CN-121247095-B - Two-dimensional unfolding solar wing and spacecraft

CN121247095BCN 121247095 BCN121247095 BCN 121247095BCN-121247095-B

Abstract

The invention relates to a two-dimensional unfolding solar wing and a spacecraft, wherein the two-dimensional unfolding solar wing comprises a first sailboard, a second sailboard and a third sailboard, the first sailboard is of a quadrilateral structure, a root hinge for hinging one side face of a star body and an inter-board triggering mechanism matched with a triggering rod on one side face of the star body are arranged on the first side face of the first sailboard, a first locking piece matched with the inter-board triggering mechanism for locking or unlocking is arranged on one side face of the second sailboard, a second locking piece matched with the inter-board triggering mechanism for locking or unlocking is arranged on one side face of the third sailboard, a second side edge and a third side edge of the first sailboard are respectively connected with two ends of the first side edge, the second side edge is hinged with one side edge of the second sailboard through the first inter-board hinge, the third side edge is hinged with one side edge of the third sailboard through the second inter-board hinge, and in a closed state, the second sailboard and the third sailboard are respectively folded on two side faces of the first sailboard through the inter-board hinge. The invention can reduce the difficulty of spacecraft attitude adjustment.

Inventors

LI QUANHE
GAO ENYU
KONG LINGBO
HUA WEI

Assignees

北京微纳星空科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20251013

Claims (9)

1. The two-dimensional unfolding solar wing is characterized by comprising a first sailboard, a second sailboard and a third sailboard, wherein the first sailboard is of a quadrilateral structure, a root hinge for hinging one side of a star body and an inter-board triggering mechanism matched with a triggering rod on one side of the star body are arranged on the first side of the first sailboard, a first locking piece matched with the inter-board triggering mechanism for locking or unlocking is arranged on one side of the second sailboard, a second locking piece matched with the inter-board triggering mechanism for locking or unlocking is arranged on one side of the third sailboard, the second side and the third side of the first sailboard are respectively connected with two ends of the first side, the second side and one side of the second sailboard are hinged through a first inter-board hinge, and the third side and one side of the third sailboard are hinged through a second inter-board hinge; In the folding state, the second sailboard is folded on one side surface of the first sailboard through a first inter-board hinge, the third sailboard is folded on the other side surface of the first sailboard through a second inter-board hinge, the inter-board triggering mechanism is respectively in locking fit with a first locking piece and a second locking piece, the first sailboard can be folded on one side surface of the star body through a root hinge; the inter-plate triggering mechanism comprises a locking rod, a first spring, a sliding block and a connecting cylinder, wherein one end of the connecting cylinder is of a closed structure, a first clamping block used for clamping a first sailboard is arranged at the other end of the connecting cylinder, the sliding block is slidably connected in the connecting cylinder, the locking rod stretches into the connecting cylinder from the closed end of the connecting cylinder and is fixedly connected with the sliding block, the first spring is arranged between the sliding block and the other end of the connecting cylinder, a first limiting hole and a second limiting hole which are oppositely arranged are formed in the side wall of the periphery of the connecting cylinder, the first locking piece comprises a first limiting rod and a second clamping block used for clamping a second sailboard, one end of the first limiting rod is connected with the second clamping block, the other end of the first limiting rod stretches into the first limiting hole in the radial direction of the connecting cylinder and can be clamped with the sliding block in an adapting mode, and the second locking piece comprises a second limiting rod and a third clamping block used for clamping a third sailboard, and a second clamping block used for clamping the third limiting rod and a third clamping block are arranged between the second limiting rod and the second limiting block in the radial direction of the connecting rod.
2. The two-dimensional unfolding solar wing according to claim 1, wherein the root hinge, the first plate hinge and the second plate hinge comprise a male hinge, a female hinge, a scroll spring and a rotating shaft, the male hinge and the female hinge are hinged through the rotating shaft, the scroll spring is sleeved on the rotating shaft, the inner end of the scroll spring is fixedly connected with the rotating shaft, the outer end of the scroll spring is connected with the male hinge, and in a folding state, the scroll springs on the root hinge, the first plate hinge and the second plate hinge are in an energy storage state.
3. The two-dimensional unfolding solar wing according to claim 2, wherein the root hinge, the first inter-plate hinge and the second inter-plate hinge further comprise a locking frame and a circular arc-shaped sliding rail, the circular arc-shaped sliding rail is fixed on a male hinge and is coaxially arranged with the rotary shaft, the locking frame is arranged on a female hinge through a torsion spring, the free end of the locking frame can be pressed and abutted on the circular arc-shaped sliding rail under the action of the torsion spring, and when the male hinge and the female hinge are relatively folded, the free end of the locking frame is abutted on the position, close to one end, of the circular arc-shaped sliding rail; And the male hinge is also provided with a limiting groove, the limiting groove is positioned at the other end of the circular arc-shaped sliding rail, and when the male hinge and the female hinge are relatively unfolded to a set position, the free end of the locking frame moves along the circular arc-shaped sliding rail and is clamped into the limiting groove.
4. The solar wing with two-dimensional expansion according to claim 3, wherein one end of the locking frame is hinged on the female hinge through a rotating shaft, a torsion spring is sleeved on the rotating shaft, and a roller capable of rolling along the circular arc-shaped sliding rail is arranged at the free end of the locking frame; And a feeler lever coaxially arranged with the rolling shaft is further arranged at one side of the free end of the locking frame, a travel switch is fixed on the male hinge, and when the male hinge and the female hinge are relatively unfolded to a set position, the feeler lever presses a button of the travel switch and indicates in place.
5. The two-dimensional unfolded solar wing according to claim 2, wherein the free end of the female hinge is provided with a first U-shaped clamping piece, the free end of the male hinge is provided with a second U-shaped clamping piece, the clamping groove of the first U-shaped clamping piece faces to one side away from the rotating shaft and is arranged in parallel with the rotating shaft, and the clamping groove of the second U-shaped clamping piece faces to one side away from the rotating shaft and is arranged in parallel with the rotating shaft.
6. The two-dimensional unfolded solar wing according to claim 2, wherein the first U-shaped clamping piece of the root hinge is internally clamped with an L-shaped mounting plate, the L-shaped mounting plate comprises two plate bodies which are vertically and fixedly connected, one plate body is clamped and fixed in the first U-shaped clamping piece of the root hinge, and the other plate body is arranged in parallel with the rotating shaft of the root hinge and is used for being fixedly connected to a star body.
7. The two-dimensional unfolding solar wing according to claim 2, wherein a first connecting piece is fixed on a rotating shaft of the first inter-plate hinge, a second connecting piece is fixed on a rotating shaft of the second inter-plate hinge, the first connecting piece and the second connecting piece are correspondingly arranged along a direction perpendicular to the rotating shaft of the second inter-plate hinge, a rope body is arranged between the first connecting piece and the second connecting piece, the female hinge is fixedly connected with the rotating shaft, and the male hinge is rotatably connected with the rotating shaft.
8. The two-dimensional unfolded solar wing according to claim 1, wherein the first clamping block is provided with a second clamping groove for clamping a second sailboard, the second clamping groove faces to one side away from the first limiting rod and is perpendicular to the first limiting rod, the second clamping block is provided with a third clamping groove for clamping a third sailboard, and the third clamping groove faces to one side away from the second limiting rod and is perpendicular to the second limiting rod.
9. A spacecraft is characterized by comprising a two-dimensional unfolded solar wing according to any one of claims 1 to 8, and further comprising a star body, wherein one side surface of the star body is hinged with a first side edge of the first sailboard through a root hinge, a trigger rod matched with the trigger mechanism between boards is further arranged on one side surface of the star body, a locking and releasing mechanism is further arranged on one side surface of the star body, a locking and connecting rod is vertically fixed on one side surface, close to the first sailboard, of the second sailboard, through holes for the locking and connecting rods to pass through are formed in the first sailboard and the third sailboard, and when the star body is in a folded state, the locking and connecting rods pass through the through holes in the first sailboard and the third sailboard and are locked by the locking and releasing mechanism.

Description

Two-dimensional unfolding solar wing and spacecraft Technical Field The invention relates to the technical field of aerospace, in particular to a two-dimensional unfolding solar wing and a spacecraft. Background The solar wing is used as an indispensable part of the spacecraft and mainly provides electric energy supply for the spacecraft, and is in a folded state before the spacecraft is launched due to the large size of the solar wing, and is unfolded after the spacecraft enters the orbit. The common unfolding form of the solar wing is that the solar wing is unfolded along one side, the solar wing is unfolded in a Z shape, each sailboard is unfolded on one plane, the unfolded area of the spacecraft with larger power consumption is larger, the solar wing is further away from the star after being unfolded, the moment of inertia of the sailboard is larger, and certain difficulty is brought to the overall posture adjustment of the spacecraft. Disclosure of Invention The invention provides a two-dimensional unfolding solar wing and a spacecraft for solving one or more of the technical problems in the prior art. The invention provides a two-dimensional unfolding solar wing which comprises a first sailboard, a second sailboard and a third sailboard, wherein the first sailboard is of a quadrilateral structure, a root hinge for hinging one side of an asterisk and an inter-board triggering mechanism matched with a triggering rod on one side of the asterisk are arranged on the first side of the first sailboard, a first locking piece matched with the inter-board triggering mechanism for locking or unlocking is arranged on one side of the second sailboard, a second locking piece matched with the inter-board triggering mechanism for locking or unlocking is arranged on one side of the third sailboard, the second side and the third side of the first sailboard are respectively connected with two ends of the first side, one side of the second sailboard is hinged with one side of the second sailboard through a first inter-board hinge, and one side of the third side of the second sailboard is hinged with one side of the third board through a second inter-board hinge; When in a folding state, the second sailboard is folded on one side surface of the first sailboard through a first inter-board hinge, the third sailboard is folded on the other side surface of the first sailboard through a second inter-board hinge, the inter-board triggering mechanism is respectively in locking fit with the first locking piece and the second locking piece, the first sailboard can be folded on one side surface of the star body through a root hinge, when in an unfolding state, the first sailboard is unfolded through the root hinge and triggers the inter-board triggering mechanism, and the inter-board triggering mechanism releases the locking of the first locking piece and the second locking piece, so that the second sailboard is unfolded under the action of the first inter-board hinge, and the third sailboard is unfolded under the action of the second inter-board hinge. The two-dimensional unfolding solar wing has the advantages that all the sailboards are unfolded simultaneously under the action of the root hinge after unlocking, after unfolding is close to the locking angle of the root hinge, the trigger mechanism between the boards is triggered and contacts with the restraint on other sailboards, the other sailboards are unfolded and locked under the action of the hinge between the boards, the whole solar wing is positioned on one side of the star, the first sailboard is positioned on one side of the star, the second sailboard and the third sailboard are positioned on two sides of the first sailboard, and the two-dimensional unfolding solar wing can greatly reduce the moment of inertia of a spacecraft, so that the difficulty in posture adjustment of the spacecraft is reduced. On the basis of the technical scheme, the invention can be improved as follows. Further, the root hinge, the first plate hinge and the second plate hinge comprise a male hinge, a female hinge, a scroll spring and a rotary shaft, the male hinge and the female hinge are hinged through the rotary shaft, the scroll spring is sleeved on the rotary shaft, the inner end of the scroll spring is fixedly connected with the rotary shaft, the outer end of the scroll spring is connected with the male hinge, and in a folding state, the scroll springs on the root hinge, the first plate hinge and the second plate hinge are all in an energy storage state. The further scheme has the beneficial effects that the male hinge, the female hinge, the scroll spring and the rotating shaft are arranged, and the male hinge and the female hinge can be opened in the energy storage state of the scroll spring, so that the sailboard is opened. The root hinge, the first plate hinge and the second plate hinge further comprise a locking frame and a circular arc-shaped sliding rail, the circular arc-shaped slid