CN210825411U - Microstructure and flexible surface layer structure with same - Google Patents
Microstructure and flexible surface layer structure with same Download PDFInfo
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- CN210825411U CN210825411U CN201921499218.0U CN201921499218U CN210825411U CN 210825411 U CN210825411 U CN 210825411U CN 201921499218 U CN201921499218 U CN 201921499218U CN 210825411 U CN210825411 U CN 210825411U
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Abstract
The utility model relates to the field of flexible surface structure design, and provides a microstructure and a flexible surface structure with the microstructure, wherein the microstructure comprises a plurality of stages of microstructure monomers; the single microstructure monomer is formed by connecting a top part, a connecting part and a bottom part; the top part is of an upward convex curved surface structure, the outer surface of the connecting part is of a closed curved surface structure, and the edge of the bottom part is provided with an arc-shaped chamfer; the upper end and the top of the connecting part and the lower end and the bottom of the connecting part are both connected smoothly. The microstructure and the flexible surface layer structure provided by the utility model have the advantages that by arranging the multi-stage microstructure monomers and arranging the smooth curved surface structure on the surface of each single microstructure monomer, the stress concentration of the structure is reduced in the stress process, the stable structure of the microstructure is effectively protected, and meanwhile, the materials distributed on the surface of the microstructure can be protected from being damaged; through the gradual extension of the multi-stage microstructure monomers, the flexibility of the structure is effectively improved, and therefore the sensitivity of the microstructure in the stress process is improved.
Description
Technical Field
The utility model relates to a flexible top layer structural design field, more specifically relates to a micro-structure and have flexible top layer structure of this micro-structure.
Background
The natural micro-composite structure on the surface of animals and plants has attracted much attention from scientists in nature. Through learning to the nature, the influence of a high-level structure, namely a micro composite structure, on the performance of the material is known, and the understanding of the surface processing effect of the material is deepened.
Flexible materials have many advantages not possessed by other materials, such as comfort and environmental adaptability, and have important applications in many fields, such as microfluidics, superhydrophobicity, self-cleaning, device surface modification and the like, through the design of the surface structure and the coating of the corresponding materials.
However, the surface of the existing flexible material is provided with various microstructures, and the structure of the flexible material and the surface layer material are damaged due to stress concentration when the flexible material is stressed, so that the flexibility and the service life of the material are seriously influenced, and the application of the flexible material is limited.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The embodiment of the utility model provides a micro-structure and have flexible top layer structure of this micro-structure to solve or partially solve current flexible material surface micro-structure and easily produce stress concentration and the poor problem of flexibility effect.
(II) technical scheme
In order to solve the above technical problem, according to the first aspect of the embodiments of the present invention, a microstructure is provided, including: a multi-stage microstructured monomer;
each single microstructure monomer of each stage comprises a top part, a connecting part and a bottom part which are sequentially connected from top to bottom;
the top part is of an upward convex curved surface structure, the outer surface of the connecting part is of a closed curved surface structure, the cross sections of the connecting parts are sequentially increased from top to bottom, and the edge of the bottom part is provided with an arc-shaped chamfer;
the upper end of the connecting part is smoothly connected with the top, and the lower end of the connecting part is smoothly connected with the bottom;
each microstructure monomer of the (N-1) th level is provided with at least one microstructure monomer of the (N) th level, and the bottom of the microstructure monomer of the (N) th level is connected with the surface of the corresponding microstructure monomer of the (N-1) th level; wherein N is an integer of 2 or more.
Further, the number of the microstructure monomers of the 1 st stage is 1, and the number of the microstructure monomers of the N th stage is plural;
the plurality of microstructured monomers of the nth stage are distributed across the surface of each of the microstructured monomers of the N-1 st stage.
Further, the cross-sectional area of the single microstructure monomer of each stage increases from top to bottom.
Further, the bottom of each single microstructure monomer is of a disc-shaped structure, and the connecting part of each single microstructure monomer is of a truncated cone structure.
Further, the number of stages of the microstructure monomer is at most 6 stages.
Further, the top curvature radius of each level of the microstructure monomer is 5 um-1000 um, the bottom diameter of each level of the microstructure monomer is 5 um-2000 um, and the height of each level of the microstructure monomer is 5 um-2000 um.
Further, the top, the connecting part and the bottom of the single microstructure monomer are integrally molded; the adjacent microstructure monomers at each stage are integrally formed.
Further, the microstructure monomers are all made of silicon rubber.
The embodiment of the utility model provides a still provide a flexible surface structure, including the basic unit plane and the utility model provides a first aspect is arbitrary the micro-structure, level 1 the free bottom of micro-structure with the basic unit plane is connected.
Further, the number of the microstructure monomers of the 1 st stage is multiple, and the microstructure monomers of the 1 st stage are uniformly distributed on the plane of the base layer.
(III) advantageous effects
The embodiment of the utility model provides a micro-structure and have flexible surface structure of this micro-structure, through setting up multistage micro-structure monomer, and single micro-structure monomer surface is smooth curved surface structure to reduce the stress concentration of structure in the atress process, effectively protect self stable in structure, also can protect its surface distributed material not to destroy simultaneously; through the gradual extension of the multi-stage microstructure monomers, the flexibility of the structure is effectively improved, and therefore the sensitivity of the microstructure in the stress process is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a single microstructure monomer according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a secondary microstructure monomer in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a three-level microstructure monomer according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a flexible skin structure in an embodiment of the present invention;
in the figure: 1. a microstructure monomer; 2. a base layer plane; 11. a top portion; 12. a connecting portion; 13. a bottom portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 3, embodiments of the present invention provide a microstructure, which includes multiple stages of microstructure monomers, and each stage of microstructure monomers may be 1 or more.
Wherein, the single microstructure monomer 1 of each stage comprises a top part 11, a connecting part 12 and a bottom part 13 which are sequentially connected from top to bottom, and the top part 11 and the bottom part 13 are connected into an integral structure by the connecting part 12.
Specifically, in order to reduce the stress concentration problem, the integral structure formed by connecting the top portion 11, the connecting portion 12 and the bottom portion 13 is configured to have a microstructure without a right angle.
The top part 11 is of an upward convex curved surface structure, and the lower end of the top part 11 is connected with the connecting part 12; the outer surface (non-connecting end) of the connecting part 12 is a closed curved surface structure, and the sectional area of the connecting part is sequentially increased from top to bottom; the edge of bottom 13 is equipped with circular arc chamfer or to adopt smooth connection to carry on excessively between the upper end of connecting portion 12 and top 11, also adopt smooth connection to carry on excessively between the lower extreme of connecting portion 12 and the bottom 13, thereby make this free surface of micro-structure be curved surface or arc surface, have stronger hydrophobicity, be favorable to improving the protection to structure self.
It should be noted that, the smooth connection in the above embodiments may be connected by using a relatively smooth curved surface, the curved surface may be of a convex or concave structure, and may be adjusted according to the size of the connection, as long as the connection is smooth.
Meanwhile, in order to ensure the flexibility of the microstructure, improve the sensitivity in the stress process, and reduce the structural stress concentration, the hierarchical distribution relationship of the multi-level microstructure units is specifically explained in this embodiment.
Specifically, each single microstructure monomer 1 of the nth-1 stage is provided with at least one microstructure monomer 1 of the nth stage, the monomer microstructure 1 of the next stage is equivalent to the surface of the monomer microstructure 1 of the previous stage to be branched step by step, and the number of the microstructure monomers 1 of each stage is increased step by step relative to the previous stage, which is similar to cell division. Wherein, the bottom 13 of the microstructure monomer 1 of the Nth level is connected with the surface of the corresponding microstructure monomer 1 of the Nth-1 level; wherein N is an integer of 2 or more. Fig. 1 to 3 show the primary, secondary and tertiary microstructures in this order, and the more the number of stages, the greater the flexibility.
In order to ensure the structural stability of the entire microstructure, the number of stages of the microstructure monomer 1 is at most 6, and certainly can be at least 1, and the larger the number of stages, the higher the flexibility, but the lower the corresponding structural stability.
According to the microstructure provided by the embodiment, by arranging the multi-stage microstructure monomers, and the surfaces of the single microstructure monomers at each stage are of smooth curved surface structures, the stress concentration of the structure is reduced in the stress process, the stable structure of the microstructure is effectively protected, and meanwhile, the materials distributed on the surface of the microstructure can be protected from being damaged; meanwhile, through the gradual extension of the multi-stage microstructure monomers, the flexibility of the structure is effectively improved, and therefore the sensitivity of the microstructure in the stress process is improved.
Further, in this embodiment, the number of the microstructure monomers of the 1 st stage is 1, and the number of the microstructure monomers of the nth stage is multiple, that is, the number of the microstructure monomers of each stage of the 2 nd stage and above is equivalent to multiple, so that the contact surface of the microstructure is effectively improved;
starting from the 2 nd stage, a plurality of micro-structural monomers 1 of the next stage are distributed on the surface of each micro-structural monomer 1 of the previous stage, and the intervals among the plurality of micro-structural monomers 1 can be set according to actual needs.
On the basis of the above embodiment, in order to make the surface of the whole micro-structural unit smoother, the cross-sectional area of the single micro-structural unit 1 of each stage is increased from top to bottom in sequence, wherein the cross-sectional area includes the connection part 12 and the top part 11, and the connection part 12 and the bottom part 13.
Further, in the above embodiment, the bottom 11 of a single microstructure monomer 1 is a disc-shaped structure with a convex edge, the connecting portion 12 of the single microstructure monomer 1 is a truncated cone structure, and the surfaces of the connecting portions 12 of the single microstructure monomers 1 of the previous stage of the next stage are arranged in a conical array, which is beneficial to further improving the structural stability and flexibility of the whole microstructure.
In the above embodiment, the top curvature radius of each microstructure monomer in each stage fluctuates between 5um and 1000um, and specifically, the corresponding curvature radii are different according to the difference of the stage numbers, and the overall variation trend is that the higher the stage number is, the smaller the corresponding curvature radius is.
Similarly, the diameter of the bottom of each single microstructure monomer 1 varies from 5um to 2000um, the height of each single microstructure monomer varies from 5um to 2000um, and the overall variation trend is that the higher the number of stages is, the smaller the diameter of the corresponding bottom is, and the smaller the height is.
In the above embodiments, the top 11, the connecting portion 12 and the bottom 13 of a single microstructure monomer 1 are integrally formed, so as to ensure the structural stability of the whole microstructure monomer and facilitate the improvement of the structural flexibility. In addition, the adjacent microstructure monomers at each stage are also integrally formed, namely a plurality of branches extend from the trunk, and the branches and the trunk form a whole. Moreover, the microstructure monomers of each stage are made of silicon rubber, and the silicon rubber can specifically include materials such as PDMS (polydimethylsiloxane), Dow Corning-184 and the like.
On the basis of each of the above embodiments, as shown in fig. 4, the embodiment of the present invention further provides a flexible surface structure, which includes a base layer plane 2 and a microstructure as described in any of the above embodiments, wherein the bottom of the 1 st-level microstructure monomer 1 is connected to the base layer plane 2, so as to improve the flexibility and sensitivity of the base layer plane. The base layer plane 2 can also be made of flexible materials, including metal flexible materials and nonmetal flexible materials, and when the base layer plane 2 and the 1 st-level microstructure monomer 1 are made of the same flexible materials, the bottom of the 1 st-level microstructure monomer 1 and the base layer plane 2 can be integrally formed.
Furthermore, the number of the 1 st-level micro-structural monomers 1 can be multiple, and the 1 st-level micro-structural monomers 1 are uniformly distributed on the base layer plane 2, so that the surface of the flexible surface layer structure has stronger flexibility, super-hydrophobicity and self-cleaning property, and can be widely applied to industries of clothes, cleaning materials and the like.
The flexible surface structure provided by the embodiment comprises a plurality of multi-stage micro-structural monomers, wherein the micro-structural monomers are uniformly distributed on the base layer plane, the stress concentration of the micro-structural monomers is small, the base layer plane has high flexibility and sensitivity, materials coated on the surface layer of the flexible surface structure can be effectively protected, the service life of the flexible surface structure is prolonged, and the application range is wide.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A microstructure, comprising: a multi-stage microstructured monomer;
each single microstructure monomer of each stage comprises a top part, a connecting part and a bottom part which are sequentially connected from top to bottom;
the top part is of an upward convex curved surface structure, the outer surface of the connecting part is of a closed curved surface structure, and the edge of the bottom part is provided with an arc-shaped chamfer;
the upper end of the connecting part is smoothly connected with the top, and the lower end of the connecting part is smoothly connected with the bottom;
each microstructure monomer of the (N-1) th level is provided with at least one microstructure monomer of the (N) th level, and the bottom of the microstructure monomer of the (N) th level is connected with the surface of the corresponding microstructure monomer of the (N-1) th level; wherein N is an integer of 2 or more.
2. The microstructure of claim 1, wherein there is 1 microstructure monomer of 1 st stage and a plurality of microstructure monomers of N th stage;
the plurality of microstructured monomers of the nth stage are distributed across the surface of each of the microstructured monomers of the N-1 st stage.
3. The microstructure according to claim 1 or 2, wherein the cross-sectional area of the individual microstructure monomers of each stage increases sequentially from top to bottom.
4. The microstructure of claim 3, wherein the base of a single microstructure element is a disk-like structure and the connecting portion of a single microstructure element is a truncated cone structure.
5. The microstructure of claim 1, wherein the microstructure monomers have a number of orders of at most 6.
6. The microstructure according to claim 3, wherein the radius of curvature of the top of each stage of the microstructure monomer is 5um to 1000um, the diameter of the bottom of each stage of the microstructure monomer is 5um to 2000um, and the height of each stage of the microstructure monomer is 5um to 2000 um.
7. The microstructure of claim 1, wherein the top, connecting portion and bottom of a single microstructure monomer are integrally formed; the adjacent microstructure monomers at each stage are integrally formed.
8. The microstructure according to claim 7, wherein the microstructure monomers are silicone rubber.
9. A flexible skin structure comprising a substrate plane and a microstructure according to any one of claims 2 to 8, wherein the base of the microstructured monomer of stage 1 is connected to the substrate plane.
10. The flexible skin structure of claim 9 wherein the microstructured monomer of stage 1 is a plurality and the plurality of microstructured monomers of stage 1 are uniformly distributed in the plane of the base layer.
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| CN201921499218.0U CN210825411U (en) | 2019-09-10 | 2019-09-10 | Microstructure and flexible surface layer structure with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422819A (en) * | 2019-09-10 | 2019-11-08 | 中国科学院理化技术研究所 | A kind of micro-structure and the flexible skin structure with the micro-structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422819A (en) * | 2019-09-10 | 2019-11-08 | 中国科学院理化技术研究所 | A kind of micro-structure and the flexible skin structure with the micro-structure |
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