CN109449604A - A kind of high-precision hexagonal space bilayer reflecting surface antenna back frame - Google Patents
A kind of high-precision hexagonal space bilayer reflecting surface antenna back frame Download PDFInfo
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- CN109449604A CN109449604A CN201811552047.3A CN201811552047A CN109449604A CN 109449604 A CN109449604 A CN 109449604A CN 201811552047 A CN201811552047 A CN 201811552047A CN 109449604 A CN109449604 A CN 109449604A
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- 238000004804 winding Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 241001149930 Protura <class> Species 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 210000003456 pulmonary alveoli Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a kind of high-precision hexagonal space bilayer reflecting surface antenna back frames, it is related to the high-precision reflecting surface antenna back frame structure-design technique in the fields such as communication, observing and controlling and radio astronomy.It is intended to provide a kind of high-precision, lightweight, antenna back frame easy to install and suitable for mass production.It includes upper chord plane, lower chord plane, space brace, skew back bar, gate frame, connecting bracket, braced frame, positioning pillars and bolt sphere etc..Backrest shape is hexagonal, including upper and lower two layers, and upper chord plane is made of triangular element, lower chord plane is made of triangle and quadrilateral units, it is combined between upper layer and lower layer by pyrometric cone, forms stable space structure, each rod piece of backrest is connected with each other by bolt sphere.The present invention has the characteristics that the rigidity of structure is good, light-weight and with high accuracy, especially suitable for the antenna back frame structure in large and medium-sized reflector antenna.
Description
Technical field
The present invention relates to the high-precision reflector antennas in the fields such as communication, observing and controlling and radio astronomy, more particularly,
It is related to the back frame structure of high accuracy circular symmetric reflective surface antenna or offset reflector antenna, is particularly suitable for high-volume, quickly peace
The production and manufacture of the medium caliber reflector antenna of dress.
Background technique
Reflecting surface antenna back frame is the important component of reflector antenna, and top is connected with aerial panel, lower part with
Mounting is connected.Antenna back frame is used to support panel and provides rigidity for it, the surface accuracy and main performance of antenna directly by
Backrest determines.Therefore, reflecting surface antenna back frame structure is the core component in entire antenna system.
Traditional reflecting surface antenna back frame is usually to be made of centerbody, radiation beam and ring pull rod etc., radiates beam along center
The distribution of body even circumferential, and connected by ring pull rod and form antenna back frame.Centerbody uses drum forms, and inside is lined with reinforcing rib
Plate, welded molding；If radiation Liang Shiyou dry shaped material forms truss structural after weld formation.Although this back frame structure form
It can satisfy antenna electrical performance index, but have the following deficiencies:
1 weight weight.Since centerbody is formed using solid plate, it is being internally provided with circumferential and radial stiffener plate, outside
Portion is provided with numerous flanges connecting with radiation beam, and antenna back frame weight is caused to increase.
2 are also easy to produce deformation.Its main component of traditional antenna back frame uses welding fabrication, is also easy to produce answers in the fabrication process
Power is concentrated, and the reflector antenna after causing installation is also easy to produce deformation, reduces antenna performance.
3 surface accuracies are poor.The traditional antenna backrest being made of centerbody and radiation beam and ring pull rod, center body position
Rigidity is very high, and radiates that beam position stiffness is on the weak side, causes backrest discontinuous in the rigidity of binding site, so that antenna surface is smart
Degree is deteriorated.
China Patent Publication No. CN101527384A, it is entitled " equilibrium stable space grid reflecting surface antenna back frame
Manufacturing method " in disclose a kind of design method of reflecting surface antenna back frame.Although this method can be improved some antenna back frames
Overall stiffness, but had the disadvantage that in configuration aspects
Antenna back frame in 1 invention is made of three-decker: upper chord plane, lower chord plane and face where the conical point of quadrangle.This
It is big antenna back frame rod piece distribution density is resulted in, processing and manufacturing is complicated, weight weight.
Chord plane is made of quadrilateral units on antenna back frame in 2 inventions, it is well known that quadrilateral structure has shakiness
Qualitative, therefore, this method easily makes reflector antenna generate local deformation in doing pitching movement, influences the surface essence of antenna
Degree.
3 inventions only relate to round symmetric reflective surface antenna, are polygon for non-circular symmetric reflective surface antenna or shape
Reflector antenna, party's rule are not applicable.
China Patent Publication No. CN104638381A, it is entitled " five equal part reflecting surface unit of FAST radio telescope space "
In disclose a kind of triangle reflecting surface unit of double-layer structure, although this method is suitable for spy as FAST radio telescope
Determine engineering, but the application for general reflector antenna, has the following deficiencies:
The cell configuration provided in 1 invention is triangle, and reflector antenna generally circular, oval or
Polygon, therefore the invention is not suitable for general reflecting surface antenna back frame structure.
Reflecting surface unit supporting point in 2 inventions is located at the vertex position of outside three of triangle.This kind of supporting way
For reflector antenna, it is huge to will lead to support construction volume.
Reflection surface panel in 3 inventions uses perforated panel or aluminium alloy wire side panel, and the panel of this class formation is uncomfortable
With working in high-frequency reflector antenna.
The content of invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of high-precision hexagonal space bilayer reflectings surface
Antenna back frame, compared with existing reflecting surface antenna back frame, have precision is high, light-weight, rigidity greatly and being capable of Fast Installation
The characteristics of.Reflecting surface antenna back frame of the present invention uses hexagonal space bilayer bolt sphere structure type, and upper chord plane is by triangle
Unit composition, bolt sphere can effectively improve the surface accuracy and installation of antenna using hollow structure and through numerical control machine-shaping
Efficiency, while can reduce manufacturing cost and installation, transportation cost.
In order to solve the above technical problems, the present invention is to be achieved by the following technical programs.
A kind of high-precision hexagonal space bilayer reflecting surface antenna back frame, it is characterised in that: including being mirrored into a symmetrical left side
Space frame and right space frame, left space frame include for the connected upper chord plane 1 with antenna reflective face and for providing firm support
It is oppositely arranged, is formed between upper chord plane 1 and lower chord plane 2 empty at equal intervals before and after the lower chord plane 2 of structure, upper chord plane 1 and lower chord plane 2
Alveolus；
Upper chord plane 1 includes that multiple groups are winded up bar portion, and every group of bar portion of winding up is end to end at closed triangle by three top booms,
Each top boom, which connects, is arranged into the curved-surface structure with reflection trench, the public affairs that each top boom group intersects with adjacent top boom group
Side shares a top boom altogether, forms the net surface structure with multiple triangle dead zones by multiple top boom groups；
Lower chord plane 2 includes multiple groups lower edge bar portion, and every group of lower edge bar portion is end to end at closed triangle by three lower booms,
Each lower boom, which connects, is arranged into the curved-surface structure with reflection trench, the public affairs that each lower boom group intersects with adjacent lower boom group
Side shares a top boom altogether, forms the net surface structure with multiple triangle dead zones by multiple lower boom groups；
Each center for winding up bar portion and each lower edge bar portion is staggered, the vertex for bar portion of each winding up and three phases successively phase
The lower edge bar portion center vertical line connect is overlapped, and the vertex of each lower edge bar portion passes through space brace 3 and is connected to positioned at center vertical line
On bar portion fixed point of winding up at form three face gold word structure of space, each space brace 3 is all located in cavity zone；
Pass through multiple equidistant cross bar connections, multiple equidistant cross bars between the left space frame and right space frame
Completely cut off multiple rectangles being linearly arranged successively out.
Further, the upper chord plane 1 is the hexagon that each edge line is broken line.
It further, further include braced frame 7, the central lower of lower chord plane 2 is provided with the open region for accommodating braced frame 7
Domain, braced frame 7 are arranged in open area and are fixedly connected with upper chord plane 1.
Further, the braced frame 7 is trapezoidal.
It further, further include gate frame 5, gate frame 5 is by the left gate frame and You Men that are symmetrically mirrored into
Type frame composition, left gate frame are connect with right gate frame by ring flange, and left gate frame and right gate frame all pass through
Two V-type framves are connected at the corresponding vertex of braced frame 7.
Further, the top boom, lower boom, space brace 3, skew back bar 4 all pass through end high intensity outstanding
Bolt collocation nut is fastened on round tube conehead.
Further, the intermediate reinforcement support that bottom is connected to by upper bottom edge is fixed with along the middle line of braced frame 7
Bar, the upper bottom edge and bottom of braced frame 7 are steel square tube, and two sides waist edge is steel rectangular tube, and centre reinforces support rod and is
Steel rectangular tube.
Further, the braced frame 7 includes left trunnion 7-1 and right trunnion 7-2, Zuo Zhier 7-1 and right trunnion 7-2
It is connected by ring flange with the long bottom edge of braced frame 7；The braced frame 7 further includes pivot flange disk 7-3, pivot flange
Reinforce support rod prolongation among disk 7-3 and braced frame 7 to be connected.
It has the following beneficial effects: compared with the background technology, the present invention
1 compared with prior art, the present invention antenna back frame overcomes traditional round or ellipse using hexagonal structure
The not tractable defect of structural edge, simplifies the design of antenna back frame and panel；Chord plane uses triangular element group in backrest
At, have stable mechanical property, be able to ascend the surface accuracy of antenna.
It is connected between 2 upper and lower chord planes by triangle wimble structure, is distributed rod piece distribution in space uniform, overcomes biography
The backrest radiation beam of system is the deficiency of planar structure, and the rigidity of antenna back frame greatly improved, enhance the dynamic of antenna system
Characteristic.
Connection between the upper chord planes of 3 inventive antenna backrests, lower chord plane, space brace and skew back bar is all made of numerical control and adds
The bolt sphere of work, therefore, it is assembled after antenna back frame precision is high, interchangeability is good, manufactured especially suitable for producing in enormous quantities.
4 inventive antenna backrests are made of member structure, without the central body portion of traditional reflector antenna, this
Sample had not only reduced difficulty of processing but also had alleviated the weight of antenna back frame.
All rod pieces of 5 antenna back frames and structural member pass through bolt sphere and ring flange is attached, transporting after decomposition
Unit is adapted to highway transportation and TEU (Twenty-foot Equivalent Unit).
Chord plane is made of triangular element on 6 inventive antenna back frame structures, is very suitable for the panel of supported at three point, by
There is no superfluous constraint in supported at three point panel, be chiefly used in high-frequency, on high-precision telescope antenna, thus the present invention more suitable for
Large-scale high-precision reflecting surface antenna back frame.
In short, present inventive concept is ingenious, and clear thinking, it is easy to accomplish, both solved traditional reflecting surface antenna back frame knot
The problem that structure precision is low, weight is heavy, and the rigidity and installation accuracy of antenna back frame are improved, it is important to one kind of the prior art
It improves.
Detailed description of the invention
Fig. 1 is the overall construction drawing of the embodiment of the present invention；
Fig. 2 is the upper chord plane structural schematic diagram of the embodiment of the present invention；
Fig. 3 is the lower chord plane structural schematic diagram of the embodiment of the present invention；
Fig. 4 is the space brace and skew back rod structure schematic diagram of the embodiment of the present invention；
Fig. 5 is the gate frame structure chart of the embodiment of the present invention；
Fig. 6 is the connection mounting structure figure of the embodiment of the present invention；
Fig. 7 is three face gold word structure structure chart of space；
Fig. 8 is support frame structure figure；
The meaning of each label is as follows in figure: upper chord plane 1, top boom 1a, lower chord plane 2, space brace 3, three face gold word of space
Structure 4, gate frame 5, braced frame 7, Zuo Zhier 7-1, right trunnion 7-2, pivot flange disk 7-3.
Specific embodiment
The invention will be further described with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1-3, providing a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame includes being mirrored into pair
The left space frame and right space frame of title, left space frame include for the upper chord plane 1 connected with antenna reflective face and for providing surely
The lower chord plane 2 of clamped support structure, upper chord plane 1 is oppositely arranged with lower 2 front and back of chord plane or up and down, between upper chord plane 1 and lower chord plane 2
Equidistant cavity zone is formed, is used to be placed in the connection structure for being coupled the two in cavity zone
As shown in Fig. 2, upper chord plane 1 includes that multiple groups are winded up bar portion, every group wind up bar portion by three top booms it is end to end at
Closed triangle, each top boom 1a connect is arranged into reflection trench curved-surface structure, each top boom group and it is adjacent on
The common edge of chord member group intersection shares a top boom, forms the wire side knot with multiple triangle dead zones by multiple top boom groups
Structure；
As shown in figure 3, lower chord plane 2 include multiple groups lower edge bar portion, every group of lower edge bar portion by three lower booms it is end to end at
Closed triangle, each lower boom, which connects, is arranged into the curved-surface structure with reflection trench, each lower boom group and adjacent lower edge
The common edge of bar group intersection shares a top boom, forms the wire side knot with multiple triangle dead zones by multiple lower boom groups
Structure, the top boom, lower boom, space brace 3, skew back bar 4 are all tight by end high-strength bolt collocation nut outstanding
Gu to round tube conehead；
As shown in figures 1 and 3, each center for winding up bar portion and each lower edge bar portion is staggered, the top for bar portion of each winding up
Point is overlapped with the lower edge bar portion center vertical line that three phases successively connect, and the vertex of each lower edge bar portion passes through the company of space brace 3
It is connected at the bar portion fixed point of winding up being located on the vertical line of center and forms three face gold word structure 4 of space, each space brace 3 is all located at sky
In alveolus, connection forms single antenna body structure.
Pass through multiple equidistant cross bar connections, multiple equidistant cross bars between the left space frame and right space frame
Completely cut off multiple rectangles being linearly arranged successively out, the upper chord plane 1 is the hexagon that each edge line is broken line.
It further include braced frame 7, the central lower of lower chord plane 2 is provided with the open area for accommodating braced frame 7, support frame
Frame 7 is arranged in open area and is fixedly connected with upper chord plane 1, and the braced frame 7 is trapezoidal.
As shown in Figures 5 to 7, it is located at antenna body back and is equipped with gate frame 5, gate frame 5 is by being symmetrically mirrored into
Left gate frame and right gate frame composition, left gate frame connect with right gate frame by ring flange, left gate frame
All pass through two V-type framves with right gate frame to be connected at the corresponding vertex of braced frame 7, it is solid along the middle line of braced frame 7
Surely there is the intermediate reinforcement support rod that bottom is connected to by upper bottom edge, the upper bottom edge and bottom of braced frame 7 are steel square tube,
Two sides waist edge is steel rectangular tube, and it is steel rectangular tube that support rod is reinforced in centre.
The braced frame 7 includes that left trunnion 7-1 and right trunnion 7-2, Zuo Zhier 7-1 and right trunnion 7-2 pass through flange
Disk is connected with the long bottom edge of braced frame 7；The braced frame 7 further includes pivot flange disk 7-3, pivot flange disk 7-3 with
Reinforce support rod prolongation among braced frame 7 to be connected.
The above is only highly preferred embodiment of the present invention, is not intended to limit the invention in any way, it is all according to the present invention
Technical spirit any simple modification, change and equivalent structure to the above embodiments change, and still fall within skill of the present invention
In the protection scope of art scheme.
Claims (8)
1. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame, it is characterised in that: including being mirrored into symmetrical left sky
A structure of an essay and right space frame, left space frame include for the connected upper chord plane (1) with antenna reflective face and for providing firm support
It is oppositely arranged before and after the lower chord plane (2) of structure, upper chord plane (1) and lower chord plane (2), is formed between upper chord plane (1) and lower chord plane (2)
Equidistant cavity zone；
Upper chord plane (1) includes that multiple groups are winded up bar portion, and every group of bar portion of winding up is end to end at closed triangle by three top booms, respectively
A top boom, which connects, is arranged into the curved-surface structure with reflection trench, and each top boom group intersects public with adjacent top boom group
Side shares a top boom, forms the net surface structure with multiple triangle dead zones by multiple top boom groups；
Lower chord plane (2) includes multiple groups lower edge bar portion, and every group of lower edge bar portion is end to end at closed triangle by three lower booms, respectively
A lower boom, which connects, is arranged into the curved-surface structure with reflection trench, and each lower boom group intersects public with adjacent lower boom group
Side shares a top boom, forms the net surface structure with multiple triangle dead zones by multiple lower boom groups；
Each center for winding up bar portion and each lower edge bar portion is staggered, and the vertex for bar portion of each winding up successively connects with three phases
Lower edge bar portion center vertical line is overlapped, and the vertex of each lower edge bar portion passes through space brace (3) and is connected on the vertical line of center
Bar portion fixed point of winding up at form three face gold word structure of space, each space brace (3) is all located in cavity zone；
Pass through multiple equidistant cross bar connections, multiple equidistant cross bar isolations between the left space frame and right space frame
Multiple rectangles being linearly arranged successively out.
2. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 1, it is characterised in that: institute
The upper chord plane (1) stated is the hexagon that each edge line is broken line.
3. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 1, it is characterised in that: also
Including braced frame (7), the central lower of lower chord plane (2) is provided with the open area for accommodating braced frame (7), braced frame
(7) it is arranged in open area and is fixedly connected with upper chord plane (1).
4. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 1, it is characterised in that: institute
The braced frame (7) stated is trapezoidal.
5. high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 3, it is characterised in that: further include
Gate frame (5), gate frame (5) are made of the left gate frame being symmetrically mirrored into and right gate frame, left-hand door type frame
Frame is connect with right gate frame by ring flange, and left gate frame and right gate frame all pass through two V-type framves and be connected to support
At the corresponding vertex of frame (7).
6. high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 5, it is characterised in that: described
Top boom, lower boom, space brace (3), skew back bar (4) are all fastened to circle by end high-strength bolt collocation nut outstanding
On pipe conehead.
7. high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 1, it is characterised in that: along branch
The middle line of support frame frame (7) is fixed with the intermediate reinforcement support rod that bottom is connected to by upper bottom edge, the upper bottom edge of braced frame (7)
It is steel square tube with bottom, two sides waist edge is steel rectangular tube, and it is steel rectangular tube that support rod is reinforced in centre.
8. high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 1 or claim 7, it is characterised in that: institute
The braced frame (7) stated includes left trunnion (7-1) and right trunnion (7-2), and Zuo Zhier (7-1) and right trunnion (7-2) pass through flange
Disk is connected with braced frame (7) long bottom edge；The braced frame (7) further includes pivot flange disk (7-3), pivot flange disk
(7-3) is connected with reinforcement support rod prolongation among braced frame (7).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552047.3A CN109449604B (en) | 2018-12-18 | 2018-12-18 | High-precision hexagonal space double-layer reflecting surface antenna back frame |
| PCT/CN2019/122308 WO2020125384A1 (en) | 2018-12-18 | 2019-12-02 | High-precision hexagonal space double-layer reflective surface antenna back frame |
| ZA2021/05019A ZA202105019B (en) | 2018-12-18 | 2021-07-16 | High-precision hexagonal space double-layer reflector antenna backup structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552047.3A CN109449604B (en) | 2018-12-18 | 2018-12-18 | High-precision hexagonal space double-layer reflecting surface antenna back frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109449604A true CN109449604A (en) | 2019-03-08 |
| CN109449604B CN109449604B (en) | 2024-03-26 |
Family
ID=65559579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811552047.3A Active CN109449604B (en) | 2018-12-18 | 2018-12-18 | High-precision hexagonal space double-layer reflecting surface antenna back frame |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109449604B (en) |
| WO (1) | WO2020125384A1 (en) |
| ZA (1) | ZA202105019B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289477A (en) * | 2019-07-26 | 2019-09-27 | 中国电子科技集团公司第五十四研究所 | A kind of the antenna minor face backrest and manufacturing method of the single layer space structure that inside and outside number of edges is 1 to 2 |
| CN110289476A (en) * | 2019-07-26 | 2019-09-27 | 中国电子科技集团公司第五十四研究所 | The high precision position and posture of reflecting plane aerial panel continuously adjusts device and its manufacturing method |
| CN110289478A (en) * | 2019-07-26 | 2019-09-27 | 中国电子科技集团公司第五十四研究所 | A kind of double offset antenna minor face support arm and manufacturing method based on spatial mixing structure |
| CN110299599A (en) * | 2019-07-26 | 2019-10-01 | 中国电子科技集团公司第五十四研究所 | A kind of space structure weight-balancing device for reflector antenna |
| WO2020125384A1 (en) * | 2018-12-18 | 2020-06-25 | 中国电子科技集团公司第五十四研究所 | High-precision hexagonal space double-layer reflective surface antenna back frame |
| CN112436291A (en) * | 2020-10-30 | 2021-03-02 | 北京卫星制造厂有限公司 | High-precision fixed-surface antenna reflector composite material connecting structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097620A (en) * | 2021-03-29 | 2021-07-09 | 苏州五源寰宇科技有限公司 | Carrier rocket lithium ion battery pack with light weight design |
| CN114256604B (en) * | 2021-12-09 | 2024-04-16 | 上海宇航***工程研究所 | Parabolic cylinder antenna based on triangular prism foldable unit |
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| CN109449604B (en) * | 2018-12-18 | 2024-03-26 | 中国电子科技集团公司第五十四研究所 | High-precision hexagonal space double-layer reflecting surface antenna back frame |
-
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- 2018-12-18 CN CN201811552047.3A patent/CN109449604B/en active Active
-
2019
- 2019-12-02 WO PCT/CN2019/122308 patent/WO2020125384A1/en active Application Filing
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- 2021-07-16 ZA ZA2021/05019A patent/ZA202105019B/en unknown
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| CN109449604B (en) | 2024-03-26 |
| ZA202105019B (en) | 2022-07-27 |
| WO2020125384A1 (en) | 2020-06-25 |
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