CN110087441B - Radiator with lattice structure - Google Patents
Radiator with lattice structure Download PDFInfo
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- CN110087441B CN110087441B CN201910437744.2A CN201910437744A CN110087441B CN 110087441 B CN110087441 B CN 110087441B CN 201910437744 A CN201910437744 A CN 201910437744A CN 110087441 B CN110087441 B CN 110087441B
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- 239000011159 matrix material Substances 0.000 claims abstract description 10
- 210000004027 cell Anatomy 0.000 claims description 171
- 210000005056 cell body Anatomy 0.000 claims description 4
- 210000003630 histaminocyte Anatomy 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 10
- 238000013461 design Methods 0.000 description 6
- 230000001154 acute effect Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 108010001267 Protein Subunits Proteins 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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- H—ELECTRICITY
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- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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Abstract
The invention provides a radiator with a lattice structure, which is characterized by comprising: two parallel arrangement's rigid plate and pole type cell unit, pole type cell unit sets up between two rigid plates, arrange through the array by a plurality of pole type cell unit portions and form, pole type cell unit includes at least one pole type cell unit, pole type cell unit all includes two pole type cell subunit, pole type cell subunit includes four round bars, the one end of four round bars is connected, as the link, the other end outwards extends, as the distal end, four round bars form the four corner pyramids form, two pole type cell subunit are the mirror image structure each other, and the link of two pole type cell subunit links together, a plurality of pole type cell unit are in the dot matrix arrangement and contact connection on the direction perpendicular with rigid plate, connect through respective distal end one-to-one between two adjacent pole type cell unit.
Description
Technical Field
The invention relates to the field of radiators, in particular to a radiator with a lattice structure.
Background
With the rapid development of electronic information technology, the integration level of electronic devices is higher and higher, and the heat flux density is increased dramatically. The trend of electronic products to be light and thin presents a great challenge to the size and efficiency of the heat sink. In the field of automobiles as well, the rapid development of new energy automobiles puts forward higher requirements on the design of radiators, and the structure is expected to be more compact so as to meet the working requirements of vehicles in a new period; the structural design hopes that the design can be modularized so as to meet the design optimization of the whole vehicle heat cycle system.
At present, the heat radiator with the pyramid structure is generally applied in the industry, and has excellent heat radiation performance compared with the heat radiators with other structures. Here, a pyramid-shaped radiator model is selected for parameter example, as shown in FIG. 11, finite element software is used to analyze the set model, the inlet wind speed is 10m/s, the inlet temperature is 298.15K, the heat source heat flow density is 40000W/m ^2, and the test parameters of the radiator model are shown in Table 1.
TABLE 1 pyramid-shaped radiator parameter table
However, with the improvement of living standard and the improvement of material demand of people, the heat dissipation performance of the heat sink with the pyramid-shaped structure still cannot meet the demand of people, and therefore, it is very urgent to research and develop a new structure of the heat sink so as to obtain the heat sink with better heat dissipation performance.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a heat sink having a lattice structure.
The invention provides a radiator with a lattice structure, which is characterized by comprising: two rigid plates arranged in parallel; and the rod-type cell units are arranged between the two rigid plates and formed by arranging a plurality of rod-type cell unit parts in an array mode, each rod-type cell unit comprises at least one rod-type cell unit, each rod-type cell unit comprises two rod-type cell subunit units, each rod-type cell subunit unit comprises four round rods, one ends of the four round rods are connected and used as connecting ends, the other ends of the four round rods extend outwards and used as far ends, the four round rods form a quadrangular pyramid shape, the two rod-type cell subunit units are of mirror image structures, the connecting ends of the two rod-type cell subunit units are connected together, the rod-type cell unit parts are arranged in a dot matrix mode in the direction perpendicular to the rigid plates and are in contact connection, and the two adjacent rod-type cell unit parts are connected in a one-to-one correspondence mode through the respective.
The heat sink of the lattice structure provided by the invention can also have the following characteristics: the pole type cell unit comprises a plurality of pole type cell unit, wherein the pole type cell unit is projected from the direction vertical to the rigid plate, the included angle between the adjacent round poles in the pole type cell unit is 90 degrees, the pole type cell unit is arranged in a lattice manner according to rows and columns in the plane direction parallel to the rigid plate and is connected through respective far end contacts to form the pole type cell unit, and the connecting ends of the pole type cell unit in the pole type cell unit are on the same plane.
The heat sink of the lattice structure provided by the invention can also have the following characteristics: the rod-type cell subunit uses the horizontal plane of the connecting end of the round rod as a mirror surface to perform mirroring, so as to form the rod-type cell subunit with a mirroring structure.
The heat sink of the lattice structure provided by the invention can also have the following characteristics: wherein the circular rod comprises a rectilinear elliptical rod.
The heat sink of the lattice structure provided by the invention can also have the following characteristics: wherein the round bar comprises a curved elliptical bar.
The heat sink of the lattice structure provided by the invention can also have the following characteristics: the round bar is formed by lofting two ellipses with parallel space planes, wherein a guide line of lofting is a connecting line of central points of the two ellipses.
Action and Effect of the invention
According to the radiator with the dot matrix structure, the radiator comprises two rigid plates and rod-type cell units which are arranged in parallel, the rigid plates are arranged between the two rigid plates, the rod-type cell unit parts are formed by arraying and arranging a plurality of rod-type cell unit parts, each rod-type cell unit comprises at least one rod-type cell unit, each rod-type cell unit comprises two rod-type cell sub-units, each rod-type cell sub-unit comprises four round rods, one ends of the four round rods are connected and used as connecting ends, the other ends of the four round rods extend outwards and used as far ends, and the four round rods form a quadrangular pyramid shape.
In addition, the two rod-shaped cell element subunits are mirror image structures, and the connecting ends of the two rod-shaped cell element subunits are connected together, so that the mirror image structure increases the conduction area of hot air, increases the number of flow field vortices, and enhances the heat conduction effect.
In addition, a plurality of rod-type cell unit portions are arranged in a dot matrix in a direction perpendicular to the rigid plate and are connected in contact with each other, and two adjacent rod-type cell unit portions are connected to each other in a one-to-one correspondence manner via respective distal ends. The lattice arrangement with dense space increases the surface area of the heat conducting material with the same size, thereby generating more flow field vortexes and improving the heat exchange efficiency.
Drawings
Fig. 1 is a schematic model diagram of a lattice structure heat sink of a rod-type cell structure according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a structure of a beam-type cell unit according to a first embodiment of the present invention;
fig. 3 is a schematic diagram of a beam-type cell unit according to one embodiment of the present invention;
fig. 4 is a schematic diagram of a beam-type cell subunit according to one embodiment of the present invention;
FIG. 5 is a schematic diagram of the formation of a round bar in a first embodiment of the invention;
FIG. 6 is a schematic diagram of a lattice structure heat sink of a rod-type cell structure according to a second embodiment of the present invention;
FIG. 7 is a schematic structural view of a beam-type cell unit according to a second embodiment of the present invention;
fig. 8 is a schematic structural diagram of a beam-type cell unit according to a second embodiment of the present invention;
fig. 9 is a schematic structural diagram of a spar-type cell subunit according to a second embodiment of the invention;
FIG. 10 is a schematic diagram of the formation of a round bar in a second embodiment of the invention; and
fig. 11 is a schematic structural diagram of a pyramid-type heat sink model in the prior art.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described with reference to the attached drawings.
< example one >
Fig. 1 is a schematic model diagram of a lattice structure heat sink of a rod-type cell structure according to a first embodiment of the present invention.
As shown in fig. 1, the heat sink 100 of the lattice structure of the rod-type cell structure in the present embodiment includes a first rigid plate 11, a second rigid plate 12, and rod-type cells 13.
The first rigid plate 11 and the second rigid plate 12 are arranged in parallel, the first rigid plate 11 is arranged on the opposite side of the second rigid plate 12, and the first rigid plate 11 and the second rigid plate 12 are the same in shape, size and size, and the first rigid plate 11 is a rectangular plate in this embodiment.
The rod-shaped cell 13 is disposed between the first rigid plate 11 and the second rigid plate 12, and both ends of the rod-shaped cell 13 are in contact with and connected to the first rigid plate 11 and the second rigid plate 12, respectively. The rod cell 13 includes a plurality of rod cell portions 131.
FIG. 2 is a schematic diagram of a structure of a beam-type cell unit according to a first embodiment of the present invention;
as shown in fig. 2, the beam-type cell unit 131 includes at least one beam-type cell unit 1311, and the number of beam-type cell units 1311 is 36 in this embodiment.
Fig. 3 is a schematic diagram of a beam-type cell unit according to one embodiment of the present invention.
As shown in fig. 3, each of the beam cell units 1311 includes a first beam cell subunit 13111 and a second beam cell subunit 13112, and the first beam cell subunit 13111 and the second beam cell subunit 13112 have the same structure, and the structure of the first beam cell subunit 13111 will be described in detail below by way of example.
Fig. 4 is a schematic diagram of a first beam-type cell subunit in accordance with a first embodiment of the invention.
As shown in fig. 4, the first beam-type cell subunit 13111 includes four round beams 131111.
Fig. 5 is a schematic diagram of the formation of a round bar in the first embodiment of the invention.
As shown in fig. 5, in the present embodiment, the round bar 131111 is a linear elliptical bar formed by lofting contour lines in the direction of guide lines, wherein the contour lines are an ellipse a and an ellipse B that are parallel to each other, and the guide lines are straight connecting lines C between the center points of the ellipse a and the ellipse B. The ellipse A and the ellipse B are projected on a horizontal plane, and the acute included angle between the major axis of the ellipse A and the major axis of the ellipse B is 45 degrees.
One ends of the four round bars 131111 are connected to each other to serve as connection ends of the first rod-type cell subunit 13111, the other ends of the four round bars 131111 extend outward, and the four round bars 131111 are integrally formed in a quadrangular pyramid shape to serve as distal ends of the first rod-type cell subunit 13111.
The pole-type cell sub-units 13111 and the pole-type cell sub-units 13112 are mirror images of each other, the horizontal planes of the connection terminals of the pole-type cell sub-units 13111 and the pole-type cell sub-units 13112 are mirror images, and the connection terminals are connected together to form a pole-type cell unit 1311 of a mirror image structure.
As is apparent from the projection of the beam cell unit 1311 in the direction perpendicular to the first rigid plate 11, the angle between the adjacent circular rods 131111 in the beam cell unit 1311 is 90 °, the beam cell units 1311 are arranged in a matrix of rows and columns in the plane direction parallel to the first rigid plate 11, and are connected by their distal ends in contact, thereby forming the beam cell unit 131, and the connection ends of the beam cell units 1311 in the beam cell unit 131 are on the same plane.
The rod-type cell units 131 are arranged in a matrix in a direction perpendicular to the first rigid plate 11 and connected in contact with each other, and two adjacent rod-type cell units 131 are connected to each other at their respective distal ends in a one-to-one correspondence.
The following parameters were tested under the same conditions for the bar-type cell structure heat spreader of the present embodiment and the pyramid-type structure heat spreader of the prior art, and the test results are shown in table 2.
TABLE 2 comparison table of performance parameters of heat dissipators of pyramid-type structure and rod-type cell structure
Effect of the first embodiment
According to the radiator of the lattice structure, the radiator comprises two rigid plates which are arranged in parallel; and the rod-type cell unit is arranged between the two rigid plates and formed by arranging a plurality of rod-type cell unit parts in an array mode, each rod-type cell unit part comprises at least one rod-type cell unit, each rod-type cell unit comprises two rod-type cell subunit, each rod-type cell subunit comprises four round rods, one ends of the four round rods are connected and used as connecting ends, the other ends of the four round rods extend outwards and used as far ends, and the four round rods form a quadrangular pyramid shape.
In addition, the two rod-shaped cell element subunits are mirror image structures, and the connecting ends of the two rod-shaped cell element subunits are connected together, so that the mirror image structure increases the conduction area of hot air, increases the number of flow field vortices, and enhances the heat conduction effect.
In addition, a plurality of rod-type cell unit portions are arranged in a dot matrix in a direction perpendicular to the rigid plate and are connected in contact with each other, and two adjacent rod-type cell unit portions are connected to each other in a one-to-one correspondence manner via respective distal ends. The lattice arrangement with dense space increases the surface area of the heat conducting material with the same size, thereby generating more flow field vortexes and improving the heat exchange efficiency.
Furthermore, because the rod-type cell element part comprises a plurality of rod-type cell element units, the rod-type cell element units are projected from the direction vertical to the rigid plate, the included angle between adjacent circular rods in the rod-type cell element units is 90 °, wherein the rod-type cell element units are arranged in a lattice manner in rows and columns in the plane direction parallel to the rigid plate, and are in pairwise contact and connected through respective far ends to form the rod-type cell element part, and the connecting ends of the rod-type cell element units in the rod-type cell element part are on the same plane, so that the lattice arrangement is dense in the plane manner, the surface area of the heat conduction material under the same size is increased, more flow field vortices are generated, and the heat exchange efficiency is improved.
Furthermore, because the rod-type cell sub-unit is mirrored by taking the horizontal plane of the connecting end of the round rod as a mirror surface, the rod-type cell unit with a mirror image structure is formed, so that the space utilization rate of the mirror image structure is increased, and the size occupation ratio of the radiator is reduced.
Furthermore, because the round bar is formed by lofting two ellipses with parallel space planes, wherein the guide line of the lofting is the straight line connecting the central points of the two ellipses, the round bar has simple design and is easy to form industrialized products.
Experiments prove that the radiator with the rod-type cell structure has better radiating effect under the same conditions.
< example two >
Fig. 6 is a schematic model diagram of a lattice structure heat sink of a rod-type cell structure according to a second embodiment of the present invention.
As shown in fig. 6, the heat sink 200 of the lattice structure of the rod cell structure in the present embodiment includes a first rigid plate 21, a second rigid plate 22, and rod cells 23.
The first rigid plate 21 and the second rigid plate 22 are disposed in parallel, the first rigid plate 21 is disposed on the opposite side of the second rigid plate 22, and the first rigid plate 21 and the second rigid plate 22 are the same in shape, size, and the first rigid plate 21 is a rectangular plate in this embodiment.
The rod-shaped cell body 23 is disposed between the first rigid plate 21 and the second rigid plate 22, and both ends of the rod-shaped cell body 23 are in contact with and connected to the first rigid plate 21 and the second rigid plate 22, respectively. The rod-shaped cell 23 includes a plurality of rod-shaped cell portions 231.
FIG. 7 is a schematic structural view of a beam-type cell unit according to a second embodiment of the present invention;
as shown in fig. 7, the beam-type cell unit 231 includes at least one beam-type cell unit 2311, and the number of beam-type cell units 2311 is 36 in this embodiment.
Fig. 8 is a schematic diagram of a beam-type cell unit according to a second embodiment of the present invention.
As shown in fig. 8, each of the beam-type cell units 2311 includes a first beam-type cell subunit 23111 and a second beam-type cell subunit 23112, and the first beam-type cell subunit 23111 and the second beam-type cell subunit 23112 have the same structure, and the structure of the first beam-type cell subunit 23111 will be described in detail below.
Fig. 9 is a schematic diagram of a first beam-type cell subunit in a second embodiment of the invention.
As shown in fig. 9, the first beam-type cell subunit 23111 includes four round beams 231111.
Fig. 10 is a schematic diagram of the formation of a round bar in the second embodiment of the present invention.
As shown in fig. 10, in the present embodiment, the round bar 231111 is a curved elliptical bar, and is formed by lofting the contour lines in the direction of the guide lines, where the contour lines are the parallel ellipses D and E, and the guide lines are the straight line connecting the center points F of the ellipses D and E.
The round bar is formed by lofting contour lines along the direction of a guide line, wherein the contour lines are an ellipse D and an ellipse E which are parallel to each other, and the guide line is a curve connecting line F between the central points of the ellipse D and the ellipse E. The ellipse D and the ellipse E are projected on a horizontal plane, and an acute included angle between a long axis of the ellipse D and a long axis of the ellipse E is 45 degrees.
One ends of the four round bars 231111 are connected to serve as connection ends of the first rod-shaped cell subunit 23111, the other ends of the four round bars 231111 extend outward, respectively, to serve as distal ends of the first rod-shaped cell subunit 23111, and the four round bars 231111 are integrally formed in a quadrangular pyramid shape.
The bar- type cell sub-units 23111 and 23112 are mirror images of each other, with the horizontal planes of the connecting ends of the bar- type cell sub-units 23111 and 23112 being mirror images, and the connecting ends are connected together to form a mirror image of the bar-type cell unit 2311.
As is apparent from the projection of the bar-type cell units 2311 in the direction perpendicular to the first rigid plate 21, the angle between the adjacent circular rods 231111 in the bar-type cell units 2311 is 90 °, the bar-type cell units 2311 are arranged in a matrix of rows and columns in the plane direction parallel to the first rigid plate 21 and are connected by their distal ends in contact, thereby forming the bar-type cell units 231, and the connection ends of the bar-type cell units 2311 in the bar-type cell units 231 are on the same plane.
The rod-type cell units 231 are arranged in a matrix in a direction perpendicular to the first rigid plate 21 and connected in contact with each other, and two adjacent rod-type cell units 231 are connected to each other at their respective distal ends in a one-to-one correspondence.
The following parameters were tested under the same conditions for the bar-type cell structure heat spreader of the present embodiment and the pyramid-type structure heat spreader of the prior art, and the test results are shown in table 3.
TABLE 3 pyramid-type and rod-type cell structure radiator performance parameter comparison table
Effects and effects of example two
According to the radiator of the lattice structure, the radiator comprises two rigid plates which are arranged in parallel; and the rod-type cell unit is arranged between the two rigid plates and formed by arranging a plurality of rod-type cell unit parts in an array mode, each rod-type cell unit part comprises at least one rod-type cell unit, each rod-type cell unit comprises two rod-type cell subunit, each rod-type cell subunit comprises four round rods, one ends of the four round rods are connected and used as connecting ends, the other ends of the four round rods extend outwards and used as far ends, and the four round rods form a quadrangular pyramid shape.
In addition, because the two rod-shaped cell element subunits are mirror image structures of each other, and the connecting ends of the two rod-shaped cell element subunits are connected together, the mirror image structure increases the conduction area of hot air, increases the number of flow field vortices, and enhances the heat conduction effect.
In addition, since the plurality of the rod-type cell unit portions are arranged in a lattice in a direction perpendicular to the rigid board and are connected in contact, two adjacent rod-type cell unit portions are connected in one-to-one correspondence via the respective distal ends. Therefore, the lattice arrangement with dense space increases the surface area of the heat conducting material with the same size, thereby generating more flow field vortexes and improving the heat exchange efficiency.
Furthermore, because the rod-type cell unit comprises a plurality of rod-type cell unit units, the rod-type cell unit units are projected from the direction vertical to the rigid plate, the included angle between adjacent circular rods in the rod-type cell unit is 90 °, wherein the rod-type cell unit units are arranged in a lattice manner in rows and columns in the plane direction parallel to the rigid plate and are connected through respective far ends in a contact manner to form the rod-type cell unit, and the connecting ends of the rod-type cell unit in the rod-type cell unit are on the same plane, the lattice arrangement is dense in the plane, so that the surface area of the heat conducting material under the same size is increased, and more flow field vortices are generated, and the heat exchange efficiency is improved.
Furthermore, because the rod-type cell sub-unit is mirrored by taking the horizontal plane of the connecting end of the round rod as a mirror surface, the rod-type cell unit with a mirror image structure is formed, so that the space utilization rate of the mirror image structure is increased, and the size occupation ratio of the radiator is reduced.
Furthermore, because the round bar is formed by lofting two ellipses with parallel space planes, wherein the guide line of the lofting is the curve connecting the central points of the two ellipses, the round bar has simple design and is easy to form industrialized products.
Experiments prove that the radiator with the rod-type cell structure has better radiating effect under the same conditions.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
For example, in the first and second embodiments, the round bar is formed in a lofted manner, but in practical applications, the round bar may also be formed by 3D printing.
In the first embodiment, when the ellipse a and the ellipse B are projected on the horizontal plane, the acute angle between the major axis of the ellipse a and the major axis of the ellipse B is 45 degrees, but in practical applications, when the ellipse a and the ellipse B are projected on the horizontal plane, the acute angle between the major axis of the ellipse a and the major axis of the ellipse B may be any angle.
In the second embodiment, when the ellipse D and the ellipse E are projected on the horizontal plane, the acute angle between the major axis of the ellipse D and the major axis of the ellipse E is 45 degrees, but in practical applications, when the ellipse D and the ellipse E are projected on the horizontal plane, the angle between the major axis of the ellipse D and the major axis of the ellipse E may be any angle.
Claims (4)
1. A heat sink of lattice structure, comprising:
two rigid plates arranged in parallel and a rod-shaped cell body,
the rod-shaped cell body is arranged between the two rigid plates and formed by arranging a plurality of rod-shaped cell parts in an array,
the mast cell unit comprising at least one mast cell unit, the mast cell units each comprising two mast cell subunits,
the rod-type cell element subunit comprises four round rods, one ends of the four round rods are connected and used as connecting ends, the other ends of the four round rods extend outwards and used as far ends, the four round rods form a quadrangular pyramid shape,
the two pole-type cell sub-units are mirror images of each other, and the connecting ends of the two pole-type cell sub-units are connected together,
a plurality of the rod-shaped cell units are arranged in a dot matrix and connected in contact in a direction perpendicular to the rigid plate, two adjacent rod-shaped cell units are connected in one-to-one correspondence with each other via the distal ends thereof,
wherein each round rod is a curved elliptical rod.
2. The lattice structured heat sink of claim 1, wherein:
the pole-type cell unit includes a plurality of pole-type cell units,
wherein the projection is performed on the rod-type cell unit from the direction perpendicular to the rigid plate, the included angle between the adjacent round rods in the rod-type cell unit is 90 degrees,
the rod-shaped cell units are arranged in a lattice manner in rows and columns in a plane direction parallel to the rigid plate, and are connected in pairs through the respective distal ends to form the rod-shaped cell units,
the connection ends of the pole-type cell units in the pole-type cell part are on the same plane.
3. The lattice structured heat sink of claim 1, wherein:
the rod-type cell element subunit is mirrored by taking a horizontal plane of the connecting end of the round rod as a mirror surface, so as to form the rod-type cell element unit with a mirror image structure.
4. The lattice structured heat sink of claim 1, wherein:
the round bar is formed by lofting two ellipses with parallel spatial planes,
wherein the lofting guide line is a connection line of two ellipse center points.
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| CN103612007A (en) * | 2013-11-21 | 2014-03-05 | 中国航空工业集团公司北京航空制造工程研究所 | Preparation method of high-temperature alloy three-dimensional lattice sandwich structure |
| EP3415856A1 (en) * | 2017-06-13 | 2018-12-19 | Nokia Solutions and Networks Oy | Modular heat exchanger and method for making the same |
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| CN104260436A (en) * | 2014-10-10 | 2015-01-07 | 哈尔滨工业大学 | Metal pyramid type lattice sandwich plate and preparation method thereof |
| CN104553090B (en) * | 2015-02-03 | 2016-07-06 | 哈尔滨工业大学 | A kind of preparation method of the light dot matrix structure battenboard collecting heat conduction and be carried on one |
| JP6340641B2 (en) * | 2016-11-11 | 2018-06-13 | マツダ株式会社 | Heat transfer device |
| CN106968726B (en) * | 2017-05-12 | 2019-09-03 | 中国航发北京航空材料研究院 | A kind of sector with dot matrix cooling structure obturages block |
| CN107448528A (en) * | 2017-09-01 | 2017-12-08 | 西北工业大学 | The composite lightweight structure and structural body of high-energy absorption rate and comfort cushioning ability |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103612007A (en) * | 2013-11-21 | 2014-03-05 | 中国航空工业集团公司北京航空制造工程研究所 | Preparation method of high-temperature alloy three-dimensional lattice sandwich structure |
| EP3415856A1 (en) * | 2017-06-13 | 2018-12-19 | Nokia Solutions and Networks Oy | Modular heat exchanger and method for making the same |
| CN109737299A (en) * | 2018-12-03 | 2019-05-10 | 董亮 | The processing method of octahedra lattice structure and its derivative topology configuration lattice structure |
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