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Rotatable wedge-shaped sunshade capable of being unfolded segmentally

A sunshade and wedge-shaped technology, applied in the field of sunshades, can solve the problems of unfavorable space camera launch requirements, natural frequency drop, camera volume increase, etc., and achieve the effect of easy shape, small storage ratio, and high structural rigidity

Inactive Publication Date: 2013-10-02
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a longer hood usually brings about the problems of increased camera volume, increased weight, and decreased natural frequency, which is very unfavorable for space cameras to meet launch requirements

Method used

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  • Rotatable wedge-shaped sunshade capable of being unfolded segmentally
  • Rotatable wedge-shaped sunshade capable of being unfolded segmentally
  • Rotatable wedge-shaped sunshade capable of being unfolded segmentally

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Such as figure 1 , figure 2 , image 3 As shown, the shading cover of the present invention mainly includes a cylindrical part shading cover wall 1 and an oblique part shading cover wall 2, a base 3, a cylindrical part linear hinge assembly 4, an oblique part linear hinge assembly 5, a fixed chassis 6, Rotary chassis 7, block pulley 8 and motor drive unit 9.

[0022] Wherein, the linear hinge assembly 4 of the cylindrical part is fixed on the inner side of the shading cover wall 1 of the cylindrical part as a supporting structure and drives the shading cover wall 1 of the cylindrical part to expand and contract; the linear hinge assembly 5 of the bevel part is fixed on the shading cover of the bevel part The inner side of the cover wall 2 is used as a support structure and drives the cover wall 2 of the oblique part of the shading cover to expand and contract; one end of the linear hinge assembly 4 of the cylindrical part is fixed on the base 3, and the other end of ...

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Abstract

A rotatable wedge-shaped sunshade capable of being unfolded segmentally comprises a cylinder part sunshade wall (1), an oblique angle part sunshade wall (2), a base (3), cylinder part linear hinge components (4), oblique angle part linear hinge components (5), a fixed chassis (6), a rotary chassis (7) and a driving component. The cylinder part linear hinge components (4) serve as a support frame of the cylinder part sunshade wall (1); the oblique angle part linear hinge components (5) serve as a support frame of the oblique angle part sunshade wall (2), and the extension of the corresponding sunshade walls are driven by extension of the corresponding support frames. The two ends of the cylinder part linear hinge components (4) are connected with the base (3) and the fixed chassis (6) respectively, and the two ends of the oblique angle part linear hinge components (5) are connected with the rotary chassis (7) and the oblique angle part sunshade wall (2) respectively. The rotary chassis (7) is mounted on the fixed chassis (6) by the driving component, and driven by the driving component to rotate relative to the fixed chassis (6).

Description

technical field [0001] The invention relates to a light shield suitable for a high-resolution large-diameter space remote sensor. Background technique [0002] In space remote sensors, in order to suppress the influence of stray light, it is usually necessary to set a light shield at the front end of the optical lens, and this light shield is usually a cone of the overall structure. In order to minimize the influence of stray light, it is necessary to increase the length of the hood as much as possible. However, a longer hood usually brings about the problems of increased camera volume, increased weight, and decreased natural frequency, which is very unfavorable for space cameras to meet launch requirements. Contents of the invention [0003] The technical problem of the present invention is: to overcome the deficiencies of the prior art, to provide a segmented expandable and rotatable wedge-shaped shading cover, through which the segmented expandable and oblique part rot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B11/04
Inventor 吕红
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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