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A satellite camera thermal protection door system with active temperature control

A satellite camera and thermal protection technology, applied in the control/adjustment system, camera, camera body, etc., can solve the problems of rapid heat flow changes outside space, long thermal stability time, camera heat leakage, etc., to reduce camera heat leakage , Small size, avoid thermal deformation effect

Active Publication Date: 2015-09-23
AEROSPACE DONGFANGHONG SATELLITE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the attitude of remote sensing satellites is frequently maneuvered, the heat flow outside the space changes rapidly, the thermal stabilization time required for imaging is long, and the camera has serious heat leakage

Method used

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  • A satellite camera thermal protection door system with active temperature control
  • A satellite camera thermal protection door system with active temperature control
  • A satellite camera thermal protection door system with active temperature control

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Embodiment Construction

[0027] The invention relates to a satellite camera thermal protection door system with active temperature control. Such as figure 1 , figure 2 The system shown is installed on the hood 4 of the space camera, and consists of three parts: a temperature control system 1 , a drive system 2 , and a heat protection door body 3 . Among them, the temperature control system 1 is composed of a pre-embedded electric heating plate 11, a temperature sensor 12 and a heating controller 13; the driving system 2 is composed of a reduction mechanism 21 and a driving motor 22; Surface multi-layer heat insulation material 32, inner surface high-emissivity coating 33, installation ring 34; drive motor 22 and deceleration mechanism 21 are fixed on the sunshade 4, installation ring 34 is fixed on the heat protection door structure plate 31, deceleration The mechanism 21 is fixed on the mounting ring 34 by bolts to form a connection with the main body 3 of the heat protection door; the embedded el...

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Abstract

The invention discloses a satellite camera heat protection door system with an active temperature control function. The satellite camera heat protection door system with the active temperature control function is composed of a heat protection door body, a driving system and a temperature control system. The heat protection door body is composed of a heat protection door structural plate, multi-layer thermal insulation materials on the outer surface, a high-emission-rate coating on the inner surface and an installment ring; the driving system is composed of a speed reduction mechanism and a driving motor; the temperature control system is composed of an embedded electrical heating piece, a temperature sensor and a heating controller; the multi-layer thermal insulation materials cover the heat protection door structural plate; the high-emission-rate coating coats the inner side of the heat protection door structural plate; the driving motor and the speed reduction mechanism are fixed to a camera sunshade; the installment ring of the heat protection door is fixed to the heat protection door structural plate; the driving motor is connected with the installment ring of the heat protection door through the speed reduction mechanism; the motor rotates to open or close the heat protection door. The satellite camera heat protection door system with the active temperature control function can reduce heat leakage of a camera in the non-imaging process and power consumption of active heating of the camera and ensure that the temperature of the camera is stable in the imaging process.

Description

technical field [0001] The invention belongs to the technical field of spacecraft heat control, and is an active and passive temperature control device. Can be used to improve thermal stability of satellite cameras and reduce active heating power consumption for thermal control of cameras. Background technique [0002] In recent years, aerospace optical remote sensing technology has developed rapidly, and the resolution of satellites has been continuously improved. At the same time, many high-resolution remote sensing satellites have rapid attitude maneuvering capabilities. , This design improves the time resolution of the satellite's earth observation, expands the observation area, and has both detection and mapping capabilities. When the attitude of remote sensing satellites is frequently maneuvered, the heat flow outside the space changes rapidly, the thermal stabilization time required for imaging is long, and the heat leakage of the camera is serious. The influence of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D23/20G03B17/55G03B30/00
Inventor 窦强高永新任放朱军曹启鹏韩杏子李劲东
Owner AEROSPACE DONGFANGHONG SATELLITE
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