Solar panel drive mechanism thermal protection device
A technology for solar panels and driving mechanisms, applied in the aerospace field, can solve the problems of high temperature and stuck at the exposed end of the shaft system, and achieve the effect of a reasonable and feasible thermal design method, eliminating interference and avoiding direct exposure.
Active Publication Date: 2021-02-02
SHANGHAI SATELLITE ENG INST
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Problems solved by technology
However, this method cannot effectively solve the phenomenon that the temperature of the exposed end of the shaft system is too high and the risk of jamming occurs when the temperature of the cable bundle is too high
Method used
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Embodiment
[0026] In this embodiment, the heat protection device of the solar panel driving mechanism of the present invention is introduced as follows: it includes a solar panel tripod, a light baffle and a connector bracket, and the light baffle is fixed on the solar panel tripod to block sunlight , one end of the connector bracket is fixed on the sun-back surface of the light shield, and the other end is used to fix the connector.
[0027] Next, the present invention will be described in detail.
[0028] The purpose of the present invention is to provide a thermal protection device for the driving mechanism of the solar panel. The thermal protection device for the driving mechanism of the solar panel of the present invention can reduce the thermal deformation of the SADA shaft system and realize the temperature level and temperature gradient of the shaft system of the driving mechanism on the rail. control, so as to avoid stuck faults.
[0029] In one embodiment, according to the env...
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The invention relates to a thermal protection device for a solar panel driving mechanism in the field of aerospace technology, comprising a solar panel tripod, a light shield and a connector bracket, and the light shield is fixed on the solar sail tripod to block sunlight , one end of the connector bracket is fixed on the sun-back surface of the light shield, and the other end is used to fix the connector. The device of the invention utilizes the driving mechanism to drive the on-orbit working characteristics of the solar panels, constrains and fixes the direction of the cable bundles closely related to the SADA temperature, and uses a light-shielding device to block them to prevent the cable bundles from being directly irradiated. The beam heat dissipation provides a stable and good heat dissipation channel, which reduces the temperature level of the extraterrestrial cable bundle, thereby reducing the thermal deformation of the exposed end of the drive mechanism in the circumferential direction and the axial direction of the shaft system, and avoiding the thermal deformation of the drive mechanism due to excessive thermal deformation of the shaft system. The stuck fault has the advantages of high reliability, strong adaptability, small temperature fluctuation, simple process, and low resource overhead.
Description
technical field [0001] The invention relates to the field of aerospace technology, in particular to a thermal protection device for a driving mechanism of a solar panel. Background technique [0002] The purpose of the solar panel drive mechanism (SADA) or bearing and power transfer device (BAPTA) of all orbiting satellites is to keep the surface of the solar cell always facing the sun, thereby improving the efficiency of the solar cell. On the one hand, the driving mechanism of the solar panel drives the solar wing to rotate around the spacecraft body, and on the other hand, it transmits the electric energy generated by the solar wing to the spacecraft body. It mainly includes motors, gear transmissions and their bearings, as well as brush slip ring devices that transmit electric power. [0003] With the development of satellite platform technology, the power consumption requirements of large satellites are increasing. For satellites that use solar panels to obtain energy,...
Claims
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IPC IPC(8): B64G1/22B64G1/44
Inventor 王彦胡炳亭江世臣董瑶海康奥峰杨剑刘炜葳陈彬彬程梅苏
Owner SHANGHAI SATELLITE ENG INST