honeycomb.Wherein, tubulose endergonic structure utilizes that axial flexing is progressive to be collapsed distortion and carry out energy-absorbing, but load impacting fluctuation is comparatively large in impact process, and therefore the energy absorption of light-wall pipe is uneven; And aluminium honeycomb is in endergonic process, due to the closure of core material structure, the heat produced in the collision process that can not leave effectively on one's own initiative, causes material surrender ahead of time.
Summary of the invention
The technical problem to be solved in the present invention is the shortcomings and deficiencies overcoming above-mentioned conventional buffer endergonic structure, propose to adopt a kind of novel, lightweight, tough sexuality is strong, impact resistance is good corrugation sandwich plate endergonic structure, thus reduce the weight of endergonic structure, improve than energy-absorbing, and ensure that the shock wave in collision process is steady.
In order to solve the problems of the technologies described above, the present invention by the following technical solutions:
A kind of corrugation sandwich plate endergonic structure, described endergonic structure is made up of top panel, corrugated core, sandwich panel and lower panel, and each several part stacks gradually and forms overall structure by epoxy construction glue glued adhesion or soldering.
Further, described corrugated core cross section is trapezoidal, triangle or sine curve.
Further, described corrugated core is some layers, number of plies one deck fewer than corrugated core of described sandwich panel.
Further, when number of plies n >=2 of corrugated core, the arrangement mode of described corrugated core be regularly arranged, be staggered or 0 °/90 ° arrangements.
Further, described top panel adopts metal alloy, glass fiber compound material, aramid fiber reinforced composite or carbon fibre composite to make.
Further, described corrugated core adopts metal alloy, glass fiber compound material, aramid fiber reinforced composite or carbon fibre composite to make.
Further, described sandwich panel adopts metal alloy, glass fiber compound material, aramid fiber reinforced composite or carbon fibre composite to make.
Further, described lower panel adopts metal alloy, glass fiber compound material, aramid fiber reinforced composite or carbon fibre composite to make.
Compared with the buffering energy-absorbing structure of present stage extensive use, the technical solution adopted in the present invention has following beneficial effect:
1) the corrugation interlayer buffering energy-absorbing structure described in has the features such as lightweight, tough sexuality is strong, shock resistance is good, and in whole endergonic process, impulsive force is steady; And due to the opening of core material structure, this endergonic structure effectively initiatively can be left collision heat in collision process, structural material is avoided owing to surrendering ahead of time by temperatures involved.
2) the sandwich form of the corrugation interlayer buffering energy-absorbing structure described in is simple, attractive in appearance and be easy to preparation, and the required consumptive material of preparation is few.
3) the corrugation interlayer buffering energy-absorbing structure described in is due to the orthotropy characteristic of structure, aviation field morphing aircraft wing (allow change in shape in wrinkling direction and increase surface area, can ensure air pertormance and inertial load in the rigidity of horizontal direction) there is very important application.
4) number of plies of the corrugation interlayer buffering energy-absorbing structure corrugated core described in includes but are not limited to one deck, can place size as required, carry out the number of plies of this buffering energy-absorbing structure corrugated core of choose reasonable, simultaneously the number of plies of corresponding increase sandwich panel, sandwich panel number of plies one deck fewer than corrugated core.
5) the present invention is not limited only to automatic buffer energy absorption device; it can be applicable to any load and the field that need buffering energy-absorbing structure; such as also can be used in the delivery vehicle such as boats and ships, aircraft, to carry out energy-absorbing buffering effectively when crashing, reaching the object of protection driver and crew.
Accompanying drawing explanation
Fig. 1 is two-layer corrugation sandwich plate endergonic structure schematic perspective view of the present invention;
Fig. 2 is the multi-form schematic diagram of corrugation sandwich plate endergonic structure corrugated core of the present invention;
Fig. 3 is the different arrangement mode schematic diagrames of multilayer corrugation sandwich plate endergonic structure of the present invention.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.But be understandable that, following detailed description of the invention is only the preferred technical solution of the present invention, and should not be construed limitation of the present invention.
As shown in Figure 1, a kind of corrugation sandwich plate endergonic structure, described endergonic structure is made up of top panel 1, corrugated core 2, sandwich panel 3 and lower panel 4, each several part stacks gradually and forms overall structure by epoxy construction glue glued adhesion, described corrugated core 2 cross section is trapezoidal, and described top panel 1 and lower panel 4 thickness are 0.5-1mm; Described sandwich panel 2 thickness is 0.2-0.5mm; Described corrugated core 2 thickness is 0.1-0.2mm, and right-angle side length is 0-7mm, hypotenuse length L
1for 3-15mm, corrugated core 2 and top panel 1 angle ω are 30 °-90 °; Described corrugated core 2 is 2 layers, and described sandwich panel 3 is 1 layer, and described corrugated core 2 arrangement mode is for being staggered, and described top panel 1, corrugated core 2, sandwich panel 3 and lower panel 4 adopt metal aluminum alloy material to make.
As shown in Figure 2, described corrugated core 2 cross section is trapezoidal, triangle or sine curve, and described corrugated core 2 cross section structure includes but are not limited to above-mentioned 3 kinds of structures.
As shown in Figure 3, the arrangement mode of multilayer corrugation sandwich plate endergonic structure is regularly arranged or is staggered or 0 °/90 ° arrangements, and the arrangement mode of described endergonic structure includes but are not limited to above-mentioned 3 kinds of modes.
Corrugation interlayer buffering energy-absorbing structure of the present invention has the features such as lightweight, tough sexuality is strong, shock resistance is good, and in whole endergonic process, impulsive force is steady; And due to the opening of core material structure, this endergonic structure effectively initiatively can be left collision heat in collision process, structural material is avoided owing to surrendering ahead of time by temperatures involved.The present invention is not limited only to automatic buffer energy absorption device; it can be applicable to any load and the field that need buffering energy-absorbing structure; such as also can be used in the delivery vehicle such as boats and ships, aircraft, to carry out energy-absorbing buffering effectively when crashing, reaching the object of protection driver and crew.
More than show and describe general principle of the present invention and principal character.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a corrugation sandwich plate endergonic structure, it is characterized in that: described endergonic structure is made up of top panel (1), corrugated core (2), sandwich panel (3) and lower panel (4), and each several part stacks gradually and forms overall structure by epoxy construction glue glued adhesion or soldering.
2. corrugation sandwich plate endergonic structure according to claim 1, is characterized in that: described corrugated core (2) cross section is trapezoidal, triangle or sine curve.
3. corrugation sandwich plate endergonic structure according to claim 2, is characterized in that: described corrugated core (2) is some layers, number of plies one deck fewer than corrugated core of described sandwich panel (3).
4. corrugation sandwich plate endergonic structure according to claim 3, is characterized in that: when the number of plies of corrugated core (2) is more than or equal to 2 layers, described corrugated core (2) arrangement mode is regularly arranged.
5. corrugation sandwich plate endergonic structure according to claim 3, is characterized in that: when the number of plies of corrugated core (2) is more than or equal to 2 layers, described corrugated core (2) arrangement mode is for being staggered.
6. corrugation sandwich plate endergonic structure according to claim 3, is characterized in that: when the number of plies of corrugated core (2) is more than or equal to 2 layers, and described corrugated core (2) arrangement mode is 0 °/90 ° arrangements.
7. corrugation sandwich plate endergonic structure according to claim 1, is characterized in that: described top panel (1) adopts metal alloy, glass fiber compound material, aramid fiber reinforced composite or carbon fibre composite to make.
8. corrugation sandwich plate endergonic structure according to claim 1, is characterized in that: described corrugated core (2) adopts metal alloy, glass fiber compound material, aramid fiber reinforced composite or carbon fibre composite to make.
9. corrugation sandwich plate endergonic structure according to claim 1, is characterized in that: described sandwich panel (3) adopts metal alloy, glass fiber compound material, aramid fiber reinforced composite or carbon fibre composite to make.
10. corrugation sandwich plate endergonic structure according to claim 1, is characterized in that: described lower panel (4) adopts metal alloy, glass fiber compound material, aramid fiber reinforced composite or carbon fibre composite to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782371.XA CN104441839A (en) | 2014-12-16 | 2014-12-16 | Energy absorption structure for corrugated sandwich panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782371.XA CN104441839A (en) | 2014-12-16 | 2014-12-16 | Energy absorption structure for corrugated sandwich panel |
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| CN104441839A true CN104441839A (en) | 2015-03-25 |
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| CN201410782371.XA Pending CN104441839A (en) | 2014-12-16 | 2014-12-16 | Energy absorption structure for corrugated sandwich panel |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892314A (en) * | 2017-04-12 | 2017-06-27 | 北京航空航天大学 | A kind of nested pipe shock resistance multilevel energy absorption plant |
| CN107013003A (en) * | 2017-05-31 | 2017-08-04 | 句容通源电器有限公司 | A kind of corrugated type is combined GRC wallboards |
| CN107685223A (en) * | 2017-08-03 | 2018-02-13 | 蒙城信和汽车有限公司 | A kind of corrugated structure energy-absorbing plate manufacture craft for automobile protective |
| CN108749211A (en) * | 2018-05-25 | 2018-11-06 | 哈尔滨工程大学 | A kind of battenboard and preparation method thereof of sine and cosine beam structure fuse orthogonal arrangement |
| CN108824731A (en) * | 2018-05-28 | 2018-11-16 | 哈尔滨工程大学 | A kind of sine and cosine beam structure fuse phase difference arrangement battenboard and preparation method |
| CN109483962A (en) * | 2018-11-20 | 2019-03-19 | 华侨大学 | A kind of multi-layer sandwich composite construction and the automobile dash board using the structure |
| CN109693431A (en) * | 2018-09-10 | 2019-04-30 | 缪彬彬 | A kind of aluminium alloy corrugated sheet |
| CN109703132A (en) * | 2019-01-30 | 2019-05-03 | 山东理工大学 | Core spent fuel transport container damper two-way corrugated honeycomb aluminium and manufacturing method |
| CN109742277A (en) * | 2018-12-14 | 2019-05-10 | 华侨大学 | A kind of reinforced high efficient protected battery case |
| CN110303750A (en) * | 2018-03-27 | 2019-10-08 | 波音公司 | Energy absorption composite panel |
| CN114161784A (en) * | 2021-11-29 | 2022-03-11 | 太原理工大学 | Light multidirectional buffering and energy absorbing structure of stainless steel ultrathin strip and preparation method |
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| CN201520926U (en) * | 2009-07-08 | 2010-07-07 | 吴刚 | Paper board with metal screen used for manufacturing packaging paper boxes |
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- 2014-12-16 CN CN201410782371.XA patent/CN104441839A/en active Pending
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Application publication date: 20150325 |