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Magnetic fluid micro-channel thermal control system of microsatellite standalone

A magnetic fluid and micro-satellite technology, which is applied in cooling/ventilation/heating transformation, electrical components, electrical equipment structural parts, etc., can solve the problems of poor temperature control, poor active heat dissipation of a single machine, and ineffective heat utilization of micro-satellites, etc., to achieve Long working time, solve the effect of high local temperature and large power consumption

Inactive Publication Date: 2016-05-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of poor temperature control performance of the existing micro-satellite thermal control system, poor active heat dissipation of a single machine, and inability to realize effective heat utilization in the micro-satellite, and further provides a micro-satellite single-machine magnetic fluid microchannel thermal control system

Method used

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  • Magnetic fluid micro-channel thermal control system of microsatellite standalone
  • Magnetic fluid micro-channel thermal control system of microsatellite standalone
  • Magnetic fluid micro-channel thermal control system of microsatellite standalone

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specific Embodiment approach 1

[0023] Specific implementation mode one: combine Figure 1-Figure 3 Explain, the magnetic fluid microchannel thermal control system of the microsatellite stand-alone of the present embodiment, it comprises electromagnetic pump 1, magnetic fluid pipeline 2, hot end magnetic fluid microchannel 3 and cold end magnetic fluid microchannel 4;

[0024] The outlet of the electromagnetic pump 1 is communicated with the inlet of the hot-end magnetic fluid microchannel 3 through the magnetic fluid pipeline 2, the inlet of the electromagnetic pump 1 is communicated with the outlet of the cold-end magnetic fluid microchannel 4 through the magnetic fluid pipeline 2, and the hot-end magnetic fluid microchannel The outlet of 3 communicates with the inlet of the cold-end magnetic fluid microchannel 4 through the magnetic fluid pipeline 2 .

[0025] Electromagnetic drive magnetic fluid working medium heat exchange design, excellent thermal performance of working medium, simple and compact drivi...

specific Embodiment approach 2

[0026] Embodiment 2: The magnetic fluid in the magnetic fluid pipeline 2 of this embodiment is brine or liquid metal mercury or liquid metal gallium or liquid gallium-based alloy. In this way, the electrical conductivity, magnetic permeability and thermal conductivity of brine or liquid metal or metal-based alloy are relatively large, the kinematic viscosity of liquid metal or metal-based alloy is small, the flow resistance is small, and the heat transfer efficiency is large, which meets the design requirements and According to actual needs, the thermal conductivity of liquid metal mercury is 8.34W / (m·K), and the thermal conductivity of gallium can reach 30W / (m·K). Others are the same as in the first embodiment.

specific Embodiment approach 3

[0027] Embodiment 3: The magnetic fluid microchannel 3 at the hot end of this embodiment is made of silicon or copper. With such arrangement, the thermal conductivity of the silicon or copper material is good. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a magnetic fluid micro-channel thermal control system of a microsatellite standalone, relates to a micro-channel-based thermal control system applied to a microsatellite, and solves the problems that existing microsatellite thermal control systems are poor in temperature control performance and poor in standalone active cooling and cannot realize effective thermal utilization in the microsatellite. The magnetic fluid micro-channel thermal control system of the microsatellite standalone comprises an electromagnetic pump, magnetic fluid pipelines, a hot-end magnetic fluid micro-channel and a cold-end magnetic fluid micro-channel. The outlet of the electromagnetic pump is communicated with the inlet of the hot-end magnetic fluid micro-channel through the magnetic fluid pipeline. The inlet of the electromagnetic pump is communicated with the outlet of the cold-end magnetic fluid micro-channel through the magnetic fluid pipeline. The outlet of the hot-end magnetic fluid micro-channel is communicated with the inlet of the cold-end magnetic fluid micro-channel through the magnetic fluid pipeline. The magnetic fluid micro-channel thermal control system of the microsatellite standalone is used for spacecrafts.

Description

technical field [0001] The invention relates to a thermal control system based on micro-channels applied in micro-satellites, which uses magnetic fluid as a working medium to realize local active thermal control of a single machine in a tiny space. Background technique [0002] Traditional thermal control systems are divided into two types: passive thermal control technology without temperature adjustment capability and active temperature control technology that can actively change heat transfer characteristics according to temperature requirements. At present, most spacecraft adopt a thermal control design scheme with passive as the main and active as the auxiliary. Passive thermal control mainly relies on coatings, multi-layer insulation materials, and special layout of a single machine to control the radiated heat from the heat dissipation surface through a single channel. Most of the active thermal control is to add heating chips to certain parts, and then selectively h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20
CPCH05K7/20218
Inventor 马宇冯建朝宋苗苗
Owner HARBIN INST OF TECH
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