CN-224217695-U - Satellite antenna compressing and expanding device without separate locking and releasing mechanism

Abstract

The utility model relates to a compressing and expanding device of a satellite antenna without a separate locking and releasing mechanism. The solar panel comprises a satellite body, a flexible antenna is arranged on the side face of the solar panel, when the solar panel is in a locking state, the flexible antenna is bent between the satellite body and the solar panel and is in a compressed state, when the solar panel is unfolded, the flexible antenna is converted into a natural state from the compressed state after being unfolded, the flexible antenna is unfolded smoothly, and an additional locking and releasing mechanism is not needed in the whole process, so that the manufacturing and maintenance cost is reduced, and the risk of task failure caused by the failure of a complex mechanism is reduced.

Inventors

• XIANG JUNHUA
• YI LUE
• DONG YU

Assignees

• 湖南航升卫星科技有限公司

Dates

Publication Date

20260508

Application Date

20250514

Claims (10)

1. 1. The compaction and unfolding device of the satellite antenna without an independent locking and releasing mechanism is characterized in that a flexible antenna is arranged on a satellite body towards the side face of a solar sailboard; When the solar sailboard is in a locking state, the flexible antenna is bent and arranged between the satellite body and the solar sailboard and is in a compression state; When the solar sailboard is unfolded, the flexible antenna is unfolded in a following mode, and the flexible antenna is converted into a natural state from a compressed state.
2. 2. The device according to claim 1, wherein a pad is provided on the satellite body in a position corresponding to the flexible antenna.
3. 3. The device of claim 2, wherein the pad has a cross-sectional shape that matches the cross-sectional shape of the flexible antenna.
4. 4. The device of claim 3, wherein the backing plate is made of light metal, and the surface of the light metal is coated with a flexible material.
5. 5. A non-separate lock release as claimed in claim 3 the compressing and expanding device of the satellite antenna of the mechanism, the cushion plate is characterized in that the cushion plate is made of flexible materials.
6. 6. The device according to claim 4 or 5, wherein a batten is further provided on the solar panel in correspondence with the flexible antenna.
7. 7. The device of claim 6, wherein the cross-sectional shape of the bead is adapted to the cross-sectional shape of the flexible antenna.
8. 8. The device according to claim 6, wherein the two sides of the pad are provided with receiving grooves, the middle is provided with a bump, and the cross-sectional shape of the pressing bar is adapted to the cross-sectional shape of the bump.
9. 9. The device of claim 7 or 8, wherein the bead is made of light metal, and the surface of the light metal is coated with a flexible material.
10. 10. The method according to claim 7 or 8, wherein no separate locking is required the compressing and expanding device of the satellite antenna of the releasing mechanism, the molding is characterized in that the pressing strip is made of flexible materials.

Description

Satellite antenna compressing and expanding device without separate locking and releasing mechanism Technical Field The utility model relates to the technical field of space satellite antennas, in particular to a compressing and expanding device of a satellite antenna without an independent locking and releasing mechanism. Background After the satellite is separated from the rocket, part of the antenna on the satellite needs to be unfolded to work, such as a tape measure antenna, a flexible linear antenna and the like. The conventional practice is to roll up the antenna before launching, fix the antenna by matching with a locking release mechanism, and release and unwind the antenna after the satellite is separated from the rocket by receiving a preset instruction and then unlocking the locking release mechanism. However, the cost of the antenna itself is low, such as a tape antenna, which is a tape measure on the common market cut into sections for use, and adapting a locking release mechanism increases a certain cost, and the antenna needs to receive a characteristic instruction to unlock, which also has a risk of unsuccessful unlocking. Disclosure of utility model Accordingly, there is a need for a device for compressing and expanding a satellite antenna that does not require a separate lock release mechanism, and that does not require a lock release mechanism, and that can smoothly unlock the antenna. A compressing and expanding device of a satellite antenna without an independent locking and releasing mechanism is characterized in that a flexible antenna is arranged on a satellite body towards the side face of a solar panel, when the solar panel is in a locking state, the flexible antenna is bent between the satellite body and the solar panel and is in a compressing state, and when the solar panel is expanded, the flexible antenna is unfolded in a following mode and is converted into a natural state from the compressing state. In one embodiment, a pad is further disposed on the satellite body at a position corresponding to the flexible antenna. In one embodiment, the cross-sectional shape of the pad is adapted to the cross-sectional shape of the flexible antenna. In one embodiment, the pad is made of light metal, and the surface of the light metal is paved with a flexible material. In one embodiment, the pad is made of flexible material. In one embodiment, a batten is further arranged on the solar sailboard and corresponds to the flexible antenna. In one embodiment, the cross-sectional shape of the bead is adapted to the cross-sectional shape of the flexible antenna. In one embodiment, a bump is disposed at the center of the pad, and the cross-sectional shape of the bead is adapted to the cross-sectional shape of the bump. In one embodiment, the batten is made of light metal, and a flexible material is paved on the surface of the light metal. In one embodiment, the batten is made of flexible materials. Compared with the prior art, the compressing and expanding device of the satellite antenna without the independent locking and releasing mechanism has the following effects: 1. When the satellite is separated, the solar sailboard is unfolded, the flexible antenna is unfolded in a following way, the flexible antenna is converted into a natural state from the compact state, the antenna is unlocked smoothly, an additional locking and releasing mechanism is not needed, the number and complexity of parts on the satellite are reduced, the manufacturing and maintenance cost is reduced, and the risk of task failure caused by the failure of a complex mechanism is reduced. Meanwhile, extra control links and operation steps are reduced, and the overall operation efficiency and reliability of the satellite system are improved. 2. The space between the satellite body and the solar sailboard is effectively utilized, so that the layout of the satellite is more compact, and the space utilization rate is improved. 3. Because a separate locking and releasing mechanism is not needed to control the compaction and the unfolding of the antenna, the driving energy consumption of related mechanisms is reduced, and the satellite can more efficiently complete tasks under the condition of limited energy. 4. In the satellite launching and other processes, the solar sailboard is in a locking state, and the flexible antenna is pressed between the satellite body and the solar sailboard, so that the satellite is well protected, the antenna is prevented from being interfered and damaged by the external environment, and the service life and the working performance of the antenna are improved. Drawings In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the prese