CN218351704U - Radar satellite phased array antenna rotates and expandes device - Google Patents
Radar satellite phased array antenna rotates and expandes device Download PDFInfo
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- CN218351704U CN218351704U CN202222504939.4U CN202222504939U CN218351704U CN 218351704 U CN218351704 U CN 218351704U CN 202222504939 U CN202222504939 U CN 202222504939U CN 218351704 U CN218351704 U CN 218351704U
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- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
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Abstract
The utility model relates to a satellite-borne synthetic aperture radar technical field specifically is a radar satellite phased array antenna rotates expandes device, including the celestial body, elasticity even board, phased array antenna and rotary driving device, elasticity even board symmetry is installed in the both sides bottom of celestial body, and both sides face of celestial body and lie in elasticity even board top and all be equipped with square groove, the outside both sides face symmetry of celestial body is equipped with phased array antenna, and the bottom activity of phased array antenna is spacing on elasticity even board, and phased array antenna comprises mainboard, subplate, elastic connection board, stopper two and spacing square bar, and mainboard and subplate are mutually perpendicular, are connected through the elastic connection board between mainboard and the subplate, and the mainboard is kept away from elastic connection board side surface and is equipped with a plurality of spacing square bars, and the inside rotary driving device that can reciprocate that is equipped with of square groove; the utility model discloses a rotation of phased array antenna for half-surround the phased array antenna word that is in the star side and expand, can reduce the area of envelopment of star.
Description
Technical Field
The utility model relates to a satellite-borne synthetic aperture radar technical field, concretely relates to radar satellite phased array antenna rotates and expandes device.
Background
The satellite-borne Synthetic Aperture Radar (SAR) can acquire high-resolution images of ground targets all day long and all weather, and is widely applied to agriculture, military, meteorological monitoring and other aspects at present, a synthetic aperture radar antenna is a main part of an SAR satellite and is also the largest part in volume in an SAR system, the existing synthetic aperture radar satellite for commercial use needs to be miniaturized in order to reduce emission cost, and for the satellite-borne synthetic aperture radar satellite, the folding volume size of the antenna plays a great role in the miniaturization of the radar satellite, when the existing satellite folds a phased array antenna, because the height of the satellite is limited, in order to ensure the length of the phased array antenna, only one side of the phased array antenna can be repeatedly folded on one surface of the satellite, and the peripheral envelope area of the satellite is greatly increased in the folding mode, so that the emission cost of the satellite is increased.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model discloses a make in view of above problem, the utility model discloses an aim at utilizes rotary drive device drive phased array antenna to rotate through setting up rotatable phased array antenna for half two phased array antennas of surrounding to the side of the star are a word and expand, and it is great to solve the area of envelope that exists among the prior art, the higher problem of the cost of transmission of satellite, the utility model discloses a through following technical scheme realize above-mentioned purpose:
the utility model provides a radar satellite phased array antenna rotates expandes device, includes the star, elasticity even board, phased array antenna and rotary driving device, elasticity even board symmetry is installed in the both sides bottom of star, and the both sides face of star just is located elasticity even board top and all is equipped with square notch, star outside both sides face symmetry is equipped with phased array antenna, and the bottom activity of phased array antenna is spacing on elasticity even board, and phased array antenna comprises mainboard, subplate, elastic connection board, stopper two and spacing square, and mainboard and subplate mutually perpendicular are connected through the elastic connection board between mainboard and the subplate, and the mainboard keeps away from elastic connection board side surface and is equipped with a plurality of spacing square, and square notch is inside to be equipped with the rotary driving device that can reciprocate, and rotary driving device comprises movable block, drive column axle, clockwork spring and spacing shell fragment, and the movable block is inside to be equipped with circular notch, and circular notch is rotatable to be installed with the drive column axle in the notch, and rotatable spacing in the inside at circular notch of drive column axle one end, and the other end are fixed at the internal surface of mainboard through the connector that meets high temperature and melt, are fixed with circular inner wall, and the clockwork spring leaf, and the movable block bottom is equipped with spacing shell fragment.
Preferably, the elasticity even board comprises fixed shell fragment, connector and stopper one, and fixed shell fragment is the elasticity material, and the one end of fixed shell fragment is fixed in bottom one side of the star, and the other end of fixed shell fragment is equipped with the connector, and the spacing groove that runs through around the top of connector is equipped with, and the mainboard bottom is located the spacing inslot, and the both sides surface that the connector does not run through all is equipped with the fixed slot with spacing groove parallel arrangement.
Preferably, the outer contour of the star body is square, the bottom ends of two side faces of the star body are respectively provided with a containing groove, and the square notch is arranged below the containing groove and on the same plane of the containing groove.
Preferably, the limiting elastic sheet is a C-shaped elastic sheet, one end of the limiting elastic sheet is fixed to the top of the moving block, and the other end of the limiting elastic sheet abuts against the top of the square notch.
Preferably, the joints of the elastic connecting plate and the main plate and the auxiliary plate are provided with a plurality of groups of second limiting blocks.
Preferably, the limiting square strip is a compressible elastic strip.
Preferably, one side of the joint of the fixed elastic sheet and the connector and the bottom of the fixed elastic sheet are correspondingly provided with a plurality of groups of first limit blocks, and the first limit blocks on the two sides can be mutually abutted when the connector is unfolded.
The utility model discloses beneficial effect:
1. through setting up rotatable phased array antenna, two rotatable phased array antennas encircle around the star with the form of half encirclement during folding, through phased array antenna's rotation during the expansion for half encirclement is a word and expandes at two phased array antennas of star side, and the envelope area of reduction star that such folding and expansion mode can be great reduces satellite launch cost.
Drawings
Fig. 1 is a schematic view of the launching status of the present invention.
Fig. 2 is an exploded view of the structure of the present invention.
Fig. 3 is a schematic structural view of the middle elastic connecting plate of the present invention in a folded state.
Fig. 4 is a structural schematic diagram of the middle elastic connecting plate in an expanded state.
Fig. 5 is a schematic structural diagram of the middle rotation driving device of the present invention.
Fig. 6 is a schematic view of a first expanded state of the present invention.
Fig. 7 is a schematic view of the fully expanded state of the present invention.
Description of reference numerals:
100. a star body; 110. a storage groove; 120. a square notch; 200. an elastic connecting plate; 210. fixing the elastic sheet; 220. a connector; 221. a limiting groove; 222. fixing grooves; 230. a first limiting block; 300. a phased array antenna; 310. a main board; 320. a sub-board; 330. an elastic connecting plate; 340. a second limiting block; 350. limiting square bars; 400. a rotation driving device; 410. a moving block; 411. a circular notch; 420. a drive column shaft; 430. a clockwork spring; 440. spacing shell fragment.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, however, the present invention can be implemented in various forms, and therefore, the present invention is not limited to the embodiments described hereinafter, and in addition, in order to describe the present invention more clearly, components which are not connected to the present invention will be omitted from the drawings;
as shown in fig. 1 and 2, a phased array antenna rotary deployment device for a radar satellite comprises: a star body 100, an elastic connecting plate 200, a phased array antenna 300 and a rotary driving device 400;
the outer contour of the star body 100 is square, two side surfaces of the star body 100 are respectively provided with a receiving groove 110 near the bottom end, and a square notch 120 is arranged above the receiving groove 110 and on the same plane with the receiving groove 110;
as shown in fig. 2 to 4, the number of the elastic connection plates 200 is two, the two elastic connection plates 200 are symmetrically installed in the receiving grooves 110 at the bottom of the star 100, each elastic connection plate 200 is composed of three parts, i.e., a fixed elastic sheet 210, a connector 220 and a first stopper 230, wherein the fixed elastic sheet 210 is made of elastic material and can be bent under force, the other end of the fixed elastic sheet 210 is provided with the connector 220, the connector 220 is made of rigid material, the top end of the connector 220 is provided with a front and rear penetrating stopper groove 221, the two side surfaces of the connector 220, which do not penetrate through, are provided with penetrating fixing grooves 222 parallel to the stopper grooves 221, one side of the joint between the fixed elastic sheet 210 and the connector 220 and the bottom of the fixed elastic sheet 210 are provided with a plurality of first stoppers 230 corresponding to each other, and the stoppers 230 at the two sides can abut against each other when the connector 220 is unfolded, the elastic connection plates 200 can be fixed at the bottom of the star 100 by the fixed elastic sheet 210, when the elastic connection plates 200 are in a folded state, the joint between the fixed elastic connection sheet 210 and the connector 220 can be bent, then the elastic connection plate 220 is embedded in the receiving grooves 110 at one side surface of the star 100 near one side surface, so that the end of the fixed elastic sheet 210 and the connector 220 can abut against the connector 220, and the connector 220, when the elastic connection plate is turned over, the elastic connection plate 210, the elastic connection plate 220, and the elastic connection plate 210 is turned over, and the elastic connection plate 220, and the elastic connection plates 220 is turned over, and the elastic connection plates 220 can be turned over, and the elastic connection plates 220 can be fixed elastic connection plates 220 can be turned over;
as shown in fig. 2, the number of the phased array antennas 300 is two, the two phased array antennas 300 are respectively symmetrically installed on the elastic connecting plate 200 at two sides of the star 100, each phased array antenna 300 is composed of a main plate 310, a sub-plate 320, an elastic connecting plate 330, two limiting blocks 340 and a limiting square bar 350, wherein the main plate 310 and the sub-plate 320 are both made of plate-shaped materials, the main plate 310 and the sub-plate 320 can be fixedly connected through the elastic connecting plate 330, a plurality of sets of two limiting blocks 340 are further arranged at the connection positions of the elastic connecting plate 330 and the main plate 310 and the sub-plate 320, the number of the limiting square bars 350 is multiple, the limiting square bars are installed on the surface of one side of the main plate 310 away from the elastic connecting plate 330, the limiting square bars 350 are compressible elastic bars, when the phased array antennas 300 are in a folded state, the main plate 310 and the sub-plate 320 are perpendicular to each other, the whole phased array antenna 300 is installed in the limiting groove 221 on the elastic connecting plate 200 through the bottom side of the main plate 310, the sub-plate 320 is installed on the surface of the star 100, and the two phased array antennas 300 surround the outer side of the star 100 through the main plate 310 and the sub-plate 320;
as shown in fig. 2 and 5, the number of the rotary driving devices 400 is two, the rotary driving devices 400 are respectively movably installed in each square notch 120, each rotary driving device 400 is composed of a moving block 410, a driving column shaft 420, a clockwork spring 430 and a limiting elastic sheet 440, wherein the moving block 410 is of a square block structure, a circular notch 411 is formed in the moving block 410, the driving column shaft 420 is further rotatably installed in the circular notch 411, one end of the driving column shaft 420 is rotatably limited in the circular notch 411, the other end of the driving column shaft is fixedly connected to the inner surface of the main board 310 through a bonding agent which melts when exposed to high temperature, the clockwork spring 430 is further fixedly installed between the driving column shaft 420 and the inner wall of the moving block 410, one end of the clockwork spring 430 is fixed to the inner wall of the circular notch 411, the other end of the clockwork spring is connected to the bottom end of the driving column shaft 420, when the driving column shaft 420 rotates, the bottom end of the driving column shaft 420 can strain the clockwork spring 430, the limiting elastic sheet 440 is further arranged at the top end of the moving block 410, the limiting elastic sheet is a C-shaped moving block, one end of the limiting elastic sheet 440 is fixedly connected to the top of the moving block 410, and the top of the moving block 410 can bend and deform the limiting elastic sheet 410.
The utility model discloses the theory of operation:
when a satellite is launched, a housing is arranged outside the star 100, the elastic connecting plate 200 and the phased array antenna 300 are in a folded state, the two phased array antennas 300 are symmetrically stacked on two sides of the star 100, the rotary driving device 400 is located at the bottommost end of the square notch 120, and the spring 430 in the rotary driving device 400 is in a compressed state, the satellite is launched, as shown in fig. 1, when the satellite is launched to a predetermined orbit to be deployed, the housing on the outer side is disengaged, the phased array antenna 300 is disengaged from the limit on the outer side of the star 100, then the secondary plate 320 on the phased array antenna 300 is turned outwards under the elastic force of the elastic connecting plate 330 until the two limit blocks 340 at two ends of the elastic connecting plate 330 abut against each other, the secondary plate 320 stops turning, the main plate 310 and the secondary plate 320 are in a parallel state, during the turning of the secondary plate 320, because the secondary plate 320 is gradually disengaged from the side end surface of the star 100, the main plate 310 is gradually released from the rotation limit, therefore, the spring 430 on the rotary driving device 400 gradually drives the main plate 310 to gradually rotate through the driving column shaft 420, and the main plate 310 rotates to the square notch 310, and the elastic limiting moving block 410 moves to the elastic limiting block 200 along with the square notch 310, and the elastic connecting groove 221 on the main plate 310, when the main plate 310 moves to the square notch 200 and the elastic limiting block 410 moves to the square notch 200, the square notch 310, the elastic limiting block 410, the elastic block 310 moves to move to the elastic limiting groove 310, and the elastic limiting block 410, the main board 310 stops rotating, at this time, the whole satellite completes the first unfolding state, the first unfolding state is shown in fig. 6, then the driving column shaft 420 in the rotary driving device 400 is heated, after the connecting agent at the joint of the driving column shaft 420 and the main board 310 is heated and disconnected, the main board 310 is separated from the fixing of the driving column shaft 420, the whole phased array antenna 300 starts to turn over under the elastic action of the fixing elastic sheet 210 on the elastic connecting plate 200, after each group of the first limit blocks 230 at the joint of the fixing elastic sheet 210 and the connecting head 220 are mutually abutted, the elastic connecting plate 200 completely unfolds with the phased array antenna 300, and the completely unfolding state is shown in fig. 7.
Claims (7)
1. The utility model provides a radar satellite phased array antenna rotates expandes device, includes the celestial body (100), elasticity even board (200), phased array antenna (300) and rotary drive device (400), and elasticity even board (200) symmetry is installed in the both sides bottom of celestial body (100), and the both sides face of celestial body (100) just is located elasticity even board (200) top and all is equipped with square notch (120), its characterized in that: the phased array antenna (300) is symmetrically arranged on two outer side surfaces of the star body (100), the bottom of the phased array antenna (300) is movably limited on the elastic connecting plate (200), the phased array antenna (300) is composed of a main plate (310), an auxiliary plate (320), an elastic connecting plate (330), two limiting blocks (340) and limiting square bars (350), the main plate (310) is perpendicular to the auxiliary plate (320), the main plate (310) is connected with the auxiliary plate (320) through the elastic connecting plate (330), a plurality of limiting square bars (350) are arranged on the surface of one side, away from the elastic connecting plate (330), of the main plate (310), a rotary driving device (400) capable of moving up and down is arranged inside the square notch (120), the rotary driving device (400) is composed of a moving block (410), a driving column shaft (420), a limiting spring leaf (430) and a limiting spring leaf (440), a circular notch (411) is arranged inside the moving block (410), the driving column shaft (420) is rotatably arranged inside the circular notch (411), one end of the driving column shaft (420) is rotatably limited inside the circular notch (411), the other end of the driving column shaft is fixed between the inner surface of the main plate (310) and the inner wall (411) through a high-temperature connecting agent (420), and the inner wall (430) fixed between the inner wall of the moving block (410), the other end is inserted with the bottom end of the driving column shaft (420), and the top end of the moving block (410) is provided with a limiting elastic sheet (440).
2. The phased array antenna for radar satellites of claim 1, wherein the phased array antenna for radar satellites comprises: elasticity even board (200) is by fixed shell fragment (210), connector (220) and stopper (230) are constituteed, fixed shell fragment (210) are the elastic material, the bottom one side at star (100) is fixed to the one end of fixed shell fragment (210), the other end of fixed shell fragment (210) is equipped with connector (220), spacing groove (221) that run through around the top of connector (220) is equipped with, mainboard (310) bottom is located spacing groove (221), the both sides surface that connector (220) do not run through all is equipped with fixed slot (222) with spacing groove (221) parallel arrangement.
3. The phased array antenna for radar satellites of claim 1, wherein the phased array antenna for radar satellites comprises: the outer contour of the star body (100) is square, the bottom ends of two side faces of the star body (100) are respectively provided with a containing groove (110), and the square notch (120) is formed in the same plane of the lower portion of the containing groove (110) and the containing groove (110).
4. The phased array antenna for radar satellites of claim 1, wherein the phased array antenna for radar satellites comprises: the limiting elastic sheet (440) is a C-shaped elastic sheet, one end of the limiting elastic sheet (440) is fixed with the top of the moving block (410), and the other end of the limiting elastic sheet abuts against the top of the square notch (120).
5. The phased array antenna for radar satellites of claim 1, wherein the phased array antenna for radar satellites comprises: and a plurality of groups of second limiting blocks (340) are arranged at the joints of the elastic connecting plate (330) and the main plate (310) and the auxiliary plate (320).
6. The phased array antenna for radar satellites of claim 1, wherein the phased array antenna for radar satellites comprises: the limiting square strip (350) is a compressible elastic strip.
7. The phased array antenna for radar satellites of claim 2, wherein the phased array antenna for radar satellites comprises: one side of the joint of the fixing elastic sheet (210) and the connector (220) and the bottom of the fixing elastic sheet (210) are correspondingly provided with a plurality of groups of limiting blocks I (230), and the limiting blocks I (230) on the two sides can be mutually abutted when the connector (220) is unfolded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222504939.4U CN218351704U (en) | 2022-09-22 | 2022-09-22 | Radar satellite phased array antenna rotates and expandes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222504939.4U CN218351704U (en) | 2022-09-22 | 2022-09-22 | Radar satellite phased array antenna rotates and expandes device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218351704U true CN218351704U (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222504939.4U Active CN218351704U (en) | 2022-09-22 | 2022-09-22 | Radar satellite phased array antenna rotates and expandes device |
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| Country | Link |
|---|---|
| CN (1) | CN218351704U (en) |
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- 2022-09-22 CN CN202222504939.4U patent/CN218351704U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231222 Address after: 615000, 6th floor, Building 3, Nantan Resettlement Community, No. 99 Hedong Avenue, Xichang City, Liangshan Yi Autonomous Prefecture, Sichuan Province Patentee after: Xichang Satellite Technology Co.,Ltd. Address before: 518000 room 116, building 7, spark online project, No.2, Wuhe South Road, Bantian street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Magic Cube Satellite Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |